Relevant bibliographies by topics / In-cylinder models

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  2. Dissertations / Theses
  3. Books
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Academic literature on the topic 'In-cylinder models'

Author: Grafiati
Published: 4 June 2021
Last updated: 11 February 2022

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Journal articles on the topic "In-cylinder models"

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Piiper, Johannes, and Peter Scheid. "Cross-sectional PO2 distributions in Krogh cylinder and solid cylinder models." Respiration Physiology 64, no. 3 (June 1986): 241–51. http://dx.doi.org/10.1016/0034-5687(86)90118-0.

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Žák, Zdeněk, Miloslav Emrich, Michal Takáts, and Jan Macek. "In-Cylinder Heat Transfer Modelling." Journal of Middle European Construction and Design of Cars 14, no. 3 (December 1, 2016): 2–10. http://dx.doi.org/10.1515/mecdc-2016-0009.

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Abstract The goal of the paper is to discuss specific features of the in-cylinder heat transfer calculation based on widely used empirical formulas. The potential of in-house codes compared with commercially available software packages is presented. The principles of user models in the GT-SUITE environment are also explained. The results of calibrated models are briefly discussed.
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Kurbatova, Galina, and Nadezda Ermolaeva. "Analysis of the Cylinder Glaciation Models in Seawater." Applied Mathematics & Information Sciences 11, no. 3 (May 1, 2017): 925–30. http://dx.doi.org/10.18576/amis/110333.

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Sharif, M., and Sobia Sadiq. "Cracking in charged anisotropic cylinder." Modern Physics Letters A 32, no. 18 (April 28, 2017): 1750091. http://dx.doi.org/10.1142/s0217732317500912.

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In this paper, we study the stability of static charged anisotropic cylindrically symmetric compact object through cracking. The Einstein–Maxwell field equations and conservation equation are formulated. We then apply local density perturbation and study the behavior of force distribution function. Finally, the cracking is explored for two models satisfying specific form of Chaplygin equation of state. It is found that these models exhibit cracking and the instability increases as the value of charge parameter is increased.
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Basha, Syed Ameer, and K. Raja Gopal. "In-cylinder fluid flow, turbulence and spray models—A review." Renewable and Sustainable Energy Reviews 13, no. 6-7 (August 2009): 1620–27. http://dx.doi.org/10.1016/j.rser.2008.09.023.

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Kao, Minghui, and John J. Moskwa. "Turbocharged Diesel Engine Modeling for Nonlinear Engine Control and State Estimation." Journal of Dynamic Systems, Measurement, and Control 117, no. 1 (March 1, 1995): 20–30. http://dx.doi.org/10.1115/1.2798519.

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Engine models that are used for nonlinear diesel engine control, state estimation, and model-based diagnostics are presented in this paper. By collecting, modifying, and adding to current available engine modeling techniques, two diesel engine models, a mean torque production model and a cylinder-by-cylinder model, are summarized for use in the formulation of control and state observation algorithms. In the cylinder-by-cylinder model, a time-varying crankshaft inertia model is added to a cylinder pressure generator to simulate engine speed variations due to discrete combustion events. Fuel injection timing and duration are control inputs while varying engine speed, cylinder pressure, and indicated torque are outputs from simulation. These diesel engine models can be used as engine simulators and to design diesel engine controllers and observers.
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Ma, Yong Guang, Ning Ran, and Bing Zheng. "Research of Calculation Models for Exhaust Enthalpy of Steam Turbine." Advanced Materials Research 550-553 (July 2012): 3160–63. http://dx.doi.org/10.4028/www.scientific.net/amr.550-553.3160.

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For the low pressure (LP) cylinder of a steam turbine, computation of the exhaust enthalpy is an important part in thermal power generating unit performance monitoring. A new online model for calculating the exhaust enthalpy was proposed aiming at the limitation of existing online calculation model for calculating the enthalpy of steam turbine LP cylinder exhaust steam. This model treats LP cylinder, condenser and corresponding heater as an open system, according to the energy balance equation of this open system, figuring out its exhaust enthalpy. Calculation results of typical steam turbine show that: in a large load change range, the results are close to thermal experimental value, the accuracy is similar to energy balance method.
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Oden, J. T., T. L. Lin, and J. M. Bass. "A Finite Element Analysis of the General Rolling Contact Problem for a Viscoelastic Rubber Cylinder." Tire Science and Technology 16, no. 1 (January 1, 1988): 18–43. http://dx.doi.org/10.2346/1.2148795.

