Relevant bibliographies by topics / Heat transient analysis

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Heat transient analysis'

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

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Journal articles on the topic "Heat transient analysis"

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Gondaliya, Vipul, Mehul Pujara, and Niraj Mehta. "Transient Heat transfer Analysis of Induction Furnace by Using Finite Element Analysis." Indian Journal of Applied Research 3, no. 8 (2011): 231–34. http://dx.doi.org/10.15373/2249555x/aug2013/75.

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HAMANAKA, Jyunichi. "Analysis for transient heat cenduction." Transactions of the Japan Society of Mechanical Engineers Series B 55, no. 514 (1989): 1661–65. http://dx.doi.org/10.1299/kikaib.55.1661.

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Tournier, J. M., and M. S. El-Genk. "A heat pipe transient analysis model." International Journal of Heat and Mass Transfer 37, no. 5 (1994): 753–62. http://dx.doi.org/10.1016/0017-9310(94)90113-9.

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Qian, Zhong, and Hai Min Wang. "Transient Heat Transfer Analysis of a Micro Heat Exchanger." Applied Mechanics and Materials 455 (November 2013): 330–34. http://dx.doi.org/10.4028/www.scientific.net/amm.455.330.

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The research object is a micro heat exchanger (MHT) applied in chip cooling, a three dimensional simulation model is developed to analyze the transient heat transfer of the exchanger according to both exponential and periodic heat fluxes. Based on the computational results of the profiles of temperature and thermal stress, a comparison of performance of heat exchangers made of copper and silicon nitride compound is carried out. The results indicate that the capability of a copper heat exchanger is better than that of a silicon nitride exchanger under low load working condition due to the excellent thermal conductivity of copper. However, with large load fluctuations, the advantage of structure strength of compound makes the exchanger attractive since it has lower thermal stress and could guarantee a long-term stability. The efforts of this paper are referable for further research and development of micro heat exchangers.
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Xuan, Y. "Transient analysis of multipass crossflow heat exchangers." Heat and Mass Transfer 31, no. 4 (1996): 223–30. http://dx.doi.org/10.1007/bf02328612.

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Xuan, Y. "Transient analysis of multipass crossflow heat exchangers." Heat and Mass Transfer 31, no. 4 (1996): 223–30. http://dx.doi.org/10.1007/s002310050049.

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Kaldgi, Abdul Rajak, Abdul Rajak Buradi, K. C. Vishwanath, et al. "Transient Heat Transfer Analysis Of Dimpled Rod." IOP Conference Series: Materials Science and Engineering 1065, no. 1 (2021): 012034. http://dx.doi.org/10.1088/1757-899x/1065/1/012034.

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Kumar, Vaibhav. "Transient State Analysis of Variation in Thermal Contact Area in Fin And Tube Heat Exchanger." International Journal Of Mechanical Engineering And Information Technology 05, no. 07 (2017): 1657–62. http://dx.doi.org/10.18535/ijmeit/v5i7.01.

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Zhao, Li Bin, Yuan Wei Li, and Feng Rui Liu. "Taylor Series Numerical Method in Transient Heat Conduction Analysis." Applied Mechanics and Materials 275-277 (January 2013): 677–80. http://dx.doi.org/10.4028/www.scientific.net/amm.275-277.677.

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Taylor series numerical method (TSNM) is extended to the field of transient heat conduction. Theoretical description of TSNM for transient heat conduction problems is presented. Furthermore, the algorithm is realized and embedded in commercial software ANSYS®. If a lumped mass heat capacity matrix provided, the governing equation of transient heat conduction problems, which is a differential equation, will be solved by a series of recursion calculation of Taylor expanding coefficients. A typical transient heat conduction problem with analytical solution was discussed to verify the TSNM. At last, the TSNM is applied in the transient heat analysis of an all-solid fiber optic gyro (FOG).
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Lu, Daogang, Xun Zhang, and Chao Guo. "A Computing Approach with the Heat-Loss Model for the Transient Analysis of Liquid Metal Natural Circulation Loop." Science and Technology of Nuclear Installations 2014 (2014): 1–12. http://dx.doi.org/10.1155/2014/769346.

