Effects of Variable Power Law Index on Solidification of non-Newtonian Fluids in a Pipe
In this paper, the solidification of power law fluids is investigated by assuming that the power law index is varying according to a function of time. The fluid flow is hydrodynamically fully-developed and laminar while the effect of the power law kinematic viscosity on heat transfer is considered. A control volume technique based on the finite difference model coupled with the LU decomposition method is adopted and the least squares polynomial is used to approximate the non-linear items in the energy equation. The results show that the heat transfer behaviors are strongly depending on the value of the power law index and the temperature profiles are compared with the ones which are obtained by using a constant power law index.
Botong Li Liancun Zheng Xinxin Zhang
University of Science and Technology Beijing, Department of Mathematics and Mechanics,Mathematics an University of Science and Technology Beijing, Department of Mathematics and Mechanics, Beijing, 1000 University of Science and Technology Beijing, Mechanical Engineering School, Beijing, 100083, China
国际会议
The Ninth Asian Thermophysical Properties Conference(第九届亚洲热物理性能会议 ATPC 2010)
北京
英文
790-792
2010-10-19（万方平台首次上网日期，不代表论文的发表时间）