Aerodynamic Design of Inward-Turning Inlets with Shape Transition

Rectangular-to-Ellipse Shape Transition (REST) inlets are a kind of inward-turning inlets designed for hypersonic vehicles, especially under integration design backgrounds. The streamline tracing technique is an inverse method for designing inward-turning inlets by extracting different streamtubes from the same reference flow. In present work, the streamline tracing technique is coupled with an optimization procedure. The procedure for designing a REST inlet with prescribed mass capture at the design point and optimal performance is illustrated.