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The transient behaviors of natural circulation loop (NCL) are important for the system reliability under postulated accidents. The heat loss and structure thermal inertia may influence the transient behaviors of NCL greatly, so a transient analysis model with consideration of heat loss was developed based on the MATLAB/Simulink to predict the thermal-hydraulic characteristic of liquid metal NCL. The transient processes including the start-up, the loss of pump, and the shutdown of thermal-hydraulic ADS lead bismuth loop (TALL) experimental facility were simulated by using the model. A good agreement is obtained to validate the transient model. The appended structure would provide significant thermal inertia and flatten the temperature distribution in the transients. The oscillations of temperature and flow rate are also weakened. The temperature difference between hot leg and cold leg would increase with the decrease of heat loss, so the flow rate increases as well. However, a significant increase of hot section temperature may cause a failure of facility integrity due to the decrease of heat loss. Hence, the full power of the core tank may also be limited.
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Dissertations / Theses on the topic "Heat transient analysis"

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Gwebu, Excellent Zibhekele. "Transient boiler heat exchanger thermal behaviour analysis." Master's thesis, University of Cape Town, 2014. http://hdl.handle.net/11427/13230.

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Includes bibliographical references.<br>Coal fired power plants that were built in the past four decades are aging. The main aging mechanisms are creep and thermal fatigue. Creep results from the high temperatures at which the components operate. Thermal fatigue is due to thermal stresses and these stresses result from temperature gradients within the material. Cycling of these thermal stresses accelerate the creep in a process called creep- fatigue aging. The boiler and its final heat exchangers and headers are the main components that are affected by these mechanisms. The aging of these components results in high maintenance costs, reduction of the plant reliability and availability, and contribute to increased safety risks for the plant and personnel. Therefore, there is a need to understand the steady state and dynamic behaviour of the components of these plants in order to predict the stresses that the material experience. This report discusses an investigation to the possibility of modelling the thermal dynamic behaviour of typical boiler heat exchanger components which have to withstand the highest temperature of a Pulverised Fuel Rankine cycle power plant. Thus, illuminating the issues that need to be addressed in modelling such heat exchangers. Modelling approaches of heat exchangers are systematically presented, starting with the use of exact analytical solutions. This is followed by the application of finite volume numerical method. Finishing off with the use of the Flownex software. The exact analytical solutions are used to characterise the transient temperature distribution in solid materials with simplified heat transfer, highlighting the dependence of the solutions on the Fourier number and Biot number. These solutions are further used to calculate thermal stresses generated in the material, illustrating the relationship between thermal stresses and temperature gradients. Furthermore, a finite volume solution is applied to modelling an infinitely long tube. I t is illustrated that for transient conduction heat transfer problems, the solution depends on both physical space discretisation and time- wise discretisation. The numerical solution is verified against the exact analytical solution. Finally, the Flownex software is used to illustrate the issues that need to be addressed when modelling the transient behaviour of a heat exchanger . For this purpose only the average area discretisation scheme is used since it allows for any generic solid structure to be modelled, provided that the appropriate level of discretization is applied. The Flownex modelling starts by modelling transient conduction heat transfer within an infinitely long tube. The Flownex solution is verified against the finite volume numerical solution. The Flownex solution depends on thickness discretisation, especially for thick cylindrical components. Finite tubes are also modelled on Flownex including axial discretisation and layout simplification of the tubes. Flownex is also used to model a heat exchanger bundle using two methods; a tube by tube method and a method that involves the combination of all ii the tubes into one tube. The product of the thermal resistance and the capacitance of the system governs the transient simulations for both methods.
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Boo, Joon-Hong. "Transient analysis of heat pipe radiators for space station applications." Diss., Georgia Institute of Technology, 1989. http://hdl.handle.net/1853/19553.

