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Journal of Applied Fluid Mechanics، جلد ۱۰، شماره ۳، صفحات ۸۸۹-۸۹۷
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| عنوان فارسی |
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| چکیده فارسی مقاله |
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| کلیدواژه‌های فارسی مقاله |
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| عنوان انگلیسی |
A Finite Volume Study on the Effects of Electro-Hydro-Dynamic Fluid Acceleration on Airflow Around a Cylinder at Low Reynolds Numbers |
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| چکیده انگلیسی مقاله |
Applying a high-voltage electric field in a flow (electro-hydrodynamics or EHD) is a highly effective approach to locally accelerate a fluid to a desired speed. In this paper, a finite volume implementation is used to study the fluid flow around a fixed cylinder at a low Reynolds number. Two pairs of wire-plate electrodes are used to generate the electric field for fluid acceleration. Two Reynolds numbers are considered: Re=40, 100. We show that by increasing the Reynolds number, the relative effect of EHD is decreased. Further, we study the change in drag force due to EHD actuation. Finally, we showed that under certain voltage, electrode placement and Reynolds number the EHD fluid acceleration does not increase the total drag on the cylinder and yet leads to an increase in the total streamwise momentum transfer by augmenting the velocity at the top of the boundary layer. |
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| کلیدواژه‌های انگلیسی مقاله |
Drag force,
Laminar boundary layer,
Electro,
hydro,
dynamic fluid acceleration |
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| نویسندگان مقاله |
G. Tathiri |
Department of Engineering, Zanjan Branch, Islamic Azad University, Zanjan, Iran
H. Parishani |
Department of Earth System Science, University of California Irvine, Irvine, CA 92697-3100, USA
E. Esmaeilzadeh |
Department of Mechanical Engineering, University of Tabriz, Tabriz, Iran
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| نشانی اینترنتی |
https://www.jafmonline.net/article_485_48355684ecd8d13309c455ba7abb1ac5.pdf |
| فایل مقاله |
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| کد مقاله (doi) |
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| زبان مقاله منتشر شده |
en |
| موضوعات مقاله منتشر شده |
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| نوع مقاله منتشر شده |
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