Abstract
In order to study the atomization mixing characteristics of liquid fuel in scramjet combustor as well as determine the key factors influencing the atomization so as to realize efficient combustion, the flow field structure of the shock wave, jet penetration and induced bow shock strength of liquid jet aviation kerosene RP-3 and water in supersonic flow were experimentally studied respectively by mainly using the schlieren method, assisted with planar laser induced fluorescence (PLIF) technology and particle diameter measurement technology in supersonic combustion cold spray experiment platform. And jet atomization mixing characteristics were mathematically analyzed. It is demonstrated that defined dimensionless parameters could qualitative analyze variation trend associated with both two kinds of liquid jet in supersonic cross flow, and the conclusion is consistent with the experimental result. Within the scope of the dynamic pressure ratio of 1.0-3.3, the jet penetration and induced bow shock strength increases with the increase of dynamic pressure ratio and jet velocity. Surface tension and viscosity have important effects on the supersonic jet mixing.
| Original language | English |
|---|---|
| Pages (from-to) | 2356-2362 |
| Number of pages | 7 |
| Journal | Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics |
| Volume | 41 |
| Issue number | 12 |
| DOIs | |
| State | Published - 1 Dec 2015 |
Keywords
- Atomization
- Planar laser induced fluorescence (PLIF)
- Schlieren method
- Scramjet
- Traverse jet
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