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Thuppal, Vedanta Srivatsan, and Naga Vamsi Krishna Kora. "HEAT TRANSIENT TRANSFER ANALYSIS OF BRAKE DISC /PAD SYSTEM." Thesis, Blekinge Tekniska Högskola, Institutionen för maskinteknik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-13461.

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Braking is mainly controlled by the engine. Friction between a pair of pads and a rotating disc converts the kinetic energy of the vehicle into heat. High temperatures can be reached in the system which can be detrimental for both, components and passenger safety. Numerical techniques help simulate load cases and compute the temperatures field in brake disc and brake pads. The present work implements a Finite Element (FE) toolbox in Matlab/Simulink able to simulate different braking manoeuvres used for brake dimensioning mainly in the early phase of car development process. The brake pad/disc geometry is considered as an axisymmetric body assuming negligible temperature gradient along the circumference of the disc. Calibration using three control factors namely: heat coefficient during braking , acceleration  and emissivity  for the implemented thermal model is performed using experimental investigation at Volvo Car Corporation (VCC) for three specific severe load cases. The thermal model is extended to measure brake fluid temperatures to ensure no vaporisation occurs. Simulation results of the brake disc and brake pad show good correlation with the experimental tests. A sensitivity analysis with the control factors showed convective coefficient during acceleration  the most sensitive, with temperature change of around 16%.
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Hendrix, Walter Adrian. "An analysis of body force effects on transient and steady-state performance on heat pipes." Diss., Georgia Institute of Technology, 1989. http://hdl.handle.net/1853/16678.

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Alshatti, Rashid Ali. "Heat Transfer Analysis of Slot Jet Impingement onto Roughened Surfaces." Scholar Commons, 2015. http://scholarcommons.usf.edu/etd/5898.

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The effect of surface roughness on jet impingement heat transfer was investigated in this research. A numerical analysis was conducted for free surface slot jet impinging normally onto a heated plate. Six different geometries and three different plate materials were investigated. The cooling fluid used for the analysis was water, and the flow was laminar with a range of Reynolds number (Re) from 500 to 1000. Temperature distribution, local and average heat transfer coefficient, and local and average Nusselt number were presented for each case. The steady state heat transfer results show that the increase in Reynolds number (Re) increases the local heat transfer coefficient and the local Nusselt number. Impinging the jet nozzle directly onto a step has a better heat transfer enhancement than impinging the jet nozzle in between steps. Materials with low thermal conductivity exhibit large variation in temperature along the solid-fluid interface. The variations of the interface temperature become smaller between all cases when applying the isothermal boundary condition. The transient heat transfer results show that the temperature of the interface increases with time until steady state condition is met. Materials with high thermal diffusivity reach the steady state condition with less time. The increase in surface roughness increases the time required to reach the steady state condition. The highest rates of heat transfer were found at locations where no fluid recirculation occurs. It takes less time to reach steady state condition when applying the isothermal boundary condition at the bottom surface of the plate.
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Carper, Jayme Lee. "Verification and Validation of a Transient Heat Exchanger Model." Wright State University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=wright1441064582.

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Tijiboy, Jose Carlos. "Steady and Transient Analysis of Flow and Heat Transfer in SPND Assembly." Thesis, Virginia Tech, 2008. http://hdl.handle.net/10919/36240.

