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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2007, Vol. 8 Issue (2 ): 20-    DOI: 10.1631/jzus.2007.A0313
    
3D couette flow of dusty fluid with transpiration cooling
Govindarajan A. , Ramamurthy V. , Sundarammal K.
Department of Mathematics, SRM University, Kattankulathur 603 203, India
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Abstract  The couette dusty flow between two horizontal parallel porous flat plates with transverse sinusoidal injection of the dusty fluid at the stationary plate and its corresponding removal by constant suction through the plate in uniform motion was analyzed. Due to this type of injection velocity the dusty flow becomes 3D. Perturbation method is used to obtain the expressions for the velocity and temperature fields of both the fluid and dust. It was found that the velocity profiles of both the fluid and dust in the main flow direction decrease with the increase of the mass concentration of the dust particles, and those in cross flow direction increase with an increase in the mass concentration of the dust particles up to the middle of the channel and thereafter decrease with increase in mass concentration of the dust particles. The skin friction components Tx and Tz in the main flow and transverse directions respectively increase with an increase in the mass concentration of the dust particles (or) injection parameter. The heat transfer coefficient decreases with the increase of the injection parameter and increases with the increase in the mass concentration of the dust particles.

Key words： Couette dusty flow      Transpiration cooling      Transverse sinusoidal      Injection/suction      Dusty fluid      Mass concentration      Relaxation time     
Received: 11 August 2006     
CLC:  O359  
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Cite this article:

Govindarajan A. , Ramamurthy V. , Sundarammal K.. 3D couette flow of dusty fluid with transpiration cooling. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2007, 8(2 ): 20-.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.2007.A0313     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2007/V8/I2 /20

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