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Development of an efficient aerodynamic shape optimization framework. (English) Zbl 1168.76046

Summary: Although many efforts have been made to develop an aerodynamic shape optimization (ASO) framework, iterative grid generation for complex configurations within the optimization loop has still been a critical barrier. In this paper, an efficient ASO framework is developed by integrating a parametric grid generator, an optimization toolkit, and a flow solver. A geometry-grid template toolkit is developed to address the need to produce a large number of grids in a timely manner for the parametric design study. We use an object-oriented optimization toolkit that allows a flexible and extensible interfacing with user-specific codes. An in-house full Navier-Stokes flow solver is developed and used in the framework. Code integration is achieved using a black-box interface with script files. Two ASO applications and their optimum solutions are presented to demonstrate the success of this framework.

MSC:

76N25 Flow control and optimization for compressible fluids and gas dynamics
76M12 Finite volume methods applied to problems in fluid mechanics

Software:

DAKOTA; CONMIN; MPI; METIS
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References:

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