Effects of slip on steady B枚dewadt flow of a non-Newtonian fluid

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• 作者：Bikash Sahoo^a ; ^{bikashsahoo@nitrkl.ac.in} ; Sé ; bastien Poncet^b ; ¹ ; ^{poncet@l3m.univ-mrs.fr}
• 关键词：Reiner&ndash ; Rivlin fluid ; Bö ; dewadt flow ; Partial slip ; Finite difference method
• 刊名：Communications in Nonlinear Science and Numerical Simulation
• 出版年：2012
• 期刊代码：89_10075704
• 类别：ph
• 出版时间：November, 2012
• 卷：17
• 期：11
• 页码：4181-4191
• 文件大小：829 K

摘要

The steady flow arising due to the rotation of a non-Newtonian fluid at a larger distance from a stationary disk is extended to the case where the disk surface admits partial slip. The constitutive equation of the non-Newtonian fluid is modeled by that for a Reiner-Rivlin fluid. The momentum equation gives rise to a highly nonlinear boundary value problem. Numerical solution of the governing nonlinear equations are obtained over the entire range of the physical parameters. The effects of slip and non-Newtonian fluid characteristics on the momentum boundary layer are discussed in details. It is observed that slip has prominent effect on the velocity field, whereas a predominant influence of the non-Newtonian parameter is observed on the moment coefficient.