Numerical investigation of mixing augmentation behind oblique shock waves
| Autor: | S. N. Zakotneko, V. I. Vasilev, V. A. Stepanov, S. Ju. Krasheninnikov |
|---|---|
| Rok vydání: | 1994 |
| Předmět: |
Shock wave
Physics Jet (fluid) geography geography.geographical_feature_category Shock (fluid dynamics) business.industry Turbulence Astrophysics::High Energy Astrophysical Phenomena Aerospace Engineering Mechanics Inlet Physics::Fluid Dynamics Optics Oblique shock Supersonic speed business Mixing (physics) |
| Zdroj: | AIAA Journal. 32:311-316 |
| ISSN: | 1533-385X 0001-1452 |
| DOI: | 10.2514/3.11986 |
| Popis: | The interaction of a three-dimensional supersonic turbulent jet with an oblique shock wave and a system of shocks in a hypersonic inlet is numerically investigated. The flow is simulated by the parabolized Navier-Stokes equations and a one-equation turbulence model. It is shown that jet convergence behind the single shock leads to an increase of mixing on the order of 2-4 times. The system of shocks in the hypersonic inlet increases the mixing of air and helium injected before the inlet entrance. The mixing completeness at the inlet throat reaches a value of about 0.6-0.7 without significant pressure loss. A simplified technique for estimating the maximum concentration in a jet behind a shock is proposed. The results obtained with the help of this technique agree rather well with the numerical data. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|