Title: Aerodynamic Performances of a Combined Cycle Inlet
Abstract: Ramp-compression-type inlets for the combined cycle engine were investigated in a Mach 4 wind tunnel. Geometries of the inlet models were changed to investigate their effects on the aerodynamic performances and the starting characteristics. A bent cowl improved the starting characteristic by weakening the shock from the cowl leading edge to suppress the shock-induced separation and by reducing the internal contraction ratio of the cowl duct, thus, avoiding choking at the inlet throat. With the current geometries, the inlet started with a slightly larger internal contraction ratio than that restricted by the Kantrowitz-Donaldson limit. The ratio of the height of the cowl duct of the inlet to the incoming boundary layer was found to affect the starting characteristic. The model with a higher capture ratio showed better total pressure recovery performance.
Publication Year: 2006
Publication Date: 2006-07-01
Language: en
Type: article
Indexed In: ['crossref']
Access and Citation
Cited By Count: 22
AI Researcher Chatbot
Get quick answers to your questions about the article from our AI researcher chatbot