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This thesis presents the analysis of flow and heat transfer for the SPND (Self-Powered Neutron Detector) system used within the nuclear reactor core in the U.S. Evolutionary Power Reactor developed by AREVA. The SPND system is composed of six individual detectors which are used for in-core measurement of thermal neutron flux. The study of the SPND system is important since this system provides information and signals necessary for safe reactor operation and control. The main goal of the project was to determine the maximum temperature for the SPND detectors under three different operating scenarios. The maximum temperature of the detectors is of special interest, since if it exceeds a limiting temperature of 622 K then the accuracy of the information provided by the system is reduced. All of the flow and heat transfer simulations were performed using the commercial software Fluent. <p> The first scenario that was studied was for the system under normal operating conditions. For this case, the maximum temperature for a detector was determined to be 603.4 K, which is within the proper range of operation. It was also important to determine the maximum temperature of the fluid within the SPND assembly in order to ascertain that boiling does not occur within the system during normal operation. The maximum fluid temperature was found to be 613.7 K, which is below the boiling temperature of water (618.05 K) at an operating pressure of 2250 psi. <p> The second scenario involved an increase in the power of the reactorâ s core by a factor of 17% in a 30 second period. The results of the unsteady calculation indicated that the maximum temperature for a detector was 608.5 K. The results also indicate that no boiling occurs inside of the SPND system. <p> The third scenario involved a loss of coolant flow in the SPND system. This reduction in flow rate caused the maximum temperature of the detectors to reach 619.6 K. For this case, boiling occurs within the guide tube and protection tube.<br>Master of Science
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Samayamantula, Sri Prithvi Samrat. "Development of a Computer Program for Transient Heat Transfer Coefficient Studies." Wright State University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=wright15581072805784.

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Franchetta, Matteo. "Experimental and transient computational fluid dynamic analysis of vehicle underhood in heat soak." Thesis, University College London (University of London), 2006. http://discovery.ucl.ac.uk/1444411/.

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Simulation-based analyses of underhood compartments are proving to be crucially important in a vehicle development program, reducing test work and time-to-market. While Computational Fluid Dynamics (CFD) simulations of steady forced flows have demonstrated reliable, studies of transient natural convective flows in engine compartments under thermal soak are not yet carried out due the high computing demands and lack of validated work. The present work assesses the practical feasibility of applying the CFD tool at the initial stage of a vehicle development programme for investigating the thermally-driven flow in an engine bay. A typical vehicle underhood was reproduced in half-scale for laboratory investigations. Surface temperatures of components, airflow patterns induced by the buoyant forces as well as the spatial distribution of the air temperature were measured under both steady and transient thermal conditions. Temperature mappings were obtained with thermocouples whereas airflow magnitudes and directions were determined with Particle Image Velocimetry (PIV) instrumentation. The detailed measurements were used as reference for validating the corresponding CFD simulations carried out with the software VECTIS. Experimental and numerical data correlated well in steady state, both quantitatively and qualitatively. A computation procedure that enables pseudo time-marching simulations to be performed with significantly reduced CPU time usage, in comparison to traditional fully-conservative transient simulations, was also developed. The methodology used a unique combination of CFD solver parameters to overcome the computationally challenging problem of solving for momentum transport in time-marching mode and for a long period of physical time. The procedure was successful in providing a detailed and time-accurate flow and thermal simulation of the underhood model during transient cooling. Such simulation would not have been practically feasible with a standard transient simulation. A reduction in CPU processing time in excess of 90% was achieved with good correlation between the CFD predictions and the experimental data.
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Erhart, Kevin. "EFFICIENT LARGE SCALE TRANSIENT HEAT CONDUCTION ANALYSIS USING A PARALLELIZED BOUNDARY ELEMENT METHOD." Master's thesis, University of Central Florida, 2006. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/2973.

