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Keywords: flow control
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Proceedings Papers

Proc. ASME. FEDSM2022, Volume 1: Fluid Applications and Systems (FASTC); Fluid Measurement and Instrumentation (FMITC); Fluid Mechanics (FMTC), V001T03A028, August 3–5, 2022
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2022-87647
... of a simplified geometry such as the Ahmed body can improve the geometric optimization of road vehicles for fuel economy improvement. Therefore, this paper examines the three-dimensional wake dynamics of a 28° slanted Ahmed body and proposes a flow control method for its drag reduction. This slanted angle...
Proceedings Papers

Proc. ASME. FEDSM2021, Volume 2: Fluid Applications and Systems; Fluid Measurement and Instrumentation, V002T03A025, August 10–12, 2021
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2021-65115
... Proceedings of the ASME 2021 Fluids Engineering Division Summer Meeting FEDSM2021 August 10-12, 2021, Virtual, Online FEDSM2021-65115 IMPROVEMENTS OF FLOW CONTROL WITH FLUID INJECTION FOR THE SUPPRESSION OF FLOW INSTABILITIES IN PUMP-TURBINES Sabri Deniz & Fabio Asaro Lucerne University of Applied...
Proceedings Papers

Proc. ASME. FEDSM2020, Volume 1: Fluid Applications and Systems; Fluid Measurement and Instrumentation, V001T01A040, July 13–15, 2020
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2020-20275
... pump turbine flow instabilities flow control water- and air injection Abstract This the second part of a two-part paper focusing on the flow instabilities of low-specific pump turbines. In this part, results of the flow control application with fluid injection (using both water and air...
Proceedings Papers

Proc. ASME. FEDSM2020, Volume 2: Fluid Mechanics; Multiphase Flows, V002T03A020, July 13–15, 2020
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2020-20457
... generalizable and represent previously undiscovered universal behavior. Keywords: biomimicry, biomimetics, shark skin, flow control, turbulent boundary layer, Couette flow NOMENCLATURE Simulated channel height Simulated channel length Denticle length Lang number Mass flow rate 0 Mass flow rate...
Proceedings Papers

Proc. ASME. FEDSM2020, Volume 2: Fluid Mechanics; Multiphase Flows, V002T03A024, July 13–15, 2020
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2020-20317
... polymer concentration to define the polymer properties. Keywords: polymer drag reduction, turbulent boundary layer, flow control, polyethylene oxide, experimental 1. INTRODUCTION The ability of a polymer solution to reduce the drag within a turbulent flow is dependent on the polymer type, its molecular...
Proceedings Papers

Proc. ASME. AJKFluids2019, Volume 4: Fluid Measurement and Instrumentation; Micro and Nano Fluid Dynamics, V004T04A006, July 28–August 1, 2019
Publisher: American Society of Mechanical Engineers
Paper No: AJKFluids2019-5377
... of the backflow. Additionally, the fluctuation of the jet boundary layer became stronger as the duty ratio was increased. From these factors, it is considered that the backflow by the plasma induced flow effectively works on the diffusion of the jet structure. jet mixing plasma actuator flow control...
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
... of steady wind with the same mean velocity 7 m/s. wind tunnel flow control natural wind embedded system turbulence wind turbine power coefficient AN EXPERIMENTAL STUDY OF HORIZONTAL AXIS WIND TURBINE PERFORMANCE IN ARTIFICIAL NATURAL WIND BY AN ACTIVE CONTROL MULTI-FAN TURBULENT WIND TUNNEL...
Proceedings Papers

Proc. ASME. AJKFluids2019, Volume 2: Computational Fluid Dynamics, V002T02A045, July 28–August 1, 2019
Publisher: American Society of Mechanical Engineers
Paper No: AJKFluids2019-4724
... numerical simulation flow control oscillating cylinder neural network algorithm genetic algorithm Abstract Flow behaviors of a downstream object can be affected significantly by an upstream object in close proximity. This concept is used for flow control in this study to maximize...
Proceedings Papers

Proc. ASME. AJKFluids2019, Volume 1: Fluid Mechanics, V001T01A005, July 28–August 1, 2019
Publisher: American Society of Mechanical Engineers
Paper No: AJKFluids2019-5121
... the freedom of design. Therefore, novel flow control technology is desired to enable small aerodynamic drag with ex- cellent design. In the present study, a dielectric barrier discharge plasma actuator is installed on a simplified vehicle model with the round-shaped rear end to control the flow around...
Proceedings Papers

Proc. ASME. FEDSM2012, Volume 1: Symposia, Parts A and B, 909-913, July 8–12, 2012
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2012-72256
... Vertical fence wake Separation bubble Vortex generator jet Flow control The separated shear flows developed from the vertical fence was manipulated by using the vortex generator jets located in front of the fence. The experiments were carried out in a circulating water channel...
Proceedings Papers

