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Keywords: turbulence
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Proceedings Papers

Proc. ASME. FEDSM2022, Volume 2: Multiphase Flow (MFTC); Computational Fluid Dynamics (CFDTC); Micro and Nano Fluid Dynamics (MNFDTC), V002T05A026, August 3–5, 2022
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2022-87742
...-resolving simulations using spectral element numerical methods. computational fluid dynamics spectral element method turbulence large-eddy simulation wall functions Proceedings of the ASME 2022 Fluids Engineering Division Summer Meeting FEDSM2022 August 3-5, 2022, Toronto, Ontario, Canada...
Proceedings Papers

Proc. ASME. FEDSM2020, Volume 2: Fluid Mechanics; Multiphase Flows, V002T03A034, July 13–15, 2020
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2020-20006
... turbulence propulsion airfoils entrainment thrust augmentation shear layer propagation slot jets coanda effects Abstract The UAV industry is booming with investments in research and development on improving UAV systems. Current UAV machines are developed according to the quadcopter...
Proceedings Papers

Proc. ASME. FEDSM2020, Volume 3: Computational Fluid Dynamics; Micro and Nano Fluid Dynamics, V003T05A057, July 13–15, 2020
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2020-20344
... unsteady turbine turbulence data assimilation Abstract Turbulence is one of the most important phenomena in fluid dynamics. In general, turbulent phenomena can be resolved more clearly with Large Eddy Simulation (LES) compared with Unsteady Reynolds Averaged Navier-Stokes (URANS...
Proceedings Papers

Proc. ASME. AJKFluids2019, Volume 2: Computational Fluid Dynamics, V002T02A077, July 28–August 1, 2019
Publisher: American Society of Mechanical Engineers
Paper No: AJKFluids2019-5261
... artificial neural network channel flow direct numerical simulation multi-layer perceptron turbulence U-Net viscoelastic fluid Abstract We tested Artificial Neural Networks (ANNs) to predict a fully-developed turbulent channel flow of a viscoelastic fluid in preparation...
Proceedings Papers

Proc. ASME. AJKFluids2019, Volume 1: Fluid Mechanics, V001T01A073, July 28–August 1, 2019
Publisher: American Society of Mechanical Engineers
Paper No: AJKFluids2019-5229
...THE INFLUENCE OF FLEXIBLE STRIP HEIGHT ON CONVECTIVE HEAT TRANSFER ENHANCEMENT Yang Yang Turbulence & Energy Lab University of Windsor Windsor, ON, Canada David S-K. Ting Turbulence & Energy Lab University of Windsor Windsor, ON, Canada Steve Ray Essex Energy Oldcastle, ON, Canada ABSTRACT A 12.7...
Proceedings Papers

Proc. ASME. AJKFluids2019, Volume 5: Multiphase Flow, V005T05A011, July 28–August 1, 2019
Publisher: American Society of Mechanical Engineers
Paper No: AJKFluids2019-4781
... on mean velocity and void ratio field, statistical turbulent quantities in three different cavitation levels with the same reference velocity. A type of cavitation associated with a weak but persistent re-entrant jet is described. The comparison between the cavitation and the noncavitating flow shows...
Proceedings Papers

Proc. ASME. AJKFluids2019, Volume 4: Fluid Measurement and Instrumentation; Micro and Nano Fluid Dynamics, V004T04A007, July 28–August 1, 2019
Publisher: American Society of Mechanical Engineers
Paper No: AJKFluids2019-4667
... Abstract Recent developments in wind turbine design research account for the effects of velocity fluctuation and the characteristic turbulence of the installation location site to improve performance. For the design, a low-cost natural wind generator and a laboratory-based performance...
Proceedings Papers

Proc. ASME. FEDSM2013, Volume 1C, Symposia: Gas-Liquid Two-Phase Flows; Industrial and Environmental Applications of Fluid Mechanics; Issues and Perspectives in Automotive Flows; Liquid-Solids Flows; Multiscale Methods for Multiphase Flow; Noninvasive Measurements in Single and Multiphase Flows; Numerical Methods for Multiphase Flow; Transport Phenomena in Energy Conversion From Clean and Sustainable Resources; Transport Phenomena in Materials Processing and Manufacturing Processes; Transport Phenomena in Mixing; Turbulent Flows: Issues and Perspectives, V01CT18A005, July 7–11, 2013
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2013-16243
... estuary sediment simulated bed natural bed LDA mini flume turbulence This paper reports an experimental assessment of various alternatives to construct an artificial bed appropriate to duplicate, in laboratory, the conditions relevant to marine sediment erosion. The main goal...
Proceedings Papers

Proc. ASME. FEDSM2012, Volume 1: Symposia, Parts A and B, 1551-1560, July 8–12, 2012
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2012-72010
... CFD Turbulence Scale-Adaptive Simulation massive separation airfoil The Scale Adaptive Simulation (SAS) models can keep standard RANS capabilities in stable flow regions but resolve turbulent structures in unsteady regions of flow field like LES. This RANS/LES property of SAS model...
Proceedings Papers

