Design and Optimization of an Inward-Turning Inlet with Rectangular-To-Ellipse Shape Transition

Rectangular-to-Ellipse Shape Transition (REST) inlets are a ind of inward turning inlets with a shape transition. The design procedure is based on a streamline tracing technique that extracts different streamtubes from the same reference flow. These D streamtubes are combined by using a shape integration function in order to generate the inward turning inlet. In present wor the inverse technique of REST inlet design is coupled to an optimization procedure. A parametric description of a REST inlet was introduced. This set of parameters represents in turn a set of control variables for the optimization procedure. The parameterization, computation, and optimization are accomplished automatically by using the ISIGHT software. The result shows REST inlet parametric representation with several variables. The design with full mass captures at the design point, and the performance improvements of the REST inlet through the proposed optimization process.