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Abstract Mathematical models of finite deformation of a rolling viscoelastic cylinder in contact with a rough foundation are developed in preparation for a general model for rolling tires. Variational principles and finite element models are derived. Numerical results are obtained for a variety of cases, including that of a pure elastic rubber cylinder, a viscoelastic cylinder, the development of standing waves, and frictional effects.
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Cuper Przybylska, Dominika. "Overview of combustion process models in a cylinder of piston engine." AUTOBUSY – Technika, Eksploatacja, Systemy Transportowe 19, no. 4 (April 30, 2018): 48–52. http://dx.doi.org/10.24136/atest.2018.020.

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The article presents an overview of models used to calculate combustion process parameters in piston engines. One of the applied techniques is modelling based on the mathematical description of physical phenomena. The level of complexity of such a description depends, however, on the purpose of the model, the efficiency of calculations and the possibility of obtaining reliable measurement data. The paper presents various methods of modelling phenomena occurring in the cylinder of a Diesel engine. Presented are assumptions and effects of modelling using models from 0-dimensional and single-zone to complex 3-dimensional models, describing the phenomena of turbulent mass movements using computer fluid mechanics.
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Alam, MM, and MA Momin. "Performance of Existing Maize Shellers in Bangladesh." Progressive Agriculture 20, no. 1-2 (November 5, 2013): 207–20. http://dx.doi.org/10.3329/pa.v20i1-2.16873.

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This study was conducted to identify the technical and economical performance of the existing models of maize sheller in the country and suggest the best maize sheller models for the farmers during 3 September 2006 to 30 March 2007 in the area of Bogra, Rangpur, Dinajpur, Rajshahi and Jessore. Detail field tests were conducted on seven selected maize sheller models of three categories to assess the comparative performance. Three basic designs of maize sheller models were identified through field survey and secondary information. The models were Spike-pinion (SP) type, Spiral rasp-bar cylinder (SBC) type and Parallel rasp-bar cylinder (PBC) type. The technical performances of the selected maize sheller models were evaluated on the basis of throughput capacity, shelling capacity, cylinder loss, separating loss, broken kernel and shelling efficiency. The shelling capacity and efficiency of Binimoy and Sarker spike-pinion (SP) type models were found about 0.45 ton/hr and 93%, respectively. Similarly, the shelling capacities and efficiencies of Farida, Rahman and Uttaran spiral rasp-bar cylinder (SBC) models were ranged between 2.8 to 4.0 ton/hr and 93 to 97%, respectively. Farida parallel rasp-bar (PBC) type maize sheller had shown incredible shelling efficiency of about 99% with almost negligible cylinder (0.25%) and separating (0.25%) losses along with lowest broken kernel (2.5%) percentage. However, the shelling capacity was found comparatively low about 1.9 ton/hr. The shelling costs, benefit-cost ratios and net margins of spiral rasp-bar cylinder models vary between Tk. 91-97/ton, 1.28-1.37 and Tk78-134/hr, respectively. Among the models Farida (SBC) appeared as the most economic one having lowest shelling cost of Tk. 91/ton with the highest benefit-cost ratio of 1.37 and net margin of Tk. 134/hr (determined at a custom-hire rate of Tk. 7 per 40 kg of shelled kernel). Comparative economic uses of the selected maize shellers suggest that the use of hand sheller is beneficial up to an annual use of 13 ton. Whereas, Binimoy (SP) and Sarker (SP) models are economic for annual use between 13 and 30 ton, and Farida (SBC), Rahman (SBC) and Uttaran (SBC) models are economic for shelling over 30 ton per annum. Economic analysis suggest that hand sheller could be beneficial for very small farm holdings, Binimoy (SP) and Sarker (SP) models for small farm holdings and Farida (SBC), Rahman (SBC) and Uttaran (SBC) models for medium to large farm holdings and custom-hire service.DOI: http://dx.doi.org/10.3329/pa.v20i1-2.16873 Progress. Agric. 20(1 & 2): 207 – 220, 2009
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Dissertations / Theses on the topic "In-cylinder models"

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Montell, Otto. "Advanced concepts in Modelica and their implementation in VehProLib." Thesis, Linköping University, Department of Electrical Engineering, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-2348.

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VehProLib is one of many libraries being developed for the object oriented multi-domain language Modelica. The layout and the current status of the library are shown. The aims of the library are to provide the user with a number of different components with different levels of complexity. The components included range from mean value engine components to in-cylinder models. An efficient way to handle parameters using records is provided. Different bus systems are implemented and discussed. Furthermore are replaceable fluid models introduced in the library. It will be shown that Modelica is a very efficient way to create an advanced modelling library.

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Arimboor, Chinnan Jacob. "Simulation and validation of in-cylinder combustion for a heavy-duty Otto gas engine using 3D-CFD technique." Thesis, KTH, Förbränningsmotorteknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-245172.

