Experimental and numerical study of control of flow separation of a symmetric airfoil with trapped vortex cavity

2017 ◽  
Author(s):  
Abdullah Bin Shahid ◽  
Mohammad Mashud
Keyword(s):  
Flow Separation ◽  
Numerical Study ◽  
Control Of Flow ◽  
Trapped Vortex

Jet Control of Flow Separation on Hydrofoils: Performance Evaluation Based on Force and Torque Measurements

2020 ◽  
Vol 29 (3) ◽  
pp. 424-442
Author(s):  
L. I. Maltsev ◽  
V. D. Dimitrov ◽  
E. M. Milanov ◽  
I. I. Zapryagaev ◽  
M. V. Timoshevskiy ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
Flow Separation ◽  
Torque Measurements ◽  
Jet Control ◽  
Control Of Flow

scholarly journals Flow Separation Control of Backward-Facing Step Airfoil NACA0015 by Blowing Technique

2019 ◽  
Vol 12 (1) ◽  
pp. 99-119
Author(s):  
Khuder N. Abed
Keyword(s):  
Flow Separation ◽  
Numerical Study ◽  
Leading Edge ◽  
Distribution Coefficients ◽  
Open Circuit ◽  
Experimental Investigations ◽  
Backward Facing Step ◽  
Ansys Fluent ◽  
Flow Separation Control ◽  
Naca 0015

The aim of this paper is to control the flow separation above backward-facing step (BFS) airfoil type NACA 0015 by blowing method. The flow field over airfoil has been studied both experimentally and computationally. The study was divided into two parts: a practical study through which NACA 0015 type with a backward -facing step (located at 44.4% c from leading edge) on the upper surface containing blowing holes parallel to the airfoil chord was used. The tests were done over two-dimensional airfoil in an open circuit suction subsonic wind tunnel with flow velocity 25m/s to obtain the pressure distribution coefficients. A numerical study was done by using ANSYS Fluent software version 16.0 on three models of NACA 0015, the first one has backward-facing step without blowing, the second with single blowing holes and the third have multi blowing holes technique. Both studies (experimental and numerical) were done at low Reynolds number (Re=4.4x105) and all models have chord length 0.27m.The experimental investigations and CFD simulations have been performed on the same geometry dimensions, it has been observed that the flow separation on the airfoil can be delayed by using  velocity blowing (30m/s) on the upper surface. The multi blowing holes with velocity improved the aerodynamics properties.The multi blowing holes and single blowing hole thesame effect onpressure distribution coefficients

Smart Control of Flow Separation around an Airfoil

2007 ◽  
pp. 578-583
Author(s):  
Hiroyuki Abe ◽  
Takehiro Nomura ◽  
Yoshihiro Kikushima ◽  
Hiro Yoshida
Keyword(s):  
Flow Separation ◽  
Smart Control ◽  
Control Of Flow

Active Control of Flow Separation on a Hemisphere with Plasma Forcing

2011 ◽  
Author(s):  
Haris Catrakis ◽  
Tsolag Apelian ◽  
Oleg Goushcha ◽  
Alejandro Puga ◽  
David Hartwig
Keyword(s):  
Active Control ◽  
Flow Separation ◽  
Control Of Flow
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