AbstractIn this paper, the effect of heat release on movement characteristics of shock train is numerically investigated in an isolator. It is found that the combustion heat release has a distinct effect on the shock train movement characteristics in the isolator. With increasing heat release, a shock train gradually forms and then propagates toward isolator entrance. In process of shock train formation, separation bubbles before injection ports entrain the high temperature burning gas into the boundary layer, which causes the shock train to shrink and stretch, and changes in configuration and number of shock waves. At the same time, the system force fluctuates. In addition, the shock train movement is divided into three stages, which have different wall pressure distribution. It is believed that these findings have a help the better understanding of the effect of heat release on the movement characteristics of shock train in an isolator.
HighlightsShock train reveals the different characteristics under the effect of combustion.High temperature gas in boundary layer leads to shock train shrinkage and stretch.Shock train movement processes are classified into three stages.
Effect of heat release on movement characteristics of shock train in an isolator
Acta Astronautica ; 133 ; 185-194
2017-01-24
10 pages
Article (Journal)
Electronic Resource
English
Effect of heat release on movement characteristics of shock train in an isolator
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