Shape Optimization Using Adjoint Variable Method for Reducing the Surface Force of an Object under Unsteady Flow

• Published in: Theoretical and Applied Mechanics Japan Vol. 56; pp. 243 - 257
• Main Authors: SHINOHARA, Kazunori, OKUDA, Hiroshi, ITO, Satoshi, NAKAJIMA, Norihiro, IDA, Masato
• Format: Journal Article
• Language: English
• Published: Tokyo National Committee for IUTAM 2008; Japan Science and Technology Agency

To obtain the optimal shape of a 3D object minimizing the fluid surface force, an adjoint variable method based on the variational principle is formulated and applied to the finite element method. This method is a type of sensitivity analysis (the sensitivity is the gradient of the Lagrange function...