Aerothermodynamic shape optimization of hypersonic blunt bodies

EYİ S., Yumusak M.

ENGINEERING OPTIMIZATION, vol.47, no.7, pp.909-926, 2015 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 47 Issue: 7
  • Publication Date: 2015
  • Doi Number: 10.1080/0305215x.2014.933822
  • Journal Name: ENGINEERING OPTIMIZATION
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.909-926
  • Keywords: Euler/Navier-Stokes, hypersonic flow, adjoint, finite-rate chemistry, shape optimization, Bezier curve, HEAT-TRANSFER, DESIGN OPTIMIZATION, DRAG, FLOW
  • Middle East Technical University Affiliated: Yes

Abstract

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 hypersonic blunt geometry that produces the minimum drag with low aerodynamic heating. Bezier curves are used for geometry parameterization. The performances of the design optimization method are demonstrated for different hypersonic flow conditions.