2015, 7(1): 69-74.
混合网格重叠方法在多体相对运动中的应用
| 1. | 中国建筑科学研究院建研科技股份有限公司，北京 100013 |
| 2. | 北京市燃气集团研究院，北京 100011 |
A Dynamic Overset Mixed Grids Approach for Multiple Relative Motion
| 1. | CABR TECHNOLOGY CO., LTD., China Academy of Building Research, Beijing 100013, China |
| 2. | Academy of Beijing Gas Group Co., Ltd., Beijing 100011, China |
引用本文:
康忠良, 方媛媛. 混合网格重叠方法在多体相对运动中的应用[J]. 土木建筑工程信息技术,
2015, 7(1): 69-74.
Citation:
Kang ZhongLiang, Fang Yuanyuan. A Dynamic Overset Mixed Grids Approach for Multiple Relative Motion[J]. Journal of Information Technologyin Civil Engineering and Architecture,
2015, 7(1): 69-74.
摘要:本文发展了混合网格的动态重叠方法。基于线性重构方法，给出了一种适用于混合网格间的插值策略。所建立的网格间边界定义方法的性能优秀可靠，网格装配后的插值边界光滑且网格匹配性较好。耦合求解非定常NS方程和刚体6DOF运动方程来模拟多体相对运动问题。外挂物分离问题的数值计算表明，所发展的动网格方法对于处理多体相对运动模拟问题是快速准确可靠的。
Abstract: A dynamic overset mixed grids algorithm is proposed. An interpolation method based on the linear reconstruction is developed for the overset mixedgrids approach. The optimized intergrid-boundary definition method is shown to be excellent and reliable. The intergrid boundaries are very smooth and have similar cell sizes.The flows around multiple bodies in relative motion can be simulated by solving the unsteady Navier-Stokes equations and the 6DOF equations. The numerical results of store separation prove that the present dynamic overset grids method is fast, accurate and reliable.
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