报告题目：ASYMPTOTIC-PRESERVING WENO/DG/CPRSCHEMES FOR BOLTZMANN MODEL EQUATIONS AND
        GENERALIZEDRAREFIED GAS FLOW SIMULATION

报告人：Jaw-Yen Yang,  National Taiwan University

时  间：2014年12月25日（周四)）    下午16:00―17:00

地  点：东区管理科研楼  365英国上市官网1318室

内容提要：
A class of asymptotic-preserving implicit-explicit Runge-Kutta WENO/DG/CPR schemes for solving the Generalized Boltzmann model equations is presented.  The conserved discrete ordinate method for discretizing the velocity space is devised and implemented.  The asymptotic-preserving time integrating scheme allows larger time step and the limiting Euler solution to be approached in the Chapman-Enskog expansion.  A general treatment of partially diffusive and partially specular reflection wall boundary condition is derived.  Computations of rarefied gas flows covering wide Knudsen numbers are given to illustrate the method.  The present computational strategy provides an accurate and robust framework for treating generalized rarefied gas flows.  Some discussions on extension and application to semiclassical Boltzmann model equations and its solutions will be also included.