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Utsläpp från bilar har spelat stor roll de senaste decennierna. Detta har lett till ökad användning av Otto gasmotorer som använder naturgas som bränsle. Nya motordesigner behöver optimeras för att förbättra motorens effektivitet. Ett effektivt sätt att göra detta på är genom användningen av simuleringar för att minska ledtiden i motorutvecklingen. Verifiering och validering av simuleringarna spelar stor roll för att bygga förtroende för och förutsägbarhet hos simuleringsresultaten. Syftet med detta examensarbete är att föreslå förbränningsmodellparametrarna efter utvärdering av olika kombinationer av förbrännings- och tändmodeller för Otto förbränning, vad gäller beräkningstid och noggrannhet. In-cylindertrycksspår från simulering och mätning jämförs för att hitta den bästa kombinationen av förbrännings- och tändmodell. Inverkan av tändtid, antal motorcykler och randvillkor för simuleringsresultatet studeras också. Resultaten visar att ECFM-förbränningsmodellen förutsäger simuleringsresultaten mer exakt när man jämför med mätningarna. Effekten av tändningstiden på olika kombinationer av förbrännings- och tändningsmodell utvärderas också. Stabiliteten hos olika förbränningssimuleringsmodeller diskuteras också under körning för fler motorcykler. Jämförelse av beräkningstid görs även för olika kombinationer av förbrännings- och tändmodeller. Resultaten visar också att flamspårningsmetoden med Euler är mer känslig för cellstorlek och kvalitet hos simuleringsnätet, jämfört med övriga studerade modeller. Rekommendationer och förslag ges om nät- och simulerings-inställningar för att prediktera förbränningen på ett så bra sätt som möjligt. Några möjliga förbättringsområden ges som framtida arbete för att förbättra noggrannheten i simuleringsresultaten.
Emission from automobiles has been gaining importance for past few decades. This has gained a lot of impetus in search for alternate fuels among the automotive manufacturers. This led to the increase usage of Otto gas engine which uses natural gas as fuel. New engine designs have to be optimized for improving the engine efficiency. This led to usage of virtual simulations for reducing the lead time in the engine development. The verification and validation of actual phenomenon in the virtual simulations with respect to the physical measurements was quite important.  The aim of this master thesis is to suggest the combustion model parameters after evaluating various combination of combustion and ignition models in terms of computational time and accuracy. In-cylinder pressure trace from the simulation is compared with the measurement in order to find the nest suited combination of combustion and ignition models. The influence of ignition timing, number of engine cycles and boundary conditions on the simulation results are also studied. Results showed that ECFM combustion model predicts the simulation results more accurately when compare to the measurements. Impact of ignition timing on various combination of combustion and ignition model is also assessed. Stability of various combustion simulation models is also discussed while running for more engine cycles. Comparison of computational time is also made for various combination of combustion and ignition models. Results also showed that the flame tracking method using Euler is dependent on the mesh resolution and the mesh quality.  Recommendations and suggestions are given about the mesh and simulation settings for predicting the combustion simulation accurately. Some possible areas of improvement are given as future work for improving the accuracy of the simulation results.
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Cheng, Xinwei. "Development of reduced reaction kinetics and fuel physical properties models for in-cylinder simulation of biodiesel combustion." Thesis, University of Nottingham, 2016. http://eprints.nottingham.ac.uk/33397/.