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A parallel domain decomposition Laplace transform Boundary Element Method, BEM, algorithm for the solution of large-scale transient heat conduction problems will be developed. This is accomplished by building on previous work by the author and including several new additions (most note-worthy is the extension to 3-D) aimed at extending the scope and improving the efficiency of this technique for large-scale problems. A Laplace transform method is utilized to avoid time marching and a Proper Orthogonal Decomposition, POD, interpolation scheme is used to improve the efficiency of the numerical Laplace inversion process. A detailed analysis of the Stehfest Transform (numerical Laplace inversion) is performed to help optimize the procedure for heat transfer problems. A domain decomposition process is described in detail and is used to significantly reduce the size of any single problem for the BEM, which greatly reduces the storage and computational burden of the BEM. The procedure is readily implemented in parallel and renders the BEM applicable to large-scale transient conduction problems on even modest computational platforms. A major benefit of the Laplace space approach described herein, is that it readily allows adaptation and integration of traditional BEM codes, as the resulting governing equations are time independent. This work includes the adaptation of two such traditional BEM codes for steady-state heat conduction, in both two and three dimensions. Verification and validation example problems are presented which show the accuracy and efficiency of the techniques. Additionally, comparisons to commercial Finite Volume Method results are shown to further prove the effectiveness.<br>M.S.M.E.<br>Department of Mechanical, Materials and Aerospace Engineering;<br>Engineering and Computer Science<br>Mechanical Engineering
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Books on the topic "Heat transient analysis"

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Wendel, M. W. HTAS2, a three-dimensional transient shipping cask analysis tool. Office of Nuclear Material Safety and Safeguards, U.S. Nuclear Regulatory Commission, 1990.

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Wendel, M. W. HTAS2, a three-dimensional transient shipping cask analysis tool. Office of Nuclear Material Safety and Safeguards, U.S. Nuclear Regulatory Commission, 1990.

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Siegel, Robert. Two-flux Green's function analysis for transient spectral radiation in a composite. American Institute of Aeronautics and Astronautics, 1996.

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Siegel, Robert. Two-flux Green's function analysis for transient spectral radiation in a composite. American Institute of Aeronautics and Astronautics, 1996.

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Siegel, Robert. Two-flux Green's function analysis for transient spectral radiation in a composite. American Institute of Aeronautics and Astronautics, 1996.

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Amir, Faghri, Chang W. S, and United States. National Aeronautics and Space Administration., eds. Analysis of the transient compressible vapor flow in heat pipe. National Aeronautics and Space Administration, 1989.

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Modeling of transient heat pipe operation: Semiannual status report. Georgia Institute of Technology, School of Mechanical Engineering, 1985.

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United States. National Aeronautics and Space Administration., ed. Two-flux Green's function analysis for transient spectral radiation in a composite. American Institute of Aeronautics and Astronautics, 1996.

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Modeling of transient heat pipe operation: Period covered August 13, 1986 through February 18, 1987. National Aeronautics and Space Administration, 1987.

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S, El-Genk Mohamed, and United States. National Aeronautics and Space Administration., eds. "HPTAM", a two-dimensional heat pipe transient analysis model, including the startup from a frozen state: Final report no. UNM-ISNPS-4-1995. Institute for Space and Nuclear Power Studies, School of Engineering, University of New Mexico, 1995.

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Book chapters on the topic "Heat transient analysis"

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Kitahara, N., H. Yano, and A. Kieda. "A Combined Scheme of Heat Polynomials and Finite Differences for Two-Dimensional Heat Conduction Problems." In Transient/Dynamic Analysis and Constitutive Laws for Engineering Materials. Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3655-3_24.

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Chatterjee, Subhajit, Surajit Kr Roy, Chandan Giri, and Hafizur Rahaman. "Modeling and Analysis of Transient Heat for 3D IC." In Communications in Computer and Information Science. Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-7470-7_36.

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Coutinho, Alvaro L. G. A., José L. D. Alves, Luiz Landau, Luiz C. Wrobel, and Nelson F. F. Ebecken. "Element-by-Element Solution of Nonlinear Steady State Heat Conduction by a Newton-Lanczos Method." In Transient/Dynamic Analysis and Constitutive Laws for Engineering Materials. Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3655-3_31.

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Hiremath, Ashwini, and G. Janardhana Reddy. "Transient Analysis of Third-Grade Fluid Flow Past a Vertical Cylinder Embedded in a Porous Medium." In Numerical Heat Transfer and Fluid Flow. Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-1903-7_11.

