Thermal Performance of Oscillating Blade with Various Geometries in a Straight Channel
Publish Year: 1401
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_JACM-8-1_010
تاریخ نمایه سازی: 8 آذر 1400
Abstract:
In this study, the effect of stationary and oscillating blades on the forced convection heat transfer in a channel is studied numerically. Simulations are performed in a fully-developed, laminar, unsteady, and incompressible flow with Reynolds number and Prandtl number equal to ۱۰۰ and ۱, respectively. The effects of the blade geometry, oscillating speed and oscillation angle on heat transfer and pressure drop are studied. The results are presented in terms of time-averaged Nusselt number, temperature, and vorticity distribution and the pressure drop. The results indicate that the oscillation angle, oscillating speed of the blade, and the number of the blades, affect the thermal performance of the channel. In most cases, it is observed that the effect of the oscillation angle is more than that for the oscillating speed on heat transfer enhancement. However, increasing the number of blades does not necessarily help to enhance the heat transfer, but it can slightly decrease the pressure drop.
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Authors
Ehsan Izadpanah
Department of Mechanical Engineering, Persian Gulf University, Bushehr ۷۵۱۶۹, Iran
Milan Yazdanian
South Pars Gas Company, Bushehr ۷۵۳۹۱/۳۱۱, Iran
Mohamad Hamed Hekmat
Department of Mechanical Engineering, Tafresh University, Tafresh ۳۹۵۱۸-۷۹۶۱۱, Iran
Yasser Amini
Department of Mechanical Engineering, Persian Gulf University, Bushehr ۷۵۱۶۹, Iran
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