Volume 19, Issue 9 (September 2019)                   Modares Mechanical Engineering 2019, 19(9): 2111-2120 | Back to browse issues page

‎ 20.1001.1.10275940.1398.19.9.10.0

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Investigation of Aerodynamic and Heat Transfer Performance of Cylinders Using Plasma Actuators
M. Tahani * 1, M. Kazemi2 , Z. Babaie2
1- Aerospace Engineering Department, New Sciences & Technologies Faculty, University of Tehran, Tehran, Iran , m.tahani@ut.ac.ir
2- Aerospace Engineering Department, New Sciences & Technologies Faculty, University of Tehran, Tehran, Iran
Abstract:   (6926 Views)
Today, one of the useful methods of flow control, especially external aerodynamics, is plasma DBD actuators. In this study, the effect of plasma DBD actuators on cylinders in tandem arrangement is investigated. The actuators are considered on upstream cylinder. The cylinders are placed in distance (L/D) relative to each other. Investigation is done at two Reynolds number (100 and 200) with two different conditions of applying actuators. Cases with Vp-p=55kv and Vp-p=1kv are selected from references. The results of the present study are validated against the previous available experimental and numerical data and close agreement is found. Finite volume method is applied to solve equation of motion. Plasma actuators caused downstream cylinder experience upper values of drag coefficient and Nusselt number in all cases of study. Also, the growth of drag coefficient and Nusselt number are decreased by rising the Reynolds number, so that increasing the Nusselt number is 2% more at cases with Re=100 compared to cases with Re=200.
Keywords: Flow Control, Plasma Actuators, Bluff Body, Drag Coefficient, Nusselt Number
Full-Text [PDF 1503 kb]   (2032 Downloads)    
Article Type: Original Research | Subject: Aerodynamics
Received: 2018/05/22 | Accepted: 2019/01/29 | Published: 2019/09/1
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