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The analyses of spray, combustion and emission characteristics for two types of biodiesel fuels, namely coconut methyl ester (CME) and soybean methyl ester (SME) are reported in this thesis. In order to produce high fidelity numerical spray and combustion representation for CME and SME, accurately developed thermo-physical properties and chemical kinetics were integrated with open-source computational fluid dynamics codes. First, the thermo-physical properties of CME and SME which include liquid and vapour properties were calculated using temperature-dependent correlations that were found in the literature. These calculated thermo-physical properties were then incorporated into Open Field Operation and Manipulation (OpenFOAM) to determine the sensitivities of the fuel properties on the spray development. Based on the sensitivity analyses, 5 of 12 thermo-physical properties, including latent heat of vaporisation, liquid density, liquid heat capacity, liquid surface tension and vapour pressure, gave the largest fluctuation to the spray development. Besides, coupled effects among the thermo-physical properties were discovered. The effects of thermo-physical properties were also varied according to the addition of unsaturation levels and combustion chemistries. Next, a generic reduced chemical kinetic mechanism, with components of methyl decanoate, methyl-9-decenoate and n-heptane was developed to represent the biodiesel fuels. The reduced mechanism with 92 species and 360 elementary reactions was validated under 72 shock tube conditions against experimental measurements in the literature and detailed mechanism predictions, for each zero-dimensional auto-ignition and extinction process using CHEMKIN-PRO. Maximum percentage errors of less than 40.0% were recorded when the ignition delay (ID) period predictions of the reduced mechanism were compared to those of detailed mechanism. Satisfactory agreement was attained when the predictions of the reduced mechanism were validated against the measured species profiles of rapeseed methyl ester oxidation in jet stirred reactor, which were obtained from the literature. Besides, the ID periods and lift-off lengths (LOL) predicted for the reacting spray at initial temperatures of 900 K and 1000 K achieved a maximum deviation of 29.8% and 43.4%, respectively, as compared to those of the experimental measurements in the literature. CME and SME were then numerically analysed under both the conditions of constant volume bomb and diesel engine, using the validated thermo-physical properties and reduced mechanism. The ambient oxygen level of the constant volume bomb was raised from 15.0 to 21.0% to emulate the intake air composition in the diesel engine. As such, the spray development was changed from radial to forward propagation, where LOL was reduced by 24.3%. Higher levels of carbon monoxide (CO), carbon dioxide (CO2) and soot mass concentrations were also obtained. When the unsaturation level was increased from 20.0% (CME) to 80.0% (SME), retarded spray and combustion developments were found in both the constant volume bomb and diesel engine. Besides, the CO, soot and nitric oxide (NO) emissions, including the tailpipe predictions were maximally increased by 32.0%. In overall, CME performs better than SME does because of the improved air-fuel mixing and decreased tailpipe NO, CO and CO2 emissions. Based on these, it is sufficient to deduce that the phenomena predicted in the constant volume bomb are adequate to replicate those in the diesel engine.
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Shi, Han. "Numerical simulations and predictive models of undrained penetration in soft soils." Texas A&M University, 2005. http://hdl.handle.net/1969.1/2555.

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There are two aspects in this study: cylinder penetrations and XBP (Expendable Bottom Penetrometer) interpretations. The cylinder studies firstly investigate the relationship between the soil resisting force and penetration depth by a series of rateindependent finite element analyses of pre-embedded penetration depths, and validate the results by upper and lower bound solutions from classical plasticity theory. Furthermore, strain rate effects are modeled by finite element simulations within a framework of rate-dependent plasticity. With all forces acting on the cylinder estimated, penetration depths are predicted from simple equations of motion for a single particle. Comparisons to experimental results show reasonable agreement between model predictions and measurements. The XBP studies follow the same methodology in investigating the soil shearing resistance as a function of penetration depth and velocity by finite element analyses. With the measurements of time decelerations during penetration of the XBP, sediment shear strength profile is inferred from a single particle kinetic model. The predictions compare favorably with experimental measurements by vane shear tests.
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White, Brian L. 1975. "Transport in random cylinder arrays : a model for aquatic canopies." Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/84784.

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Al-Durra, Ahmed Abad. "MODEL-BASED ESTIMATION FOR IN-CYLINDER PRESSURE OF ADVANCED COMBUSTION ENGINES." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1281715345.

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Marzouk, Osama A. "Simulation, Modeling, and Characterization of the Wakes of Fixed and Moving Cylinders." Diss., Virginia Tech, 2009. http://hdl.handle.net/10919/26316.

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The first goal of this work was to develop models based on nonlinear ordinary-differential equations or nonlinear algebraic equations, which produce the lift and drag coefficients on a cylinder or a cylinder-like structure. We introduced an improved wake oscillator for the lift, which combines the van der Pol and Duffing equations. We proposed a two-term quadratic model that relates the drag and lift coefficients, which reproduces the phase relationship between the drag and lift and its variation with the Reynolds number. We found that a mixed-type (external and parametric) forcing is needed to represent the effects of the cylinder motion. The second goal of this work was to develop a deeper understanding of the shedding and fluid forces on a cylinder and how they depend on its oscillatory motion within and outside the synchronization (or lock-in) band of frequencies. We performed extensive CFD (computational fluid dynamics) simulations and solved the unsteady Reynolds-averaged Navier-Stokes equations that govern the flow fields around fixed and moving (in either the cross-flow or in-line direction) cylinders. We identified various wake modes that can exist, depending on the cylinder motion (direction, amplitude, and frequency) by using modern methods of nonlinear dynamics. The possible responses can be period-one, periodic with large period, quasiperiodic, or chaotic. Moreover, we found that the route to chaos is torus breakdown. We investigated how four frequency sweeps of the cross-flow motion affect the response curves and the hysteresis phenomenon. We studied in detail the effect of the in-line motion on the wake and related this effect to the reduction in the lift and mean drag due to a synchronization type that is very different from the one due to cross-flow motion.
Ph. D.
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Ramstedt, Magnus. "Cylinder-by-Cylinder Diesel Engine Modelling : A Torque-based Approach." Thesis, Linköping University, Department of Electrical Engineering, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-2556.

