Modelling of Heat Transfer and Vehicle Dynamics for Thermal Load Reduction by Hypersonic Flight Optimization

M. Dinkelmann, M. Wächter and G. Sachs

Mathematical and Computer Modelling of Dynamical Systems, 2002, vol. 8, issue 3, 237-255

Abstract: Heat input reduction by appropriate, optimal trajectory control is considered for the range cruise and the return-to-base cruise of a hypersonic vehicle propelled by a turbo/ram jet engines combination. A mathematical model is developed for describing the unsteady heat transfer through the thermal protection system. This model is coupled to the model of the dynamics of the vehicle. An efficient optimization technique is applied for constructing a solution for the two cruise problems. The results show that significant heat input reductions can be achieved with only a small penalty in fuel consumption.

Date: 2002
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DOI: 10.1076/mcmd.8.3.237.14098

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