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流向细纹平板边界层湍流减阻机理研究
陈哲; 李新亮; 梁贤
Source Publication高温气体动力学研究进展
2012
Pages265-270
Conference NameLHD2012夏季学术研讨会
Conference Date2012
Conference Place吉林延吉
Abstract本文针对Mach 2.25 平板边界层湍流,以直接数值模拟(DNS)为手段进行了流向条纹壁减阻研究。计算发现,当流向条纹间距为100 个壁面尺度时,具有最佳减阻效果。而减阻效果随条纹高度增加而加强,当条纹高度达到30 个壁面尺度时减阻效果相当明显。当全平板施加条纹壁时,由于抑制了壁面吹吸扰动的吸收性,流动不发生转捩。在转捩区及充分发展湍流区施加条纹壁虽不能完全抑制转捩,但仍有较好的减阻效果。
Keyword流向细纹 平板边界层 减阻
DepartmentLHD可压缩湍流
Language中文
Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/48011
Collection高温气体动力学国家重点实验室
Recommended Citation
GB/T 7714
陈哲,李新亮,梁贤. 流向细纹平板边界层湍流减阻机理研究[C],2012:265-270.
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