物理学报Issue(1)：1-6,6.DOI:10.7498/aps.64.014704
高超声速平板边界层流动显示的试验研究∗
Exp erimental study on flow visualization of hyp ersonic flat plate b oundary layer
摘要
Abstract
The classical problem of flat plate boundary layer which involves turbulence and transition is still hot, and a mass of work should be done to reach a high accuracy measurement of this flow, especially under the condition of high velocity. In the present paper, the application of the nano-based planar laser scattering (NPLS) method in a hypersonic short-duration facility is explored, and then the high accuracy measurement of a flat plate boundary layer is studied. The Mach number of the main flow is 7.3, the total pressure is 4.8 MPa, and the total temperature is 680 K. Through analysis and tests, the synchronization control of the NPLS system with the test facility is realized, and with the quantitative control, the tracer particle is uniformly seeded. Based on this, the transient boundary layer flow in the short-duration tunnel is visualized with high resolution, and the transition from laminar to turbulent flows is captured. The development characteristic of the flow is studied finally.关键词
高超声速/平板边界层/纳米粒子示踪技术/流动显示Key words
hypersonic/flat plate boundary layer/NPLS/flow visualization引用本文复制引用
付佳,易仕和,王小虎,张庆虎,何霖..高超声速平板边界层流动显示的试验研究∗[J].物理学报,2015,(1):1-6,6.基金项目
国家自然科学基金(批准号:11172326和11302256)资助的课题.* Project supported by the National Natural Science Foundation of China (Grant Nos.11172326,11302256) （批准号:11172326和11302256）