Proc. ASME. FEDSM2010, ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting: Volume 1, Symposia – Parts A, B, and C, 1179-1188, August 1–5, 2010
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM-ICNMM2010-30437
... in an adequately long axial extent. Slender body of revolution; High-incidence aerodynamics; Asymmetric vortical flow; Minute jet; Flow control INTRODUCTION The flow around slender body of revolution at incidence has been studied extensively [1-16]. It has been affirmed that the flow in high incidence range...
Proceedings Papers

Proc. ASME. FEDSM2009, Volume 1: Symposia, Parts A, B and C, 1585-1591, August 2–6, 2009
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2009-78366
... bubble Pulsating jet Phase-averaged DPIV Flow control Proceedings of FEDSM2009 2009 ASME Fluids Engineering Division Summer Meeting and Exhibition August 2-5, 2009, Vail, Colorado, USA FEDSM2009-78366 EXPERIMENTAL STUDY OF THE FENCE WAKE MANIPULATION USING PULSATING JET In-Su Kang School...
Proceedings Papers

Proc. ASME. FEDSM2009, Volume 1: Symposia, Parts A, B and C, 1557-1565, August 2–6, 2009
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2009-78136
... Blunt Trailing Edge Airfoil Wake Instability Numerical Simulation Flow Visualization Flow Control Streamwise Vortices Vortex shedding from the base of two dimensional bluff bodies is accompanied by three dimensional wake instabilities. These instabilities manifest as streamwise...
Proceedings Papers

Proc. ASME. FEDSM2008, Volume 1: Symposia, Parts A and B, 493-497, August 10–14, 2008
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2008-55076
... 10 07 2009 The objective of the present research is to study the effectiveness of steady and pulsed vortex generator jets in reducing inlet flow distortion and in improving pressure recovery by effective secondary flow control in uniform inflow Serpentine duct diffuser...
Proceedings Papers

Proc. ASME. FEDSM2007, Volume 2: Fora, Parts A and B, 1477-1478, July 30–August 2, 2007
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2007-37700
..., fabricate and test a MEMS shear stress sensor for hypersonic aeropropulsion test and evaluation applications. MEMS Sensor Shear Stress Supersonic Flow Hypersonic Flow High Temperature Propulsion Flow Control Boundary Layer Separation New York City, NY, USA A e c M n c s h a a c h c c w fa...
Proceedings Papers

Proc. ASME. FEDSM2007, Volume 2: Fora, Parts A and B, 1347-1352, July 30–August 2, 2007
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2007-37410
... layer oscillation modes and recirculating vortices in the cavity. We also demonstrate that oscillations are suppressed by our control method using moving bottom wall. Cavity Flow Self-sustained Oscillations Incompressible Flow CFD Analysis Flow Control Proceedings of FEDSM2007 5th Joint...
Proceedings Papers

Proc. ASME. FEDSM2002, Volume 1: Fora, Parts A and B, 1339-1344, July 14–18, 2002
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2002-31041
... to the surface with a relative good efficiency when compared with other actuators. 04 03 2009 electroaerodynamics flow control flat plate Proceedings of ASME FEDSM 02: FLOW INSTABILITIES AND CONTROL FORUM 2002 Fluids Engineering Division Summer Meeting FLA AT ABSTRACT Th actuator The dev...
Proceedings Papers

Proc. ASME. FEDSM2002, Volume 1: Fora, Parts A and B, 1443-1448, July 14–18, 2002
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2002-31059
... opposition control is carried out with appropriate timing. 04 03 2009 turbulence boundary layers flow control drag reduction Proceedings of ASME FEDSM'02 2002 ASME Fluids Engineering Division Summer Meeting RB controlled with a relatively simple control scheme. For example, Choi et al...
Proceedings Papers

Proc. ASME. HT-FED2004, Volume 4, 891-901, July 11–15, 2004
Publisher: American Society of Mechanical Engineers
Paper No: HT-FED2004-56825
... synthetic jets crossflow rectangular orifices flow control mixing Results of an experimental investigation on isolated synthetic jets in crossflow from rectangular orifices of different aspect ratio and orientation are presented. Three aspect ratios, AR = 4, 8, and 16, with pitch α...
Topics: Jets, Orifices
Proceedings Papers

Proc. ASME. FEDSM2003, Volume 1: Fora, Parts A, B, C, and D, 2673-2680, July 6–10, 2003
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2003-45230
... n /2. 05 02 2009 Coaxial Jet Excited Jet Flow Control Phase Difference Flow Visualization Particle Image Velocimetry Proceedings of FEDSMí03 4TH ASME_JSME Joint Fluids Engineering Conference Honolulu, Hawaii, USA, July 6-11, 2003 velocities were performed on a coaxial jet...