超音速探测器-刚性盘-缝-带型降落伞系统的大涡模拟研究

龚升; 吴锤结

doi:10.21656/1000-0887.410274

超音速探测器-刚性盘-缝-带型降落伞系统的大涡模拟研究

doi: 10.21656/1000-0887.410274

龚升,
吴锤结

大连理工大学航空航天学院, 辽宁大连 116024

基金项目: 国家自然科学基金(11372068)；国家重点基础研究发展计划(973计划)(2014CB744104)

详细信息

作者简介:
龚升(1988—)，男，博士生(E-mail: sgongsky@mail.dlut.edu.cn)；吴锤结(1955—)，男，教授(通讯作者. E-mail: cjwudut@dlut.edu.cn).

中图分类号: O357.41
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- 文章访问数: 1606
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- 被引次数: 0
出版历程
- 收稿日期: 2020-09-14
- 修回日期: 2020-09-28
- 刊出日期: 2021-03-01

Large-Eddy Simulation of Supersonic Capsule-Rigid Disk-Gap-Band Parachute Systems

School of Aeronautics and Astronautics, Dalian University of Technology,Dalian, Liaoning 116024, P.R.China

Funds: The National Natural Science Foundation of China（11372068）

摘要

摘要: 研究了Mach数为2时，流场不同块结构自适应网格加密精度对探测器-刚性盘-缝-带型降落伞系统的气动减速性能以及流场结构特性的影响.对于非定常可压缩流体流动，采用了兼顾激波与湍流的WENO(weighted essentially non-oscillatory)和TCD(tuned center difference)混合计算格式以及拉伸涡亚格子模型的大涡模拟方法.结果表明：在较低的流场块结构自适应网格分辨率下，是难以准确模拟计算降落伞系统重要的气动阻力系数和捕捉流场流动特征细节的.随后验证了流场自适应网格的收敛性.
- 自适应网格加密 /
- 大涡模拟 /
- 超音速流 /
- 盘-缝-带型降落伞
Abstract: The influences of the aerodynamic deceleration performance and the flow field structure characteristics of the capsule-rigid disk-gap-band parachute system at an initial Mach number of 2.0 and different block-structured adaptive mesh refinement were studied. In the unsteady compressible fluid, the hybrid WENO (weighted essentially non-oscillatory) and TCD (tuned center difference) schemes were used to simulate the shock wave and the smooth continuous flow field. The large-eddy simulation method with the stretched vortex subgrid model was used to deal with the turbulence. The results show that, at a low resolution of the block-structured adaptive mesh refinement, it is difficult to accurately simulate the important aerodynamic drag coefficient and capture the flow field characteristics of the parachute system. Subsequently, the convergence of the adaptive mesh refinement of the flow field was verified.
- adaptive mesh refinement /
- large-eddy simulation /
- supersonic flow /
- disk-gap-band parachute

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参考文献(20)

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文章访问数: 1606
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PDF下载量: 501
被引次数: 0

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超音速探测器-刚性盘-缝-带型降落伞系统的大涡模拟研究

doi: 10.21656/1000-0887.410274

作者简介:
龚升(1988—)，男，博士生(E-mail: sgongsky@mail.dlut.edu.cn)；吴锤结(1955—)，男，教授(通讯作者. E-mail: cjwudut@dlut.edu.cn).

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Large-Eddy Simulation of Supersonic Capsule-Rigid Disk-Gap-Band Parachute Systems

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留言板

超音速探测器-刚性盘-缝-带型降落伞系统的大涡模拟研究

doi: 10.21656/1000-0887.410274

作者简介: 龚升(1988—)，男，博士生(E-mail: sgongsky@mail.dlut.edu.cn)；吴锤结(1955—)，男，教授(通讯作者. E-mail: cjwudut@dlut.edu.cn).

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出版历程

Large-Eddy Simulation of Supersonic Capsule-Rigid Disk-Gap-Band Parachute Systems

计量

出版历程

目录

作者简介:
龚升(1988—)，男，博士生(E-mail: sgongsky@mail.dlut.edu.cn)；吴锤结(1955—)，男，教授(通讯作者. E-mail: cjwudut@dlut.edu.cn).