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Sachdeva, Manish, and Laltu Chandra. "Transient Heat Transfer Analysis in Insulated Pipe with Constant and Time-Dependent Heat Flux for Solar Convective Furnace." In Springer Proceedings in Energy. Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-4576-9_22.

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Tanaka, M., M. Nakamura, and H. Ishikawa. "Analysis of Certain Inverse Problems in Transient Heat Conduction by the Boundary Element Method." In Boundary Element Methods. Springer Berlin Heidelberg, 1992. http://dx.doi.org/10.1007/978-3-662-06153-4_38.

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Barfusz, Oliver, Felix Hötte, Stefanie Reese, and Matthias Haupt. "Pseudo-transient 3D Conjugate Heat Transfer Simulation and Lifetime Prediction of a Rocket Combustion Chamber." In Notes on Numerical Fluid Mechanics and Multidisciplinary Design. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-53847-7_17.

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Abstract Rocket engine nozzle structures typically fail after a few engine cycles due to the extreme thermomechanical loading near the nozzle throat. In order to obtain an accurate lifetime prediction and to increase the lifetime, a detailed understanding of the thermomechanical behavior and the acting loads is indispensable. The first part is devoted to a thermally coupled simulation (conjugate heat transfer) of a fatigue experiment. The simulation contains a thermal FEM model of the fatigue specimen structure, RANS simulations of nine cooling channel flows and a Flamelet-based RANS simulation of the hot gas flow. A pseudo-transient, implicit Dirichlet–Neumann scheme is utilized for the partitioned coupling. A comparison with the experiment shows a good agreement between the nodal temperatures and their corresponding thermocouple measurements. The second part consists of the lifetime prediction of the fatigue experiment utilizing a sequentially coupled thermomechanical analysis scheme. First, a transient thermal analysis is carried out to obtain the temperature field within the fatigue specimen. Afterwards, the computed temperature serves as input for a series of quasi-static mechanical analyses, in which a viscoplastic damage model is utilized. The evolution and progression of the damage variable within the regions of interest are thoroughly discussed. A comparison between simulation and experiment shows that the results are in good agreement. The crucial failure mode (doghouse effect) is captured very well.
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Katsuo, M., Y. Nakano, T. Sawa, and M. Kawawaki. "Transient Thermal Stress Analysis of Butt Adhesive Joints Subjected to Heat Radiation at Side Surfaces of the Adhesive." In Computational Mechanics ’95. Springer Berlin Heidelberg, 1995. http://dx.doi.org/10.1007/978-3-642-79654-8_105.

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Dimitri, Giovanna Maria, Shruti Agrawal, Adam Young, et al. "Simultaneous Transients of Intracranial Pressure and Heart Rate in Traumatic Brain Injury: Methods of Analysis." In Acta Neurochirurgica Supplement. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-65798-1_31.

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"Transient Heat Conduction Analysis." In Fundamentals of the Finite Element Method for Heat and Fluid Flow. John Wiley & Sons, Ltd, 2005. http://dx.doi.org/10.1002/0470014164.ch6.

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Conference papers on the topic "Heat transient analysis"

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BEAM, J. "Transient heat pipe analysis." In 20th Thermophysics Conference. American Institute of Aeronautics and Astronautics, 1985. http://dx.doi.org/10.2514/6.1985-936.

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Kapros, T., J. Solyom, and I. Torok. "CONVECITVE HEAT TRANSFER ANALYSIS AT INDUSTRIAL FURNACES." In International Symposium on Transient Convective Heat Transfer. Begellhouse, 1996. http://dx.doi.org/10.1615/ichmt.1996.transientconvheattransf.330.

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Harley, Charles, and Amir Faghri. "TRANSIENT GAS-LOADED THERMOSYPHON ANALYSIS." In International Heat Transfer Conference 10. Begellhouse, 1994. http://dx.doi.org/10.1615/ihtc10.540.

