Gotowe bibliografie tematyczne / Corrugation height

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Gotowa bibliografia na temat „Corrugation height”

Autor: Grafiati

Data publikacji: 3 czerwca 2025

Data aktualizacji: 31 lipca 2025

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Artykuły w czasopismach na temat "Corrugation height"

Abtahi, Arman, and J. M. Floryan. "Natural convection in a corrugated slot." Journal of Fluid Mechanics 815 (February 23, 2017): 537–69. http://dx.doi.org/10.1017/jfm.2017.73.

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Analysis of natural convection in a horizontal slot formed by two corrugated isothermal plates has been carried out. The analysis is limited to subcritical Rayleigh numbers$Ra$where no secondary motion takes place in the absence of corrugations. The corrugations have a sinusoidal form characterized by the wavenumber, the upper and lower amplitudes and the phase difference. The most intense convection occurs for corrugation wavelengths comparable to the slot height; it increases proportionally to$Ra$and proportionally to the corrugation height. Placement of corrugations on both plates may eithe

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Bhattacharyya, Suvanjan, Debraj Sarkar, Ulavathi Shettar Mahabaleshwar, Manoj K. Soni, and M. Mohanraj. "Experimental study of thermohydraulic characteristics and irreversibility analysis of novel axial corrugated tube with spring tape inserts." European Physical Journal Applied Physics 92, no. 3 (2020): 30901. http://dx.doi.org/10.1051/epjap/2020200192.

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The current study experimentally investigates the heat transfer augmentation on the novel axial corrugated heat exchanger tube in which the spring tape is introduced. Air (Pr = 0.707) is used as a working fluid. In order to augment the thermohydraulic performance, a corrugated tube with inserts is offered. The experimental study is further extended by varying the important parameters like spring ratio (y = 1.5, 2.0, 2.5) and Reynolds number (Re = 10 000–52 000). The angular pitch between the two neighboring corrugations and the angle of the corrugation is kept constant through the experiments

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Vipin, V. P., and P. A. Krishnan Dr. "A FINITE ELEMENT STUDY ON THE PERFORMANCE OF CORRUGATED STEEL SECTIONS UNDER COMPRESSION." International Journal of Emerging Technologies and Innovative Research Volume 4, Issue 5 May-2017 eISSN: 2349-5162 (2017): 249–51. https://doi.org/10.5281/zenodo.583727.

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Corrugated steel sections are having a wide variety of applications in engineering fields like civil, mechanical, aviation, etc. The unique properties of corrugated steel sections make them a better option compared to the conventional thin steel sections. In the current study behaviour of thin steel shells with corrugations made of mild steel plates under compression is investigated using finite element software ABAQUS. The corrugated sections and the conventional sections under study are having the same area of cross section. For the corrugated sections, trapezoidal profile was used with corr

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Hou, Dan, Biao Tan, Binghao Shi, and Zheng Zhong. "Aerodynamic Effects of Time-Varying Corrugations on Dragonfly Wings in Flapping Flight." Biomimetics 9, no. 7 (2024): 433. http://dx.doi.org/10.3390/biomimetics9070433.

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The aerodynamic effects of wing corrugation on insect flight have received widespread attention. However, there has hardly been any specific focus on dynamic changes to corrugation angle in the models. The flexible vein joints containing resilin in the wings of dragonflies and damselflies enable the longitudinal veins to rotate and thereby change the corrugation angles throughout flapping cycles. Therefore, a two-dimensional corrugated airfoil with time-varying corrugation angles is proposed and the aerodynamic performance is evaluated in terms of aerodynamic force, power and efficiency. The r

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Abtahi, Arman, and J. M. Floryan. "Natural convection and thermal drift." Journal of Fluid Mechanics 826 (August 8, 2017): 553–82. http://dx.doi.org/10.1017/jfm.2017.426.

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An analysis of natural convection in a horizontal, geometrically non-uniform slot exposed to spatially non-uniform heating has been carried out. The upper plate is smooth and isothermal, and the lower plate has sinusoidal corrugations with a sinusoidal temperature distribution. The distributions of the non-uniformities are characterized in terms of the wavenumber$\unicode[STIX]{x1D6FC}$and their relative position is expressed in terms of the phase difference$\unicode[STIX]{x1D6FA}_{TL}$. The analysis is limited to heating conditions which do not give rise to secondary motions in the absence of

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Zhong, Yuzhou, Jingquan Zhao, Lei Zhao, Ge Gao, and Xiaowei Zhu. "Heat Transfer and Flow Resistance in Crossflow over Corrugated Tube Banks." Energies 17, no. 7 (2024): 1641. http://dx.doi.org/10.3390/en17071641.

