A CFD analysis of the effects of injection and suction through a perforated square cylinder on some thermo-fluid parameters
Publish place: Journal of Computational and Applied Research in Mechanial Engineering، Vol: 11، Issue: 1
Publish Year: 1400
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_JCARME-11-1_003
تاریخ نمایه سازی: 12 مهر 1400
Abstract:
The effects of uniform injection and suction through the surfaces of a perforated square cylinder on the vortex shedding, heat transfer and some aerodynamic parameters have been investigated numerically. The finite-volume method has been used for solving the Navier-Stokes equations for incompressible and turbulent near-wake flow ( ) with the k-ɛ turbulence model equations. To find the optimum conditions, the effects of injection and suction through the front surface (case Ⅰ), the rear surface (case Ⅱ), top-bottom surfaces (case Ⅲ) and all surfaces (case Ⅳ) with various injection/suction coefficient G are studied. The results reveal that parameters such as pressure and drag coefficients and Nusselt number are influenced drastically in some cases as well as flow field parameters. For instance, the maximum reduction of the drag coefficient occurs at case Ⅳ while the maximum increase and reduction of Nu number occur at for all cases about ۴۶% and ۳۲%, ۶۱% and ۶۳%, ۹۲% and ۶۰% and ۱۸۰% and ۱۱۵% for cases Ⅰ, Ⅱ, Ⅲ and Ⅳ respectively.
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Authors
Mir Elyad Vakhshouri
Department of Mechanical Engineering, Karadeniz Technical University, Trabzon, ۶۱۰۸۰, Turkey
Burhan ÇUhadaroğlu
Department of Mechanical Engineering, Karadeniz Technical University, Trabzon, ۶۱۰۸۰, Turkey
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