计算物理 ›› 2015, Vol. 32 ›› Issue (6): 677-684.

• 论文 • 上一篇    下一篇

反应流体的移动网格动理学格式

甄亚欣1,2, 倪国喜1   

  1. 1. 北京应用物理与计算数学研究所, 计算物理实验室, 北京 100088;
    2. 华北电力大学, 数理系, 北京 102206
  • 收稿日期:2014-11-04 修回日期:2015-02-02 出版日期:2015-11-25 发布日期:2015-11-25
  • 作者简介:甄亚欣(1983-),女,博士,讲师,从事计算流体力学方法研究,E-mail:yasinezhen@163.com
  • 基金资助:
    国家自然科学基金(91130020,11402087);国防基础科研计划(B1520133015);计算物理实验室基金资助项目

Adaptive Moving Mesh Kinetic Scheme for Reactive Fluids

ZHEN Yaxin1,2, NI Guoxi1   

  1. 1. LCP, Institute of Applied Physics and Computational Mathematics, Beijing 100088, China;
    2. School of Mathematics and Physics, North China Electric Power University, Beijing 102206, China
  • Received:2014-11-04 Revised:2015-02-02 Online:2015-11-25 Published:2015-11-25

摘要: 在移动网格上构造一种反应流的动理学格式.首先利用BGK模型推导含化学反应的流体力学方程组,并利用其积分形式构造移动网格上离散格式,再利用自适应移动网格方法得到网格速度,最后利用时间精确的动理学数值方法构造数值通量,得到移动网格单元上新的物理量.一维与二维的数值实验表明这种格式同时具有高精度、高分辨率的特点.

关键词: 反应流体力学方程, 动理学格式, 自适应移动网格方法

Abstract: We concern extension of gas-kinetic scheme of BGK type to reactive fluids, and develop an adaptive moving meshes BGK scheme (AMMBGK). We derive systems from a mass fraction BGK model for detonation fluids, including both inviscid and viscous reactive flow systems. Then, based on a BGK type scheme and splitting method that splits system into fluid part and part of energy released from reaction process, we present a mass fraction BGK scheme on moving meshes for reactive flows. Numerical results validate availability of the gas-kinetic scheme in simulation of reactive fluids.

Key words: reactive fluids, mass fraction BGK model, gas kinetic scheme, adaptive moving meshes

中图分类号: