A Force-Based Grid Manipulator for ALE Calculations in a Lobe Pump

作     者：John Vande Voorde rug.ac.be Jan Vierendeels rug.ac.be Erik Dick rug.ac.be 

作者机构：Department of Flow Heat and Combustion Mechanics Ghent University Belgium E-mail: John.VandevoordeDepartment of Flow Heat and Combustion Mechanics Ghent University Belgium E-mail: John.VandevoordeDepartment of Flow Heat and Combustion Mechanics Ghent University Belgium E-mail: John.Vandevoorde 

出 版 物：《Journal of Thermal Science》 (热科学学报（英文版）)

年 卷 期：2003年第12卷第4期

页      面：318-322,370页

核心收录：

学科分类：080704[工学-流体机械及工程] 08[工学] 0807[工学-动力工程及工程热物理] 

基　　金：Flemish Institute for the Promotion of Scientific and Technological Research in the Industry (IWT) 

主　　题：ALE arbitrary Lagrangean Eulerean moving grids lobe pump. 

摘      要：In this paper, a time-dependant calculation of flow in a lobe pump is presented. Calculations are performed using the arbitrary Lagrangean Eulerean (ALE) method. A grid manipulator is needed to move the nodes between time steps. The used grid manipulator is based on the pseudo-force idea. This means that each node is fictitiously connected with its 8 neighbours via fictitious springs. The equilibrium of the resulting pseudo spring forces defines the altered position of the nodes. The grid manipulator was coupled with a commercial flow solver and the whole was tested on the flow through a three-lobe lobe pump. Results were obtained for a rotational speed of 460 rpm and incompressible silicon oil as fluid.