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Continuously throughout the process of developing Engine Control Units (ECU), the ECU and its control functions need to be dimensioned and tested for the engine itself. Since interaction between an ECU and a physical engine is both expensive and inflexible, software models of the engine are often used instead. One such test system, where an ECU interacts with software models, is called Hardware-in-the-Loop (HiL). This thesis describes a model constructed to facilitate implementation on a HiL testbed.

The model, derived in Matlab/Simulink, is a Cylinder-by-Cylinder Engine Model (CCEM) reconstructing the angle synchronous torque of a diesel engine. To validate the model, it has been parameterised for the DaimlerChrysler engine OM646, a straight turbocharged four cylinder diesel engine, and tested towards measured data from a Mercedes-Benz C220 test vehicle. Due to hardware related problems, validation could only be performed for low engine speeds where the model shows good results. Future work around this theme ought to include further validation of the model as well as implementation on HiL.

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Mandokhot, Mohit Atul. "Development of Predictive Gasoline Direct Fuel Injector Model for Improved In-cylinder Combustion Characterization." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1534517269503352.

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Tanino, Yukie 1980. "Flow and solute transport in random cylinder arrays : a model for emergent aquatic plant canopies." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/46787.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2008.
This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Includes bibliographical references (p. 159-166).
With wetlands constituting about 6% of earth's land surface, aquatic vegetation plays a significant role in defining mean flow patterns and in the transport of dissolved and particulate material in the environment. However, the dependence of the hydrodynamic and transport processes on fundamental properties of an aquatic plant canopy has not been investigated systematically over the wide range of conditions that are observed in the field. A laboratory investigation was conducted to describe flow and solute transport in idealized emergent plant canopies. This thesis presents laboratory measurements of the mean drag, turbulence structure and intensity, and lateral dispersion of passive solute in arrays of randomly-distributed cylinders, a model for emergent, rigid aquatic plants. Mean drag per cylinder length normalized by the mean interstitial fluid velocity and viscosity increases linearly with cylinder Reynolds number. In contrast to the dependence previously reported for sparse arrays at Reynolds numbers greater than 1000, the drag coefficient increases with increasing cylinder density in intermediate and high cylinder densities. In dense arrays, turbulent eddies are constrained by the interstitial pore size such that the integral length scale is equal to the mean surface-to-surface distance between a cylinder in the array and its nearest neighbor. The classic scale model for mean turbulence intensity, which is a function of the inertial contribution to the drag coefficient, the solid volume fraction, and the integral length scale of turbulence normalized by d, is then confirmed with our laboratory measurements. Our laboratory experiments demonstrate that Kyy/ (d), the asymptotic (Fickian) lateral dispersion coefficient normalized by the mean interstitial fluid velocity and d, is independent of Reynolds number at sufficiently high Reynolds number.
(cont.) Although previous models predict that asymptotic lateral dispersion increases monotonically with cylinder density, laboratory measurements reveal that lateral dispersion at high Reynolds number exhibits three distinct regimes. In particular, an intermediate regime in which Kyy/ (d) decreases with increasing cylinder density is observed. A scale model for turbulent diffusion is developed with the assumption that only turbulent eddies with integral length scale greater than d contribute significantly to net lateral dispersion. The observed dependence of asymptotic dispersion on cylinder density is accurately described by a linear superposition of this turbulent diffusion model and existing models for dispersion due to the spatially-heterogeneous velocity field that arises from the presence of the cylinders. Finally, laboratory measurements support the conjecture that Kyy/ (d) is not strongly dependent on Reynolds number in dense arrays at any Red. However, the distance required to achieve asymptotic dispersion is shown to depend strongly on the Reynolds number.
by Yukie Tanino.
Ph.D.
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Books on the topic "In-cylinder models"

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Gonzalez, A. Cantizano. Application of non-linear K-E models to in-cylinder flows. Manchester: UMIST, 1997.

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Gul, M. Zafer. Prediction of in-cylinder flow by use ofamultiple-time-scaleturbulence model. Manchester: UMIST, 1994.

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Tseng, Cheng-Yuan. Velocity field of viscous vortex street in the wake of a cylinder. 1989.

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Hong, Seung-Ho. Monte Carlo simulation of radiation heat transfer in a three-dimensional enclosure containing a circular cylinder. 1994.