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The engineering of tubes with surface corrugations is recognized as an effective method for enhancing heat transfer within the tube. Yet the impact of surface corrugation on the flow and heat transfer around the tube’s exterior remains inadequately explored. This study investigates the crossflow and heat transfer characteristics in banks of periodically inward-corrugated tubes using computational fluid dynamics. Numerical simulations were performed for both in-line and staggered tube arrangements, covering Reynolds numbers from 1000 to 10,000. The aim was to examine how various corrugation par

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YU, JIE, and LOUIS N. HOWARD. "On higher order Bragg resonance of water waves by bottom corrugations." Journal of Fluid Mechanics 659 (July 12, 2010): 484–504. http://dx.doi.org/10.1017/s0022112010002582.

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The exact theory of linearized water waves in a channel of indefinite length with bottom corrugations of finite amplitude (Howard & Yu, J. Fluid Mech., vol. 593, 2007, pp. 209–234) is extended to study the higher order Bragg resonances of water waves occurring when the corrugation wavelength is close to an integer multiple of half a water wavelength. The resonance tongues (ranges of water-wave frequencies) are given for these higher order cases. Within a resonance tongue, the wave amplitude exhibits slow exponential modulation over the corrugations, and slow sinusoidal modulation occurs ou

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Saha, S., J. C. Klewicki, A. Ooi, and H. M. Blackburn. "On scaling pipe flows with sinusoidal transversely corrugated walls: analysis of data from the laminar to the low-Reynolds-number turbulent regime." Journal of Fluid Mechanics 779 (August 14, 2015): 245–74. http://dx.doi.org/10.1017/jfm.2015.414.

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Direct numerical simulation was used to study laminar and turbulent flows in circular pipes with smoothly corrugated walls. The corrugation wavelength was kept constant at $0.419D$, where $D$ is the mean diameter of the wavy-wall pipe and the corrugation height was varied from zero to $0.08D$. Flow rates were varied in steps between low values that generate laminar flow and higher values where the flow is in the post-transitional turbulent regime. Simulations in the turbulent regime were also carried out at a constant Reynolds number, $\mathit{Re}_{{\it\tau}}=314$, for all corrugation heights.

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Nur, Monika, Naoya Yamaguchi, and Fumiyuki Ishii. "Simple Model for Corrugation in Surface Alloys Based on First-Principles Calculations." Materials 13, no. 19 (2020): 4444. http://dx.doi.org/10.3390/ma13194444.

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The structural stability of M/Ag(111)–3×3R30° surface alloys is systematically investigated by using first-principles calculations, where M is a member of group III (B, Al, Ga, In, Tl), IV (C, Si, Ge, Sn, Pb), and V (N, P, As, Sb, Bi) elements. We focus on the corrugation parameter d which is determined by the height of the M atom from the Ag atom in the plane of the top-most atom, and the relation between atomic radii and corrugations in M/Ag(111) is obtained. The tendencies of the corrugation parameter d can be understood by using a simple hard spherical atomic model. We introduce a new type

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Wang, J. F., S. L. Zhu, and J. Xie. "CFD-based investigation of R22 flow boiling characteristics in corrugated pipes." Journal of Physics: Conference Series 2047, no. 1 (2021): 012017. http://dx.doi.org/10.1088/1742-6596/2047/1/012017.

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Abstract Double pipes are widely used in the food industry. In order to investigate the influence of different corrugation heights on the heat transfer performance of the corrugated pipe, the corrugated tubes with different sizes have been analyzed. The influence of different corrugation heights on the heat transfer coefficient and the pressure drop has been studied. An effect of the refrigerant velocity on the heat transfer coefficient and the pressure drop has been analyzed. The results show that the highest heat transfer coefficient takes place at the corrugation height 3.3mm. With an incre

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Rozprawy doktorskie na temat "Corrugation height"

Vadeboncoeur, Natalie Ivonne. "Two-dimensional separate-sided surface height profiling of lumber." Thesis, University of British Columbia, 2008. http://hdl.handle.net/2429/780.

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Raw material accounts for a large proportion (approximately 75 percent) of a sawmill’s operating costs. However, about 15 percent of raw material ends up as low valued sawdust and planer shavings due to inaccurate cutting. Sizable financial benefits can be realized through maximizing conversion of raw material into valuable solid wood. Advanced process control in a sawmill can help achieve straighter cuts closer to final product dimensions and reduce loss of valuable raw material. A novel and practical method for enhanced process control in a sawmill is presented. A laser arrangement consisti

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Części książek na temat "Corrugation height"

Khavin, Gennadii. "Simulation and Design of Welded Plate Heat Exchangers with Channels of Different Corrugation Height." In Lecture Notes in Mechanical Engineering. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-93587-4_47.

