A GENERALIZED SCHEME OF THE CHARACTERISTIC BASED SPLIT (CBS) ALGORITHM FOR INCOMPRESSIBLE NON-ISOTHERMAL NON-NEWTONIAN FLUID FLOWS
A generalized scheme of the Characteristic Based Split (CBS) algorithm for numerical simulation of incompressible non-isothermal non-Newtonian fluid flows is presented. The generalization is twofold: one is that it extends the CBS algorithm from Eulerian description to Arbitrary Lagrangian-Eulerian (ALE) description;the other is that two parameters a and p are introduced such that the classical CBS algorithm is a special case of this generalized scheme with a=1 and β=0. Numerical results of the non-isothermal Poisseuille flow problem with the power-law fluid model show that, by tuning these two introduced parameters, such generalized scheme may perform better than the classical CBS algorithm in a wide range of Reynolds and thermal Peclet numbers. With the adaptive coupled finite element (FE) and meshfree (MF) method for spatial discretizations, the performance and the capability of the proposed scheme is further validated by the thermal 4:1 contraction and the injection moulding problems.
Qinglin Duan Xikui Li
Department of Engineering Mechanics,Dalian University of Technology, Dalian 116024,P.R.China Department of Engineering Mechanics, Dalian University of Technology,Dalian 116024, P.R.China
国际会议
2nd International Conference on Computational Methods for Thermal Problems(第二届热问题计算方法国际会议)
大连
英文
163-166
2011-09-05（万方平台首次上网日期，不代表论文的发表时间）