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Yogi, Jun. Use of trans-spectral coherence technique to study the flow dynamics in the near wake of a cylinder. 1993.

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Eppihimer, Melissa. Exemplars of Kingship. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780190903015.001.0001.

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The Akkadian kings (ca. 2334–2154 BCE) created the first territorial state in the ancient Near East and were remembered as model kings for more than two millennia thereafter. Exemplars of Kingship: Art, Tradition, and the Legacy of the Akkadians evaluates how later rulers engaged with Akkadian visual models and memories of Akkadian kingship in their own images. Through analyses of post-Akkadian victory monuments, votive statues, cylinder seals, and other works of art, the book explores the intersection of visual traditions and cultural memory in ancient Mesopotamia. Exemplars of Kingship also deconstructs the modern reception of Akkadian art to reveal its impact on our perception of ancient responses to Akkadian art and kingship.
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Autschbach, Jochen. Quantum Theory for Chemical Applications. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780190920807.001.0001.

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‘Quantum Theory for Chemical Applications (QTCA): From basic concepts to advanced topics’ is an introduction to quantum theory for students and practicing researchers in chemistry, chemical engineering, or materials chemistry. The text is self-contained such that only knowledge of high school physics, college introductory calculus, and college general chemistry is required, and it features many worked-out exercises. QTCA places special emphasis on the orbital models that are central to chemical applications of quantum theory. QTCA treats the important basic topics that a quantum theory text for chemistry must cover, and less-often treated models, such as the postulates of quantum theory and the mathematical background, the particle in a box, in a cylinder, and in a sphere, the harmonic oscillator and molecular vibrations, atomic and molecular orbitals, electron correlation, perturbation theory, and the basic aspects of various spectroscopies. Additional basic and advanced topics advanced topics that are covered in QTCA are band structure theory, relativistic quantum theory and its relevance to chemistry, the interactions of atoms and molecules with electromagnetic fields, and response theory. Finally, while it is not primarily a guide to computational chemistry, QTCA provides a solid theoretical background for many of the quantum chemistry methods used in contemporary research and in undergraduate computational chemistry laboratory courses. The text includes several appendices with important mathematical background, such as linear algebra and point group symmetry.
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Ruban, Anatoly I. Boundary-Layer Separation. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780199681754.003.0003.

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Chapter 2 discusses the experimental observations of the boundary-layer separation in subsonic and supersonic flows that lead to a formulation of the concept of viscous-inviscid interaction. It then turns to the so-called ‘self-induced separation’ of the boundary layer in supersonic flows. This theory is formulated based on the asymptotic analysis of the Navier–Stokes equations at large values of the Reynolds number. As a part of the flow analysis, this chapter also introduces the ‘triple-deck model’. It then shows how this model may be used to describe the classical problem of the boundary-layer separation in an incompressible fluid flow past a circular cylinder.
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Kamolpanus, Suwat. Feasibility study of the Delta T model in predicting moisture of the sheet during drying on multi-cylinder dryer. 1992.

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Houtman, E. M., W. J. Bannink, and B. H. Timmerman. Experimental and Computational Study of a Blunt Cylinder-Flare Model in a High Supersonic Flow (Series 01 - Aerodynamics , No 04). Delft Univ Pr, 1998.

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Book chapters on the topic "In-cylinder models"

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Teshima, Yoshinori, Yohsuke Hosoya, Kazuma Sakai, Tsukasa Nakano, Akiko Tanaka, Toshiaki Aomatsu, Kenji Yamazawa, Yuji Ikegami, and Yasunari Watanabe. "Development of Tactile Globe by Additive Manufacturing." In Lecture Notes in Computer Science, 419–26. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-58796-3_49.

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AbstractTo understand geographical positions, globes adapted for tactile learning is needed for people with visual impairments. Therefore, we created three-dimensional (3D) tactile models of the earth for the visually impaired, utilizing the exact topography data obtained by planetary explorations. Additively manufactured 3D models of the earth can impart an exact shape of relief on their spherical surfaces. In this study, we made improvements to existing models to satisfy the requirements of tactile learning. These improvements were the addition of the equator, prime meridian, and two poles to a basis model. Hence, eight types of model were proposed. The equator and the prime meridian were expressed by the belt on four models (i.e., B1, B2, B3, and B4). The height of their belt was pro-vided in four stages. The equator and the prime meridian were expressed by the gutter on four models (i.e., C1, C2, C3, and C4). The width of their gutter was provided in four stages. The north pole was expressed by a cone, while the south pole was expressed by a cylinder. The two poles have a common shape in all of the eight models. Evaluation experiments revealed that the Earth models developed in this study were useful for tactile learning of the visually impaired.
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Pacini, Benjamin, and Gregory Tipton. "Structural-Acoustic Mode Coupling in a Bolted Aluminum Cylinder." In Topics in Modal Analysis & Testing, Volume 10, 393–401. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-30249-2_35.

