AbstractOperation pattern recognition/classification is one of the most important issues of the hypersonic inlet and is also the foundation of protection control of a scramjet. To solve this problem, the 2-D inner steady flow of the hypersonic inlet was numerically simulated at different freestream conditions and backpressures, and two different inlet unstart phenomena were analyzed. The pattern classifications of hypersonic inlet start/unstart, especial the inlet backpressure unstart/low Mach number unstart were performed based on “numerical experimental” data by the support vector machine algorithms. The physical significance of the classification criterions was explained, and the discussions of the classification criterion used in NASA/CIAM flight test were presented. In conclusion, the operation pattern classification of hypersonic inlet can be solved well by using the support vector machine algorithms.
Operation pattern classification of hypersonic inlets
Acta Astronautica ; 65 , 3-4 ; 457-466
2009-02-11
10 pages
Article (Journal)
Electronic Resource
English
Operation pattern classification of hypersonic inlets
Online Contents | 2009
|Operation pattern classification of hypersonic inlets
Online Contents | 2009
|Starting criterion for hypersonic inlets
AIAA | 1970
|Turbulence modeling in hypersonic inlets
AIAA | 1988
|Unstart margin control of hypersonic inlets
Online Contents | 2010
|