| 界面追踪方法中的激波限制器研究 |
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| 引用本文： | 王东红,赵宁,刘剑明.界面追踪方法中的激波限制器研究[J].计算物理,2009,26(4):510-516. |
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| 作者姓名： | 王东红 赵宁 刘剑明 |
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| 作者单位： | 1. 南京航空航天大学理学院, 江苏 南京 210016;2. 南京航空航天大学航空宇航学院, 江苏 南京 210016 |
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| 摘 要： | 针对多介质流体界面追踪(Front Tracking)方法,通过在界面处构造Riemann问题,研究激波限制器应用过程中的若干基本问题.针对气-气和气-水界面问题,通过比较平均守恒误差、L1误差和激波强度随参数的变化情况,给出激波限制器参数可以在0.3附近选取.同时,通过理论分析和数值算例发现,当有激波接近界面时,选择激波波后状态作为界面处Riemann问题的初始状态,数值模拟结果较满意.
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| 关 键 词： | 可压缩多介质流 界面追踪方法 Riemann问题 限制器 |
| 收稿时间： | 2008-03-04 |
| 修稿时间： | 2008-10-06 |
Shock Limiter in Front Tracking Method |
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| WANG Donghong,ZHAO Ning,LIU Jianming.Shock Limiter in Front Tracking Method[J].Chinese Journal of Computational Physics,2009,26(4):510-516. |
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| Authors: | WANG Donghong ZHAO Ning LIU Jianming |
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| Institution: | 1. College of Science, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;2. College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China |
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| Abstract: | Riemann problems are constructed at interface in front tracking(FT) method for multi-fluid flows to study application of shock limiter.In gas-gas and gas-water problems,shock limiter parameter is selected about 0.3 considering average conservation error,L_1 error and strength of the shock.It is indicated that in order to obtain better solutions the back shock wave should be selected as an original state for Riemann problems at the interface as a shock is close to a material interface. |
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| Keywords: | compressible multi-fluid flow front-tracking method Riemann problem limiter |
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