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Keywords: LES
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Proceedings Papers

Proc. ASME. FEDSM2022, Volume 1: Fluid Applications and Systems (FASTC); Fluid Measurement and Instrumentation (FMITC); Fluid Mechanics (FMTC), V001T01A013, August 3–5, 2022
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2022-87197
...Proceedings of the ASME 2022 Fluids Engineering Division Summer Meeting FEDSM2022 August 3-5, 2022, Toronto, Ontario, Canada FEDSM2022-87197 LES INVESTIGATION OF POLLUTION DISPERSION IN A STREET CANYON Jedhathai (Vicky) Boontanom and Danesh Tafti Department of Mechanical Engineering, Virginia Tech...
Topics: Pollution, Roads
Proceedings Papers

Proc. ASME. FEDSM2022, Volume 1: Fluid Applications and Systems (FASTC); Fluid Measurement and Instrumentation (FMITC); Fluid Mechanics (FMTC), V001T03A020, August 3–5, 2022
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2022-87552
... to the trough, significantly reducing the film mixing process in the crest area. However, the mixing in the trough area does not increase significantly, which improves the overall film cooling effectiveness. Keywords: Whisker lip, Film cooling, Vortex, LES NOMENCLATURE BR Blowing ratio Lip thickness...
Proceedings Papers

Proc. ASME. FEDSM2021, Volume 1: Aerospace Engineering Division Joint Track; Computational Fluid Dynamics, V001T02A051, August 10–12, 2021
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2021-65798
... for atmospheric turbulence using U Characteristic length scale Large-Eddy Simulations (LES) and analyze characteristic structures arising from these. These could include contours of L velocity magnitude, as well as of levels of a passive scalar introduced into the simulated flows. We will then identify features 1...
Proceedings Papers

Proc. ASME. FEDSM2021, Volume 1: Aerospace Engineering Division Joint Track; Computational Fluid Dynamics, V001T02A035, August 10–12, 2021
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2021-65812
... the velocity to the 1. PROBLEM DEFINITION vertical distance (velocity profile). We will perform a regression analysis to fit data from Large-Eddy Simulations (LES) and We wish to investigate eddy sizes' distribution inside an apply Fourier transformation from a time domain to a frequency atmospheric turbulence...
Proceedings Papers

Proc. ASME. FEDSM2021, Volume 3: Fluid Mechanics; Micro and Nano Fluid Dynamics; Multiphase Flow, V003T05A027, August 10–12, 2021
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2021-65494
... Abstract Flow over arrays of cubes is an extensively studied model problem for rough wall turbulent boundary layers. While considerable research has been performed in computationally investigating these topologies using DNS and LES, the ability of sublayer-resolved RANS to predict the bulk flow...
Proceedings Papers

Proc. ASME. FEDSM2020, Volume 3: Computational Fluid Dynamics; Micro and Nano Fluid Dynamics, V003T05A026, July 13–15, 2020
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2020-20336
... A LES STUDY OF VENTILATION FLOW THROUGH A 3-D ROOM FITTED WITH SOLAR CHIMNEY B. Phuoc Huynh University of Technology, Sydney Sydney, NSW, Australia ABSTRACT Solar chimney (thermal chimney) is a device which absorbs solar radiation to heat the air. The heated air, becoming buoyant, rises through...
Proceedings Papers

Proc. ASME. FEDSM2020, Volume 2: Fluid Mechanics; Multiphase Flows, V002T03A041, July 13–15, 2020
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2020-20254
... LES CFD atmospheric turbulence Abstract We have simulated atmospheric turbulence at several instances of possible laser propagation paths and turbulent flow regime regions within the area of interest. At a control volume that is in between two Hawaii mountains. We have applied...
Proceedings Papers

Proc. ASME. AJKFluids2019, Volume 4: Fluid Measurement and Instrumentation; Micro and Nano Fluid Dynamics, V004T04A012, July 28–August 1, 2019
Publisher: American Society of Mechanical Engineers
Paper No: AJKFluids2019-5493
... and both turbines operating in series. The field measurements include meteorological evaluation tower (MET) data and light detection and ranging (lidar) data. Computations were performed by coupling large eddy simulations (LES) in the three-dimensional, transient code Nalu-Wind with engineering actuator...
Proceedings Papers

Proc. ASME. AJKFluids2019, Volume 2: Computational Fluid Dynamics, V002T02A052, July 28–August 1, 2019
Publisher: American Society of Mechanical Engineers
Paper No: AJKFluids2019-4920
... documenting the effect of imposed spanwise gradient. The objective of this study is to evaluate turbulent heat flux predictions for three different classes of modeling approach: Reynolds-averaged Navier-Stokes (RANS), large-eddy simulation (LES), and hybrid RANS-LES. Results are compared to available DNS data...
Proceedings Papers

Proc. ASME. AJKFluids2019, Volume 3A: Fluid Applications and Systems, V03AT03A012, July 28–August 1, 2019
Publisher: American Society of Mechanical Engineers
Paper No: AJKFluids2019-5521
... Abstract Combustion models can have a significant impact on flame simulations. While solving finite rate chemistry typically yields more accurate predictions, they depend significantly on the detailed kinetics mechanism used. To demonstrate the effect, Large Eddy Simulation (LES) of Sandia...
Proceedings Papers