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Truscott, A., A. Noble, A. Akoachere, A. Beaumont, R. Müller, M. Hart, G. Krötz, C. Cavalloni, and M. Gnielka. "Cylinder Pressure Sensing and Model-Based Control in Engine Management Systems." In Advanced Microsystems for Automotive Applications 2000, 97–108. Berlin, Heidelberg: Springer Berlin Heidelberg, 2000. http://dx.doi.org/10.1007/978-3-642-18146-7_9.

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Jia, Laibing. "Locomotion Modes of a Plate in the Wake of a Cylinder." In The Interaction Between Flexible Plates and Fluid in Two-dimensional Flow, 89–100. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-662-43675-2_6.

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Singh, Dushyant, and Saurabh Kango. "Numerical Study of Slot Jet Impingement on a Cylinder by Using Two-Equation Turbulence Models." In Recent Advances in Mechanical Infrastructure, 257–63. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-4176-0_21.

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Hoofd, Louis, Cees Bos, and Zdenek Turek. "Modelling Erythrocytes as Point-Like O2 Sources in a Kroghian Cylinder Model." In Advances in Experimental Medicine and Biology, 893–900. Boston, MA: Springer US, 1994. http://dx.doi.org/10.1007/978-1-4615-2468-7_117.

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Bhattacharyya, Soumarup, Shivam Verma, and Sanjay Kumar. "Experimental Investigation of Three-Dimensional Modes in the Wake of a Rotationally Oscillating Cylinder." In Lecture Notes in Mechanical Engineering, 467–75. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-15-5183-3_50.

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Shi, Jun, Jianjun Zheng, Zhao Luo, Xiaodong Chen, Huibing Qin, and Bin Liu. "Study on In-cylinder Purification Technology for Gasoline Engine Based on Chemical Reaction Kinetics." In Application of Intelligent Systems in Multi-modal Information Analytics, 1242–51. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-15740-1_156.

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Lebedevas, Sergėjus, Vygintas Daukšys, and Linas Jonika. "Adapting a One-Dimensional Mathematical Model to the Dual Fuel Engine In-Cylinder Processes Modelling." In TRANSBALTICA XI: Transportation Science and Technology, 407–14. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-38666-5_43.

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Williams, D. R., H. Mansy, and P. M. Yang. "Symmetry of Two- and Three Dimensional Modes at a Vortex Shedding Interface in a Cylinder Wake." In Bluff-Body Wakes, Dynamics and Instabilities, 337–40. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-662-00414-2_72.

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Conference papers on the topic "In-cylinder models"

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Yan, Fengjun, and Junmin Wang. "Control-Oriented Dynamic Models for In-Cylinder Conditions of Multi-Cylinder Diesel Engines." In ASME 2010 Dynamic Systems and Control Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/dscc2010-4044.

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This paper presents control-oriented models, describing the dynamics of the in-cylinder conditions (ICCs) at intake valve closing (IVC), for multi-cylinder Diesel engines. Such models are based on multi-cylinder Diesel engines equipped with dual-loop exhaust gas recirculation (EGR) systems. As the thermodynamic boundary conditions for Diesel engine combustion, ICCs at IVC play critical roles for controlling combustion, particularly advanced combustion modes whose sensitivities to ICCs are very high. Grounded in physical principles, control-oriented ICC dynamic models were developed to describe the multi-cylinder characteristic and the coupling effects among the ICC quantities (i.e. in-cylinder gas mass, gas temperature, and oxygen fraction at IVC). The effectiveness of the developed control-oriented model was validated by comparing with a high-fidelity, 1-D computational, GT-Power engine model.
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Karlsson, Jonas, and Jonas Fredriksson. "Cylinder-by-Cylinder Engine Models Vs Mean Value Engine Models for Use in Powertrain Control Applications." In International Congress & Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1999. http://dx.doi.org/10.4271/1999-01-0906.

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Jorques Moreno, Carlos, Ola Stenlaas, and Per Tunestal. "Multi-Cylinder Adaptation of In-Cycle Predictive Combustion Models." In SAE Powertrains, Fuels & Lubricants Meeting. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2020. http://dx.doi.org/10.4271/2020-01-2087.

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Pomiˆrleanu, Radu. "Excitation Models for Buffeting of Cylinder Bundles in Parallel Flow." In 14th International Conference on Nuclear Engineering. ASMEDC, 2006. http://dx.doi.org/10.1115/icone14-89557.

