Adjoint Method for Aerodynamic Shape Improvement

Paper #:
  • 2012-01-0167

Published:
  • 2012-04-16
Citation:
Han, T., Kaushik, S., Gin, R., and Bot, E., "Adjoint Method for Aerodynamic Shape Improvement," SAE Technical Paper 2012-01-0167, 2012, https://doi.org/10.4271/2012-01-0167.
Pages:
12
Abstract:
The main objective of this work is to demonstrate the merits of the Adjoint method to provide comprehensive information for shape sensitivities and design directions to achieve low drag vehicle shapes. The adjoint method is applied to a simple 2D airfoil and a 3D vehicle shape. The discrete Adjoint equations in the flow solvers are used to investigate further potential shape improvements of the low drag vehicle shapes. The low drag vehicle used in this study was designed earlier using the conventional approach (i.e., extensive use of wind tunnel testing). The goal is to use the already low drag vehicle shape and reduce its drag even further using the adjoint methodology without using the time-consuming and the high cost of wind tunnel testing. In addition, the present study is intended to compare the results with the other computational techniques such as surface pressure gradients method.
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