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Roche, J. M. "NEW METHODS IN DATA ANALYSIS: POTENTIALS OFFERED FOR THE STUDY OF VARIABLE PHENOMENA." In International Symposium on Transient Convective Heat Transfer. Begellhouse, 1996. http://dx.doi.org/10.1615/ichmt.1996.transientconvheattransf.350.

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Vadakkan, Unnikrishnan, Jayathi Y. Murthy, and Suresh V. Garimella. "Transient Analysis of Flat Heat Pipes." In ASME 2003 Heat Transfer Summer Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/ht2003-47349.

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A stable numerical procedure is developed to analyze the transient performance of flat heat pipes for large input heat fluxes and high wick conductivity. Computation of flow and heat transfer in a heat pipe is complicated by the strong coupling among the velocity, pressure and temperature fields with phase change at the interface between the vapor and wick. A structured collocated finite volume scheme is used in conjunction with the SIMPLE algorithm to solve the continuity, energy and momentum equations. In addition, system pressurization is computed using overall mass balance. The stability of the standard sequential procedure is improved by accounting for the coupling between the evaporator/condenser mass flow rate and the interface temperature and pressure as well as the system pressure. The improved numerical scheme is applied to a flat two-dimensional heat pipe and shown to perform well. Parametric studies are performed by varying the vapor core thickness of the heat pipe and the heat input at the evaporator. The model predictions are validated by comparing the heat pipe wall temperatures against experimental values.
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Ligarius, P., Nordine Mouhab, and L. Estel. "Modal Estimates and Stability Analysis of a Heat Exchanger Application. - A Laplace Transform Approach -." In International Symposium on Transient Convective Heat Transfer. Begellhouse, 1996. http://dx.doi.org/10.1615/ichmt.1996.transientconvheattransf.300.

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Unsal, Mazhar. "ANALYSIS OF TRANSIENT PERIODIC LAMINAR INTERNAL FORCED CONVECTION VIA ASYMPTOTIC SOLUTION OF COMPLEX EIGENVALUE PROBLEMS." In International Symposium on Transient Convective Heat Transfer. Begellhouse, 1996. http://dx.doi.org/10.1615/ichmt.1996.transientconvheattransf.60.

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Dilsiz, Resul, and Y. Onur Devres. "Graphical Solution of the Transient Heat Transfer Problem." In NUMERICAL ANALYSIS AND APPLIED MATHEMATICS: International Conference on Numerical Analysis and Applied Mathematics 2008. American Institute of Physics, 2008. http://dx.doi.org/10.1063/1.2991066.

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Cartesegna, Marco, and Luca A. Tagliafico. "Transient Cooling Analysis Of Semi-Crystalline Polymers." In International Heat Transfer Conference 12. Begellhouse, 2002. http://dx.doi.org/10.1615/ihtc12.2160.

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Tournier, Jean-Michel, and Mohamed S. El-Genk. "‘‘HPTAM’’ heat-pipe transient analysis model: an analysis of water heat pipes." In Proceedings of the ninth symposium on space nuclear power systems. AIP, 1992. http://dx.doi.org/10.1063/1.41777.

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Reports on the topic "Heat transient analysis"

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Jang, J. H., A. Faghri, and W. S. Chang. Analysis of the transient compressible vapor flow in heat pipe. Office of Scientific and Technical Information (OSTI), 1989. http://dx.doi.org/10.2172/10181065.

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2

Maclaine-Cross, I. L., and A. A. Pesaran. Heat and Mass Transfer Analysis of Dehumidifiers Using Adiabatic Transient Tests. Office of Scientific and Technical Information (OSTI), 1986. http://dx.doi.org/10.2172/1129251.

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3

Moisseytsev, A., and J. J. Sienicki. NEUP Final Report: Analysis of Thermal Transients for a Sodium-CO2 Heat Exchanger. Office of Scientific and Technical Information (OSTI), 2019. http://dx.doi.org/10.2172/1569944.

