Mixing characteristics of a transverse jet injection into supersonic crossflows through an expansion wall
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- 作者：Chaoyang Liu ; Zhenguo Wang ; Hongbo Wang ; Mingbo Sun
- 关键词：LES ; Transverse jet ; Expansion effect ; Turbulent boundary layer ; Favorable pressure gradients
- 刊名：Acta Astronautica
- 出版年：2016
- 出版时间：December 2016
- 年：2016
- 卷：129
- 期：Complete
- 页码：161-173
- 全文大小：2162 K
文摘
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WENO-CU6 scheme and MPI/OpenMP are adopted to improve the numerical accuracy and efficiency.
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Wall expansion leads to a quicker breaking process of large-scale vortices.
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The separation region ahead of jet is more close to the wall with large favorable pressure gradient.
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The mixing efficiency is reduced by the effect of wall expansion.