Proc. ASME. AJKFluids2019, Volume 1: Fluid Mechanics, V001T01A053, July 28–August 1, 2019
Publisher: American Society of Mechanical Engineers
Paper No: AJKFluids2019-5506
.... Keywords: CFD, Turbulence Model, LES, HHSTT, Hypersonic, Supersonic, High-Speed Test Track INTRODUCTION Operated by the 846th Test Squadron (TS), the Holloman High-Speed Test Track (HHSTT) at the Holloman Air Force Base (HAFB), New Mexico is the world's premier facility for testing full-scale high-speed...
Proceedings Papers

Proc. ASME. FEDSM2012, Volume 1: Symposia, Parts A and B, 291-295, July 8–12, 2012
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2012-72362
... of the building model matched with those measured by the pressure taps, some aspects of the airflow velocity profile were not in agreement with the PIV data. The computational modeling of the wind flow around the building was then performed using the Large-Eddy Simulation (LES) approach. The mean velocity...
Proceedings Papers

Proc. ASME. AJK2011, ASME-JSME-KSME 2011 Joint Fluids Engineering Conference: Volume 1, Symposia – Parts A, B, C, and D, 507-514, July 24–29, 2011
Publisher: American Society of Mechanical Engineers
Paper No: AJK2011-06091
...-rotating fans for heat exchange, and the method of large eddy simulation (LES) and FW-H acoustic model have been used to simulate the distribution of noise field. The frequency spectrum from different sound sources has been analyzed, and the optimal ranges of the distance and gap between rotors have been...
Proceedings Papers

Proc. ASME. AJK2011, ASME-JSME-KSME 2011 Joint Fluids Engineering Conference: Volume 1, Symposia – Parts A, B, C, and D, 203-209, July 24–29, 2011
Publisher: American Society of Mechanical Engineers
Paper No: AJK2011-06041
... noise FH-W LES Proceedings of ASME-JSME-KSME Joint Fluids Engineering Conference 2011 AJK2011-FED July 24-29, 2011, Hamamatsu, Shizuoka, JAPAN AJK2011-06041 EXPERIMENTAL AND NUMERICAL INVESTIGATION OF BLADES EFFECT ON AERODYNAMIC PERFORMANCE OF SMALL AXIAL FLOW FAN Zhang Li Faculty...
Proceedings Papers

Proc. ASME. FEDSM2010, ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting: Volume 1, Symposia – Parts A, B, and C, 289-293, August 1–5, 2010
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM-ICNMM2010-30768
... as the Large Eddy Simulations (LES). Particular attention was given to the case with Reynolds number of 80,000 for which the experimental data of Hussein and Matinuzzi [1] are available. The nature of the 3D wakes behind the cube as well as the vortices in front and at the back of the cube were investigated...
Proceedings Papers

Proc. ASME. FEDSM2010, ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting: Volume 1, Symposia – Parts A, B, and C, 2549-2555, August 1–5, 2010
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM-ICNMM2010-30739
... of the Flow Field around a Low Rise Building Using LES Technique S.S. Motallebi Hasankola School of Mechanical Engineering Shiraz University, Shiraz, Iran O. Abouali School of Mechanical Engineering Shiraz University, Shiraz, Iran abouali@shirazu.ac.ir ABSTRACT In this research the flow field obtained by LES...
Proceedings Papers

Proc. ASME. FEDSM2002, Volume 2: Symposia and General Papers, Parts A and B, 597-604, July 14–18, 2002
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2002-31370
... A grid-free method for the LES of turbulent incompressible flow is presented. The computational engine is based on the Lagrangian Vortex Element Method to account for the dynamics of the resolved vorticity field and the Vorticity Redistribution Method (VRM) to account for turbulent diffusion...
Proceedings Papers

Proc. ASME. FEDSM2002, Volume 1: Fora, Parts A and B, 1173-1178, July 14–18, 2002
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2002-31352
... to the wall effect. 04 03 2009 cavity flow compressible flow LES dynamic model Proceedings of ASME FEDSM’02 2002 ASME Fluids Engineering Division Summer Meeting Montreal, Quebec, Canada, July 14-18, 2002 IO s formul the mo the vo coeffic betwee stream near th INTRO It is open c cavity...
Proceedings Papers

Proc. ASME. HT-FED2004, Volume 2, Parts A and B, 715-725, July 11–15, 2004
Publisher: American Society of Mechanical Engineers
Paper No: HT-FED2004-56356
... Turbulence modeling convective heat transfer RANS T-RANS LES hybrid RANS-LES The paper provides a view of some developments and a perspective on the future role of the Reynolds-averaged Navier-Stokes (RANS) approach in the computation of turbulent flows and heat transfer in competition...
Proceedings Papers

Proc. ASME. HT-FED2004, Volume 2, Parts A and B, 391-399, July 11–15, 2004
Publisher: American Society of Mechanical Engineers
Paper No: HT-FED2004-56165
...-56165London SW7 2BY UK s.lardeau@imperial.ac.uk F-86962 Futuroscope Chasseneuil jean-paul.bonnet@lea.univ-poitiers.fr Keywords: Inflow conditions, LES, Linear Stochastic Estimation, Proper Orthogonal Decomposition ABSTRACT Due to the difficulty of specifying realistic inflow conditions for numerical...