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4

Treadwell, Jonathan R., James T. Reston, Benjamin Rouse, Joann Fontanarosa, Neha Patel, and Nikhil K. Mull. Automated-Entry Patient-Generated Health Data for Chronic Conditions: The Evidence on Health Outcomes. Agency for Healthcare Research and Quality (AHRQ), 2021. http://dx.doi.org/10.23970/ahrqepctb38.

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Abstract:
Background. Automated-entry consumer devices that collect and transmit patient-generated health data (PGHD) are being evaluated as potential tools to aid in the management of chronic diseases. The need exists to evaluate the evidence regarding consumer PGHD technologies, particularly for devices that have not gone through Food and Drug Administration evaluation. Purpose. To summarize the research related to automated-entry consumer health technologies that provide PGHD for the prevention or management of 11 chronic diseases. Methods. The project scope was determined through discussions with Key Informants. We searched MEDLINE and EMBASE (via EMBASE.com), In-Process MEDLINE and PubMed unique content (via PubMed.gov), and the Cochrane Database of Systematic Reviews for systematic reviews or controlled trials. We also searched ClinicalTrials.gov for ongoing studies. We assessed risk of bias and extracted data on health outcomes, surrogate outcomes, usability, sustainability, cost-effectiveness outcomes (quantifying the tradeoffs between health effects and cost), process outcomes, and other characteristics related to PGHD technologies. For isolated effects on health outcomes, we classified the results in one of four categories: (1) likely no effect, (2) unclear, (3) possible positive effect, or (4) likely positive effect. When we categorized the data as “unclear” based solely on health outcomes, we then examined and classified surrogate outcomes for that particular clinical condition. Findings. We identified 114 unique studies that met inclusion criteria. The largest number of studies addressed patients with hypertension (51 studies) and obesity (43 studies). Eighty-four trials used a single PGHD device, 23 used 2 PGHD devices, and the other 7 used 3 or more PGHD devices. Pedometers, blood pressure (BP) monitors, and scales were commonly used in the same studies. Overall, we found a “possible positive effect” of PGHD interventions on health outcomes for coronary artery disease, heart failure, and asthma. For obesity, we rated the health outcomes as unclear, and the surrogate outcomes (body mass index/weight) as likely no effect. For hypertension, we rated the health outcomes as unclear, and the surrogate outcomes (systolic BP/diastolic BP) as possible positive effect. For cardiac arrhythmias or conduction abnormalities we rated the health outcomes as unclear and the surrogate outcome (time to arrhythmia detection) as likely positive effect. The findings were “unclear” regarding PGHD interventions for diabetes prevention, sleep apnea, stroke, Parkinson’s disease, and chronic obstructive pulmonary disease. Most studies did not report harms related to PGHD interventions; the relatively few harms reported were minor and transient, with event rates usually comparable to harms in the control groups. Few studies reported cost-effectiveness analyses, and only for PGHD interventions for hypertension, coronary artery disease, and chronic obstructive pulmonary disease; the findings were variable across different chronic conditions and devices. Patient adherence to PGHD interventions was highly variable across studies, but patient acceptance/satisfaction and usability was generally fair to good. However, device engineers independently evaluated consumer wearable and handheld BP monitors and considered the user experience to be poor, while their assessment of smartphone-based electrocardiogram monitors found the user experience to be good. Student volunteers involved in device usability testing of the Weight Watchers Online app found it well-designed and relatively easy to use. Implications. Multiple randomized controlled trials (RCTs) have evaluated some PGHD technologies (e.g., pedometers, scales, BP monitors), particularly for obesity and hypertension, but health outcomes were generally underreported. We found evidence suggesting a possible positive effect of PGHD interventions on health outcomes for four chronic conditions. Lack of reporting of health outcomes and insufficient statistical power to assess these outcomes were the main reasons for “unclear” ratings. The majority of studies on PGHD technologies still focus on non-health-related outcomes. Future RCTs should focus on measurement of health outcomes. Furthermore, future RCTs should be designed to isolate the effect of the PGHD intervention from other components in a multicomponent intervention.
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