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Chen, C. Julian. "Nanomechanical Effects." In Introduction to Scanning Tunneling Microscopy. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780198856559.003.0009.

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This chapter discusses the effect of force and deformation of the tip apex and the sample surface in the operation and imaging mechanism of STM and AFM. Because the contact area is of atomic dimension, a very small force and deformation would generate a large measurable effect. Three effects are discussed. First is the stability of the STM junction, which depends on the rigidity of the material. For soft materials, hysterisis is more likely. For rigid materials, the approaching and retraction cycles are continuous and reproducible. Second is the effect of force and deformation to the STM imagi

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Chen, C. Julian. "Atomic Forces And Tunneling." In Introduction To Scanning Tunneling Microscopy. Oxford University PressNew York, NY, 1993. http://dx.doi.org/10.1093/oso/9780195071504.003.0007.

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Abstract As we have discussed in Chapter I, the importance of forces in vacuum tunneling was first realized by Teague (1978), a few years before the invention of the STM. The attractive and repulsive forces between the two gold spheres cause minute deformations near the tunneling gap, which is enough to produce a substantial effect. Coombs and Pethica (1985) reported that the apparent barrier height in STM could be much lower than the work function. Such an anomalously low apparent barrier height is due to a mechanical contact between the tip and the sample, which makes the z reading from the

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Streszczenia konferencji na temat "Corrugation height"

Ferley, Dean, and Scott J. Ormiston. "Numerical Analysis of Laminar Forced Convection in Sinusoidal-Wavy-, Rounded-Ellipse-, and Rounded-Vee-Shaped Corrugated-Plate Channels." In 2010 14th International Heat Transfer Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/ihtc14-22082.

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Numerical analysis of steady, two-dimensional, laminar forced convection in corrugated-plate channels is performed using a commercial CFD code: ANSYS CFX. The flow domain consists of six modules in each of three wall corrugations: sinusoidal-wavy-shaped (SWS), rounded-ellipse-shaped (RES), and rounded-vee-shaped (RVS). One ratio of minimum-to-maximum plate spacings and one module length-to-height ratio is considered. Fluid flow and heat transfer are repeating in the modules and the results are examined in a typical module in the fully-developed region for Reynolds numbers in the range of 25 to

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Jin, Huajian, Guoqiang Li, and Feifei Sun. "Study on non-buckling steel plate shear walls with corrugated core panel." In 12th international conference on ‘Advances in Steel-Concrete Composite Structures’ - ASCCS 2018. Universitat Politècnica València, 2018. http://dx.doi.org/10.4995/asccs2018.2018.7009.

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In this paper, a non-buckling steel plate shear wall with corrugated core panel was introduced, which keeps itself from premature buckling by fully taking advantage of extra-large flexural stiffness of corrugated core panel and enables to yield before buckling. Most importantly, the optimal corrugation configuration of corrugated core panel was obtained by parametric investigation into detailed dimensions of single wave such as thickness, depth of corrugation, angle of corrugation and so on, which was hereafter validated by numerical simulation. Non-dimensional parameters such as height-to-thi

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Wu, Chengxing, Baijin Chen, and Chunsheng Ye. "An automatic metrology using the laser displacement sensor for the corrugation height of corrugated plate." In Optical Metrology and Inspection for Industrial Applications VI, edited by Benyong Chen, Sen Han, Toru Yoshizawa, and Song Zhang. SPIE, 2019. http://dx.doi.org/10.1117/12.2537567.

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Yucel, Adil, and Alaeddin Arpaci. "Theoretical and Experimental Vibration Analyses of Trapezoidal and Sinusoidal Corrugated Plates." In ASME 2012 11th Biennial Conference on Engineering Systems Design and Analysis. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/esda2012-82123.

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In this study, dynamic behaviour of trapezoidal and sinusoidal corrugated plates which are widely used in the fields of space, aviation, automotive, construction and shipbuilding have been analyzed. 330 different surface models varying according to corrugation height and number have been created for these plates which have various manufacturing parameters. At this stage, the number of analyses is 660. These models have been analyzed for different boundary conditions and modal analyses to obtain natural frequencies and mode shapes have been conducted using finite element method. In addition, ch

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Ergin, S., M. Ota, H. Yamaguchi, and M. Sakamoto. "A Numerical Study of the Effect of Interwall Spacing on Turbulent Flow in a Corrugated Duct." In ASME 1996 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1996. http://dx.doi.org/10.1115/imece1996-0058.

