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| A modification technique of collision probability on coarse grid in the direct simulation monte carlo method |
| Received:August 26, 2013 Revised:October 21, 2013 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx201501004 |
| KeyWord:DSMC unstructured grid collision probability least square method |
| Author | Institution |
| 黄飞 |
中国航天空气动力技术研究院, 北京 |
| 靳旭红 |
中国航天空气动力技术研究院, 北京 |
| 赵波 |
中国航天空气动力技术研究院, 北京 |
| 程晓丽 |
中国航天空气动力技术研究院, 北京 |
| 沈清 |
中国航天空气动力技术研究院, 北京 |
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| Abstract: |
| A new modification technique of collision probability with least square method and sub-relaxation technique is introduced to improve simulation precision in DSMC with coarse grid size.The new method is applied to direct simulation Monte Carlo method based on unstructured tetrahedral cells.Flow around blunt cone is investigated,and the numerical results confirm feasibility of the modification technique. |