Experimental Investigation of the Effects of Arrangement of Vortex Generators on Behavior of a Vortical Flow around an Axisymmetric Body

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Farajollahi A.H.

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Paper Information

Journal: FLUID MECHANICS AND AERODYNAMICS JOURNAL Year:2019 | Volume:8 | Issue:1 (23) Page(s): 55-65

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Information Journal Paper

Title

Experimental Investigation of the Effects of Arrangement of Vortex Generators on Behavior of a Vortical Flow around an Axisymmetric Body

Author(s)

Farajollahi A.H. | Issue Writer Certificate

Keywords

Arrangement of Vortex GeneratorQ1

Co-RotatingQ1

Counter-RotatingQ1

Five-Hole ProbeQ1

Abstract

Axisymmetric bodies, like submarines, at high angles of attack have been characterized by three-dimensional boundary layer separation and large vortical structures, which have an important effect on forces and moments. This vortical flow affects acoustics, drag, and maneuverability. A suitable way to reduce the effect of this separated and vortical flow is to use vortex generators, which have different arrangements, such as counterrotating and Co-Rotating. The present study aimed to investigate flow field around a standard model employing vortex generators with different arrangements, using a Five-Hole Probe at 0° ≤ α ≤ 20° . Application of five hole probe method can help to precisely study the structure of vortical flow field. The results show that Counter-Rotating vortex generators do indeed significantly reduce the strength of vortex, size of cross-flow vortices, and drag force.

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APA: Copy

Farajollahi, A.H.. (2019). Experimental Investigation of the Effects of Arrangement of Vortex Generators on Behavior of a Vortical Flow around an Axisymmetric Body. FLUID MECHANICS AND AERODYNAMICS JOURNAL, 8(1 (23) ), 55-65. SID. https://sid.ir/paper/374019/en

Vancouver: Copy

Farajollahi A.H.. Experimental Investigation of the Effects of Arrangement of Vortex Generators on Behavior of a Vortical Flow around an Axisymmetric Body. FLUID MECHANICS AND AERODYNAMICS JOURNAL[Internet]. 2019;8(1 (23) ):55-65. Available from: https://sid.ir/paper/374019/en

IEEE: Copy

A.H. Farajollahi, “Experimental Investigation of the Effects of Arrangement of Vortex Generators on Behavior of a Vortical Flow around an Axisymmetric Body,” FLUID MECHANICS AND AERODYNAMICS JOURNAL, vol. 8, no. 1 (23) , pp. 55–65, 2019, [Online]. Available: https://sid.ir/paper/374019/en

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