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Abstract The effect of varying interwall spacing on periodic fully developed turbulent How in a corrugated duct is studied numerically. The k-ε model is adopted for turbulent closure, and computations are performed for the ratio of the corrugation height to the interwall spacing ranging from 0.45 to 2.0, and for the corrugation angles of 30° and 45°. The Reynolds number ranges from 500 to 7000 while the Prandtl number is 0.7. The numerical procedure and implementation of the k-ε model is validated by comparing numerical results with the experimental data directly. The results are also compared

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Fakoor Pakdaman, Mohammad, Pejman Zohorian Izadi, Mohammad Javadinia Azari, and Amir Lashkari. "Experimental Investigation on the Heat Transfer of a Portable Forced-Convection Solar Air Heater." In ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2010. http://dx.doi.org/10.1115/esda2010-24476.

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A cross-corrugated portable forced-convection solar air heater has been designed, fabricated, and developed. A wavelike bottom plate has been positioned crosswise to the air flow while rectangular baffles have been attached to the flat-plate absorber. The relative corrugation height, (e/Dh) ranges between 0.24 and 0.4, and relative baffles distance (l/L) varies between 0.21 and 0.48. The air flow rate in the heater duct has been varied in the range of 0.001 kgs−1 to 0.01kgs−1 (Reynolds number ranges from 350 to 3500), while other thermal specifications such as inlet, outlet, and plate temperat

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Du, L. X., M. Zeng, and Q. W. Wang. "A Simplified CFD Model With Multi-Periodic Boundary Conditions for Cross Wavy Channels." In ASME 2011 Turbo Expo: Turbine Technical Conference and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/gt2011-46050.

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The compact and efficient primary surface heat exchangers are often used as recuperators in microturbine regenerative cycle systems. In the present study, the flow and the heat transfer performance of the cross wavy (CW) ducts have been simulated by three-dimensional models. The hydrodynamic diameters of the models are 1.689mm. Navier-Stokes and energy equations are solved by COMSOL3.5. Because one single wavy cell will overlap more than one adjacent channel, multi-periodic boundary conditions are especially adopted to simplify the calculations. Multi-periodic boundary conditions have been pro

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Ekpotu, Wilson, Queen Nwabueze, Joseph Akintola, Martins Obialor, and Idongesit Ansa. "A Novel Approach to Post-Combustion Carbon Capture Processes in Natural Gas Plants By Reduction of Solvent Regeneration Time." In SPE Canadian Energy Technology Conference. SPE, 2022. http://dx.doi.org/10.2118/208887-ms.

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Abstract Objectives/Scope Carbon Capture processes have been utilized in various sectors, but limitations in its large parasitic load have been observed in its use in Natural Gas Process Plants, and that is mostly associated with the energy penalty incurred during its processes. The energy penalty is mainly caused by the solvent regeneration in the stripper column, the CO2 compression process, and the low amount of CO2 levels in the combustion flue gas, which is usually less than 15% (7-14 % for coal-fired and as low as 3% for gas-fired). This research work, therefore, has the objective of sol

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Jain, Ishita, and S. Sarkar. "Effect of Surface Corrugations on Laminar and Transitional Flows." In ASME Turbo Expo 2022: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/gt2022-81910.

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Abstract The effect of surface roughness on spatially developing transitional flow field is discussed in the present study by carrying out highly resolved Large Eddy Simulations (LES). The surface modification considered here is the two-dimensional rectangular ribs embedded in the flat plate, resulting into the formation of transverse spanwise cavities with pitch as λ = 3k, where k is the roughness height. The results are simulated for the three imposed inlet conditions, while the Reynolds number based on momentum thickness is 150, 300, and 500. The instantaneous and time-averaged flow feature

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Watkins, Ryan T., John A. Shaw, Nicolas Triantafyllidis, and David Grummon. "Design Study of Shape Memory Alloy Honeycombs for Energy Absorption." In ASME 2011 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. ASMEDC, 2011. http://dx.doi.org/10.1115/smasis2011-5091.

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Shape memory alloys (SMA), which exhibit the shape memory effect and superelasticity, utilize a reversible solid-solid state phase transformation to recover large strains. Likewise, honeycomb structures under in-plane loading take advantage of deformation kinematics to amplify the structure’s macroscopic strain. The combination of a sparse honeycomb structure made of an SMA material can recover larger deformations than would be possible with either conventional metal honeycombs or monolithic SMAs. NiTi honeycombs and corrugations of about 5% relative density with robust properties were demonst

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