A Multi-Scale Numerical Simulation for Non-Isothermal Planar Contraction Flow of Polymeric Fluids with Fibers Suspension
In this paper, multi-scale numerical simulations on the mechanical behavior of polymeric fluid with fibers suspension were performed using information of three scales. The macro governing equations were solved using SIMPLER method, which can avoid the numerical oscillation which created by uncouple between pressure and velocity. Equations of second order orientation tensors with a closure model were adopted to predict the evolution of fibers orientation. The micro-scale non-linear diffusion governing equation was transformed to linear moment equations in calculating. The non-isothermal planar contraction flow was used as a benchmark test problem. The orientation of fibers at the rotational zone, shear zone and extensional zone were studied. The coupling effect between polymeric fluid and fibers were analyzed. And some numerical results were compared with experimental data and theory analysis results.
Multi-scale model fibers suspension polymeric fluids orientation tensor numerical simulation the contraction flow
Zhang Hongping Ouyang Jie
Department of Applied Mathematics, Northwestern Polytechnical University, Xian, 710072, China
国际会议
郑州
英文
90-100
2006-10-18（万方平台首次上网日期，不代表论文的发表时间）