Multipoint Design Optimization of Busemann-Based Intakes for Scramjet-Powered Ascent Flight

What is it about?

The intake plays a key role in efficient operation of a scramjet engine, a promising hypersonic airbreathing technology. The Busemann intakes offer desirable performance in the design condition in the inviscid regime, but their performance inherently deteriorates significantly under off-design conditions in the presence of viscosity. A multi-objective optimization has been performed for Busemann-based intakes to operate in multiple design conditions on an ascent flight trajectory by employing the state-of-the-art optimization methodology. In so doing, physical insights into have been obtained into the key design factors and underlying aerodynamic phenomena to enable scramjet-powered access-to-space.

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