Flow Visualization of Supersonic Flow over a Finite Cylinder
WANG Deng-Pan1, ZHAO Yu-Xin1**, XIA Zhi-Xun1, WANG Qing-Hua2, LUO Zhen-Bing1
1Science and Technology on Scramjet Laboratory, National University of Defense Technology, Hunan 410073 2The Third Institute, the Second Artillery Equipment Academy, Beijing 100085
Abstract：The flow structures of a supersonic flow over a cylinder with a finite height are investigated using the method of flow visualization with nanoparticle-based planar laser scattering (NPLS), in a supersonic quiet wind tunnel at Ma=2.68. The complex structures of shock waves and three-dimensional vortices in a supersonic flow over a finite cylinder are visualized. Based on the time correlation of NPLS images, the time-space evolutionary characteristics of the coherent structures in a supersonic flow over a finite cylinder are studied, and the evolutionary characteristics of the coherent structure in the flow direction are obtained, which are used to identify the model and rotation direction of shedding vortices.
. [J]. 中国物理快报, 2012, 29(8): 84702-084702.
WANG Deng-Pan, ZHAO Yu-Xin, XIA Zhi-Xun, WANG Qing-Hua, and LUO Zhen-Bing. Flow Visualization of Supersonic Flow over a Finite Cylinder. Chin. Phys. Lett., 2012, 29(8): 84702-084702.
2012, Vol. 29 
