Surrogate-Based Multi-Objective Aerothermodynamic Design Optimization of Hypersonic Spiked Bodies | ||||
| International Conference on Aerospace Sciences and Aviation Technology | ||||
| Article 95, Volume 14, AEROSPACE SCIENCES & AVIATION TECHNOLOGY, ASAT - 14 – May 24 - 26, 2011, May 2011, Page 1-27 PDF (2.86 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/asat.2011.23409 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| M. Y. M. Ahmed1; N. Qin2 | ||||
| 1Egyptian armed forces, Egypt. | ||||
| 2Professor of Aerodynamics, Department of Mechanical Engineering, University of Sheffield, UK, Associate Fellow AIAA. | ||||
| Abstract | ||||
| Aerospikes can reduce both drag and aeroheating for hypersonic vehicles with blunt forebodies. However, the performance of the spike depends largely upon its design and the forebody geometry. Balancing the design for drag and aeroheating reduction can be competing. For some design combinations, the flow can be unstable which invokes undesirable consequence. In this work, a stability-constrained bi-objective design optimization for the hypersonic spiked bodies was conducted. The multi-objective algorithm was coupled with the Kriging surrogates that were constructed based on numerical solutions of laminar viscous flows around the geometries. | ||||
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