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Keywords: drag
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Proceedings Papers

Proc. ASME. FEDSM2020, Volume 2: Fluid Mechanics; Multiphase Flows, V002T03A030, July 13–15, 2020
Paper No: FEDSM2020-20213
... at the rear base of a vehicle is a well-known technique used to alter the mean wake topology and achieve drag reduction[1]. For two dimensional bluff bodies, a multi-cavity is known to deliver better drag reduction at shorter cavity depths in comparison to a single cavity[2]. With this viewpoint, a numerical...
Proceedings Papers

Proc. ASME. AJKFluids2019, Volume 1: Fluid Mechanics, V001T01A087, July 28–August 1, 2019
Paper No: AJKFluids2019-5164
...FLOW VISUALIZATION AND DRAG MEASUREMENT OF A CIRCULAR CYLINDER IN COMPRESSIBLE FLOW AT REYNOLDS NUMBER BETWEEN 1000 AND 5000 K. Kusama1, A. Noguchi, T. Nagata Dept. of Aerospace Engineering, Tohoku University, Sendai,Japan A. Komuro Dept. of Electrical Engineering, Tohoku University, Sendai,Japan T...
Proceedings Papers

Proc. ASME. AJKFluids2019, Volume 2: Computational Fluid Dynamics, V002T02A047, July 28–August 1, 2019
Paper No: AJKFluids2019-5077
... turbines under these conditions, it is important to know how aerodynamic performance may be if micro and ultra-small-size gas turbines need to run under such conditions in the near future. computational fluid dynamics drag fluid-structure interaction lift unsteady flows vortices EXTRA-LOW...
Proceedings Papers

Proc. ASME. AJKFluids2019, Volume 3A: Fluid Applications and Systems, V03AT03A007, July 28–August 1, 2019
Paper No: AJKFluids2019-5476
...EFFECTS OF CYCLIST SIZE AND POSITION WITHIN FORMATIONS ON DRAG AND SIDE FORCE IN THE PRESENCE OF CROSS WINDS Ivaylo Nedyalkov1, Alec Cunningham, Adam Lovell University of New Hampshire Durham, NH ABSTRACT In the absence of cross-winds, a cyclist can expend up to 90% of their energy to overcome drag...
Proceedings Papers

Proc. ASME. AJKFluids2019, Volume 3B: Fluid Applications and Systems, V03BT03A008, July 28–August 1, 2019
Paper No: AJKFluids2019-4829
... characteristics can be used to design flow control features and evaluate operational impacts, while the performance data obtained can be used to assess the behavior of flow models for this application. Keywords: cavity flows, drag, multiphase flows, rotating fluids NOMENCLATURE CFD Computational Fluid Dynamics...
Proceedings Papers

Proc. ASME. FEDSM2013, Volume 1A, Symposia: Advances in Fluids Engineering Education; Advances in Numerical Modeling for Turbomachinery Flow Optimization; Applications in CFD; Bio-Inspired Fluid Mechanics; CFD Verification and Validation; Development and Applications of Immersed Boundary Methods; DNS, LES, and Hybrid RANS/LES Methods, V01AT02A001, July 7–11, 2013
Paper No: FEDSM2013-16013
... Navier-Stokes equations Elastodynamic equations FEM Lift Drag Vibration DOpElib deal.II NUMERICAL APPROXIMATION OF FLUID STRUCTURE INTERACTION (FSI) PROBLEM Bhuiyan Shameem Mahmood Ebna Hai Wissenschaftliche Mitarbeiter Helmut Schmidt University University of the Federal Armed Forces...
Proceedings Papers

Proc. ASME. FEDSM2009, Volume 1: Symposia, Parts A, B and C, 815-823, August 2–6, 2009
Paper No: FEDSM2009-78269
... 30 07 2010 The occurrence of cavitation on hydrofoils can cause undesirable effects such as a decrease in lift, and an increase in drag. The goal of this research is to investigate the effect of water injection on the lift and drag coefficient of a hydrofoil. An unsteady uniform flow...
Proceedings Papers

Proc. ASME. FEDSM2009, Volume 2: Fora, 327-333, August 2–6, 2009
Paper No: FEDSM2009-78173
... 30 07 2010 Undesirable effects such as a decrease in lift and an increase in drag can be the result of the occurrence of cavitation on hydrofoils. The goal of this research is to investigate the effect of water injection on the lift and drag coefficient of a 2-D hydrofoil. An unsteady...
Proceedings Papers

Proc. ASME. FEDSM2007, Volume 1: Symposia, Parts A and B, 487-497, July 30–August 2, 2007
Paper No: FEDSM2007-37116
... to account for hydrodynamic interactions between neighbouring bubbles. A wide range of values of gas hold-up has been considered so as to evaluate the detailed drag and mass transfer characteristics of swarms of bubbles to almost single bubble rising in power-law liquids. Extensive numerical results have...
Proceedings Papers

Proc. ASME. FEDSM2002, Volume 1: Fora, Parts A and B, 411-417, July 14–18, 2002
Paper No: FEDSM2002-31013
... 04 03 2009 The investigation results of the supercavitation for high speed motion of prolate axisymmetric bodies in water are presented. The cavitation drag forming and drag reduction problems are considered on base studying of the peculiarities of the supercavitation flows...
Proceedings Papers

Proc. ASME. FEDSM2003, Volume 2: Symposia, Parts A, B, and C, 1013-1015, July 6–10, 2003
Paper No: FEDSM2003-45479
... of the drag coefficient of a cylinder by use of a tissue paper. The other method is to feel a lift by use of a spoon and the city water issuing out of a faucet and estimate the coefficient of lift by utilizing the law of momentum. Engineering education Simple experiment Drag Lift 4TH ASM One...
Proceedings Papers

Proc. ASME. FEDSM2003, Volume 2: Symposia, Parts A, B, and C, 811-817, July 6–10, 2003
Paper No: FEDSM2003-45081
... depressions from shallow to deep, and an optimum value corresponding to minimum drag loss has been found. Using the balls with same optimum dimple depth, drag results show the tendency of decreasing as the dimple diameter increases from small to large until a limit is reached. Beyond this limit, drag...
Proceedings Papers

Proc. ASME. FEDSM2003, Volume 2: Symposia, Parts A, B, and C, 1255-1260, July 6–10, 2003
Paper No: FEDSM2003-45139
... for analysis. A two dimensional CFD analysis using commercial finite element based CFD software is used. The analysis has revealed that position and size of front and rear spoilers have significant impact on Lift i.e. vehicle stability and moderate impact on Drag i.e. Fuel consumption. The effect of speed...
Proceedings Papers

Proc. ASME. FEDSM2006, Volume 2: Fora, 709-714, July 17–20, 2006
Paper No: FEDSM2006-98349
... 08 09 2008 The breakdown of longitudinal vortices originating from the rear pillars of a simplified geometry of automobile vehicles is obtained with a view to reducing aerodynamic drag. Numerical experiments are conducted on an Ahmed body according to a computation code based...