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In this paper, the effect of several models representing the state of the art in wall-pressure fluctuations statistics were applied to the geometry of square rod bundles with P/D = 1.33, and used together with the random vibration theory to yield the spectral characteristics of rod vibration. Comparison of model predictions with experimental data representing rod acceleration allowed the selection of Efimtsov model as better suited for the rod bundles flow geometry and low frequency range. Further assimilating the mixing-vanes induced swirling flow as a disturbance to the parallel flow, two corrections were proposed based on comparison of measured vibration characteristics of vaned and vaneless bundles.
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Fogleman, Mark, Dietmar Rempfer, John L. Lumley, and Daniel Haworth. "POD Analysis of In-Cylinder Flows." In ASME 2002 Joint U.S.-European Fluids Engineering Division Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/fedsm2002-31413.

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Both time-dependent and time-invariant Proper Orthogonal Decompositions are performed on LES and PIV data as an initial step in a study of tumble breakdown in in-cylinder flows. Evidence of tumble instability during compression is found in the time-dependent POD of both data sets. Time-invariant POD modes are presented which will be used later in low-dimensional models of these systems.
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Chen, Lei, Juhchin A. Yang, Albert J. Shih, and Bruce L. Tai. "Investigation of Finite Element Thermal Models for Workpiece Temperature in Cylinder Boring." In ASME 2015 International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/msec2015-9415.

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The accuracy and computational efficiency of four finite element thermal models for workpiece temperature in cylinder boring are studied. High temperature in precision cylinder boring of automotive engine block can distort the workpiece, leading to thermally-induced dimensional and geometrical errors. In cylinder boring, the depth of cut is small compared to the bore diameter, so a fine mesh is usually needed to analyze the workpiece temperature distribution; however fine mesh on a relatively large workpiece also takes extensive computational resources. To understand the trade-off between accuracy and computational efficiency, the advection, surface heat, heat carrier, and ring heat finite element thermal models are introduced and compared quantitatively in a boring process. It is found comparable global temperature estimation from all four models. For the temperature near the cutting zone, the advection and surface heat models are more accurate to predict local temperatures but consume more computational resources. The heat carrier model predicts the surface temperature with reasonable accuracy and computational time. The ring heat model is the most computationally efficient but fails to accurately estimate local peak temperatures.
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Bas, Erhan, and Deniz Erdogmus. "Piecewise linear cylinder models for 3-dimensional axon segmentation in Brainbow imagery." In 2010 IEEE International Symposium on Biomedical Imaging: From Nano to Macro. IEEE, 2010. http://dx.doi.org/10.1109/isbi.2010.5490234.

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Harun, M. I., H. K. Ng, and S. Gan. "Evaluation of CFD sub-models for in-cylinder light-duty diesel engine simulation." In 2009 3rd International Conference on Energy and Environment (ICEE). IEEE, 2009. http://dx.doi.org/10.1109/iceenviron.2009.5398636.

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Nes, O. M., J. F. Stenebråten, and E. Fjær. "Improved Calibration of Borehole Stability Models in Shales Using Hollow Cylinder Laboratory Tests." In EAGE Shale Workshop 2010. Netherlands: EAGE Publications BV, 2010. http://dx.doi.org/10.3997/2214-4609.20145381.

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Kritzinger, H. P., C. R. Kleijn, and H. E. A. Van den Akker. "Drag on a Confined Cylinder in Axial Flow." In ASME/JSME 2004 Pressure Vessels and Piping Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/pvp2004-3098.

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Bluff body drag prediction remains a challenging subject for numerical investigators, with important industrial applications in aero- and hydrodynamics. A typical configuration of general interest is that of a confined axial cylinder. Experimental data for this geometry is scarce. In this paper, drag forces on this configuration were investigated using the commercial CFD solver Fluent 6. The work includes results with various mesh densities and different Reynolds numbers. Several common turbulence models as available in Fluent were applied. Good agreement to experiments was obtained with the realizable k-ε model and with the Reynolds stress transport model. The standard k-ε model was found to be inappropriate. Increased blockage (confinement) of the cylinder resulted in a corresponding increase in the drag force. This increase is shown to be a function of the mean velocity at the smallest cross-section of the channel.
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Reports on the topic "In-cylinder models"

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Haworth, Daniel C., Volker Sick, and James P. Szybist. Development and Validation of Predictive Models for In-Cylinder Radiation and Wall Heat Transfer. Office of Scientific and Technical Information (OSTI), December 2019. http://dx.doi.org/10.2172/1579326.

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