| タイトル | Velocity-coupled flow oscillations in a simulated solid-propellant rocket environment |
| 著者（英） | Hsieh, Kwang-Chung; Yang, Vigor; Tseng, Jesse I. S. |
| 著者所属（英） | Sverdrup Technology, Inc.; NASA Lewis Research Center; Pennsylvania State Univ. |
| 発行日 | 1988-01-01 |
| 言語 | eng |
| 内容記述 | A comprehensive numerical analysis has been carried out to study the unsteady flowfields in a simulated rocket-motor environment. The model is based on the time-dependent compressible Navier-Stokes equations with a two-equation turbulence closure scheme. Various important aspects of the coupling between acoustic oscillations and mean flowfields, including flow reversal, modification of transport properties, etc., are addressed. Results indicate that multi-dimensional effects play important roles in determining local flow structures and wave characteristics. In much of the domain, acoustic velocity nodal points are observed in the near-wall region. The classical one-dimensional theory fails to describe several important mechanisms associated with velocity-induced flow instabilities. |
| NASA分類 | PROPELLANTS AND FUELS |
| レポートNO | 88A27720
AIAA PAPER 88-0543 |
| 権利 | Copyright |
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