21st Congress of International Council of the Aeronautical Sciences, Melbourne, Australia, 13-18 September, 1998
Paper ICAS-98-7.3.1

A SIMPLE ANALYTICAL MODEL FOR PARAMETRIC STUDIES OF HYPERSONIC WAVERIDERS

Starkey R. P.
University of Maryland, USA

Keywords: hypersonic, waverider, analytical model

An analytical, power-law derived hypersonic waverider model is developed using a three-dimensional wedge-based flowfield with viscous effects. The model is designed for simple parametric tradeoffs, and understanding of more complex optimization results. This analytical model is validated against a viscous optimized conical waverider created using an inverse design technique. Off-design performance of the analytical model at varying Mach numbers and angles-of-attack is validated using an optimized shock defined waverider (which itself has been validated with an Euler CFD calculation). Both the variable wedge angle waverider and shock defined waverider calculations had the same magnitude of error in comparison to the CFD validation L/D ratios (maximum of 2% difference). The variable wedge angle method calculated the same aerodynamic and geometric properties of higher order methods in orders of magnitude less time.

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