Proc. ASME. FEDSM2012, Volume 2: Fora, 155-160, July 8–12, 2012
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2012-72399
... in an inclined channel with cold walls under turbulent flow regime was studied. The cases that the flow is downward and upward, and when the flow is warmer than the walls were analyzed. The V2F turbulence model was used in the computational model so that the intensity of the turbulence velocity fluctuations...
Proceedings Papers

Proc. ASME. FEDSM2012, Volume 1: Symposia, Parts A and B, 1359-1368, July 8–12, 2012
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2012-72092
... The Immersed-Boundary Method is coupled to an incompressible-flow RANS solver, based on a two-equation turbulence model, to perform unsteady numerical simulations of airflow past the NACA-0012 airfoil for several angles of attack and Reynolds numbers of 5.0×10 5 and 1.8×10 6 . Qualitative...
Proceedings Papers

Proc. ASME. FEDSM2010, ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting: Volume 1, Symposia – Parts A, B, and C, 1011-1022, August 1–5, 2010
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM-ICNMM2010-31068
... Reynolds number. The pressure measurement inside the combustor at different locations was performed by the piezo-resistive pressure sensors. The velocity measurement inside the combustor was carried out by a hot wire probe. The rms (root mean square) velocity and turbulence intensity distributions...
Proceedings Papers

Proc. ASME. FEDSM2010, ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting: Volume 1, Symposia – Parts A, B, and C, 1617-1621, August 1–5, 2010
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM-ICNMM2010-30974
... CFD Pebble Bed Modular Reactor (PBMR) pressure drop turbulence turbulence models fluid flow A steady state computational study was done to obtain the pressure drop estimation in different packed bed geometries, and describe the fluid flow characteristics for such complex structures...
Proceedings Papers

Proc. ASME. FEDSM2010, ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting: Volume 1, Symposia – Parts A, B, and C, 2201-2204, August 1–5, 2010
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM-ICNMM2010-30601
.... The results were compared with experimental measurements, and carcinogenicity of these fibers was discussed. Keywords: Asbestos, elongated mineral particles (EMP), fiber, transport, deposition, tracheobronchial tree, numerical simulation, airway bifurcation model, turbulence. INTRODUCTION Occupational...
Proceedings Papers

Proc. ASME. FEDSM2009, Volume 1: Symposia, Parts A, B and C, 1865-1874, August 2–6, 2009
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2009-78072
... 1 Copyright © 2009 by ASME Proceedings of FEDSM2009 2009 ASME Fluids Engineering Division Summer Meeting August 2-6, 2009, Vail, Colorado, USA FEDSM2009-78072 DIRECT NUMERICAL SIMULATIONS OF COLLIDING PARTICLES SUSPENDED IN HOMOGENEOUS ISOTROPIC TURBULENCE M. Ernst Institut für Verfahrenstechnik...
Proceedings Papers

Proc. ASME. FEDSM2009, Volume 1: Symposia, Parts A, B and C, 1669-1677, August 2–6, 2009
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2009-78278
... and Reynolds number was studied. It was observed that the turbulent intensity increased with the swirling flow and decreased with an increase in the chamber pressure. The exit choking reinforced the recirculation. The velocity distributions were corroborated by comparing the frequency spectrum with the wall...
Proceedings Papers

Proc. ASME. FEDSM2009, Volume 1: Symposia, Parts A, B and C, 2071-2084, August 2–6, 2009
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2009-78010
... Experiment Simulation Air Cabinet Velocity Turbulence Infiltration Rate Tilted air jet planes are used as barriers between two environments of different temperature, humidity and quality. Entrainment of one environment fluid (air) into the curtain by shear layer mixing contributes...
Proceedings Papers

Proc. ASME. FEDSM2009, Volume 1: Symposia, Parts A, B and C, 1911-1920, August 2–6, 2009
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2009-78146
... details are discussed. Cyclone separator pressure drop turbulence Reynolds stress model granular mixture model entropy generation 1 Copyright © 2009 by ASME Proceedings of FEDSM2009 ASME 2009 Fluids Engineering Division Summer Meeting August 2-5, 2009, Vail, Colorado USA FEDSM2009-78146 CFD...
Proceedings Papers

Proc. ASME. FEDSM2009, Volume 1: Symposia, Parts A, B and C, 725-732, August 2–6, 2009
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2009-78326
... on the mesh spacing. In many situations, this can be overcome by simply refining the mesh, so that the wavelength of the structures becomes much larger than the mesh spacing, and the discretization errors become again negligible. However, in some other cases, like in Large-Eddy Simulations of highly turbulent...
Proceedings Papers

Proc. ASME. FEDSM2008, Volume 1: Symposia, Parts A and B, 1025-1029, August 10–14, 2008
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2008-55360
... 10 07 2009 In this paper an effective numerical technique is presented to model turbulent motion of a standing surface wave in a tank. The equations of motion for turbulent boundary layers at the solid surfaces are coupled with the potential flow in the bulk of the fluid, and a mixed...