| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
|
|
|
|
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 |
|
| Cite this article: |
|
|
|
|
|
|
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.
|
|
|
Received: 20 February 2012
Published: 31 July 2012
|
|
| PACS: |
47.32.-y
|
(Vortex dynamics; rotating fluids)
|
| |
47.40.Ki
|
(Supersonic and hypersonic flows)
|
| |
47.40.-x
|
(Compressible flows; shock waves)
|
|
|
|
|
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
