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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
... depth 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...
Proceedings Papers

Proc. ASME. AJKFluids2019, Volume 1: Fluid Mechanics, V001T01A087, July 28–August 1, 2019
Paper No: AJKFluids2019-5164
..., it becomes small as M increase 0.3 or more St is revealed to be decrease for Re of 2000–3000 with increasing M, and St increases at Re of 4000–5000. From the force measurement, drag coefficient (C d ) and pressure distribution on a circular cylinder (C p ) obtained. The effect of M on C d does not depend...
Proceedings Papers

Proc. ASME. AJKFluids2019, Volume 2: Computational Fluid Dynamics, V002T02A047, July 28–August 1, 2019
Paper No: AJKFluids2019-5077
... 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 REYNOLDS NUMBER VANE...
Proceedings Papers

Proc. ASME. AJKFluids2019, Volume 3A: Fluid Applications and Systems, V03AT03A007, July 28–August 1, 2019
Paper No: AJKFluids2019-5476
... Abstract In the absence of cross-winds, a cyclist can expend up to 90% of their energy to overcome drag and can save up to 30% of that energy if riding behind another cyclist. The aerodynamic forces acting on cyclists in the presence of cross wind have not been studied in much detail...
Proceedings Papers

Proc. ASME. AJKFluids2019, Volume 3B: Fluid Applications and Systems, V03BT03A008, July 28–August 1, 2019
Paper No: AJKFluids2019-4829
... by the second stage impeller pump out vanes. These observed 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. cavity flows drag multiphase flows...
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
...- tions, Elastodynamic equations, FEM, Lift, Drag, Vibration, DOpElib, deal.II. NOMENCLATURE Lp(X) Banach space W m,p(X) Sobolev space Hm(X) Hilbert space L2(X) Lebesque space V X Dual of VX A bounded reference domain of the fluid structure interaction problem at time t = 0 A bounded domain...
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
... 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 for cavities with given pressure...
Proceedings Papers

Proc. ASME. FEDSM2003, Volume 2: Symposia, Parts A, B, and C, 1013-1015, July 6–10, 2003
Paper No: FEDSM2003-45479
... that experiments become important. Furthermore, experiments are very fruitful for beginners to feel the motion of fluid actually. This report presents a few methods for the aim that undergraduates do simple experiments in their class or at their homes. One method is a measurement of the drag coefficient...
Proceedings Papers

Proc. ASME. FEDSM2003, Volume 2: Symposia, Parts A, B, and C, 811-817, July 6–10, 2003
Paper No: FEDSM2003-45081
... 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 coefficient will remain...
Proceedings Papers

Proc. ASME. FEDSM2003, Volume 2: Symposia, Parts A, B, and C, 1255-1260, July 6–10, 2003
Paper No: FEDSM2003-45139
.... 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...