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Drag Force of Non-newtonian Fluid on a Continuous Moving Surface with Strong Suction/Blowing |
| ZHENG Lian-Cun1;ZHANG Xin-Xin2;HE Ji-Cheng3 |
| 1Department of Mathematics and Mechanics, University of Science and Technology Beijing, Beijing 100083
2Mechanical Engineering School, University of Science and Technology Beijing, Beijing 100083
3Thermal Engineering Department, Northeastern University, Shenyang 110006 |
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| Cite this article: |
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ZHENG Lian-Cun, ZHANG Xin-Xin, HE Ji-Cheng 2003 Chin. Phys. Lett. 20 858-861 |
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Abstract A theoretical analysis for the laminar boundary layer flow of a non-Newtonian fluid on a continuous moving flat plate with surface strong suction/blowing is made. The types of potential flows necessary for similar solutions to the boundary layer are determined and both analytical and numerical solutions are presented. It is shown that the solution of the boundary layer problem depends not only on the ratio of the velocity of the plate to the velocity of the free stream, but also on the suction/blowing parameter. The skin friction decreases with the increase of the parameters of power law and blowing. In the case of existing suction, the shear force decreases with the increases of tangential velocity, the largest shear force occurs at wall and the smallest shear force occurs at the edge of the boundary layer. However, in the case of existing surface blowing, the shear force initially increases with tangential velocity and the biggest shear force occurs at the interior of the boundary layer, the skin friction approaches to zero as the blowing rate approaches the critical value.
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47.50.+d
47.55.Mh
83.50.Ax
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Published: 01 June 2003
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