Adjoint Shape Optimization of Hypersonic Blunt BodiesIncluding the Effect of Graphite Ablation

Onay, Oğuz
Eyi, Sinan
One of the aims of the study, is to develop a numerical analysis tool for thermochemical ablation problem under hypersonic flow conditions. The other aim is to include the effects of the graphite ablation to a design optimization tool which uses adjoint method. In this study, IRV2 geometry is selected as the original geometry and optimization study is performed under reacting flow conditions. Drag coefficient of the geometry is reduced without increasing the stagnation point temperature. After the optimization study, ablation behavior of the original geometry and the optimized geometry have been analyzed and compared.


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The aim of this study is to develop a reliable and efficient design tool that can be used in hypersonic flows. The flow analysis is based on the axisymmetric Euler/Navier-Stokes and finite-rate chemical reaction equations. The equations are coupled simultaneously and solved implicitly using Newton's method. The Jacobian matrix is evaluated analytically. A gradient-based numerical optimization is used. The adjoint method is utilized for sensitivity calculations. The objective of the design is to generate a h...
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Citation Formats
O. Onay and S. Eyi, “Adjoint Shape Optimization of Hypersonic Blunt BodiesIncluding the Effect of Graphite Ablation,” 2016, vol. 9, Accessed: 00, 2021. [Online]. Available: