Adjoint Optimization Combined with Mesh Morphing for CFD Applications

This presentation was made at NAFEMS UK Conference 2018, "Taking Engineering Analysis and Simulation to the Next Level".

The NAFEMS UK Conference 2018 brought together all those involved in analysis and simulation from every corner of industry and academia, giving them an opportunity to advance their knowledge, give their organisations a competitive advantage, and a chance to be part of improving the technology itself.

Resource Abstract

This paper aims to investigate the applicability of Adjoint optimization combined with mesh morphing to the industrial practice, by the integration of commonly used commercial simulation software.

Adjoint techniques are efficient optimization methods in terms of accuracy of results and short computational cost, but normally are limited to in-house simulation codes, that allow the calculation of partial derivatives of the observable quantities within the model simulation. Commercial software such as ANSYS Fluent make available derivatives in function of mesh points, and combined with a mesh morphing tool as RBF Morph, derivatives can be automatically computed in function of design parameters, such as the amplifications of RBF solutions that control the shape of the mesh.

Integrating these software in the optimization platform modeFRONTIER from ESTECO, it becomes possible to apply efficient gradient based optimization algorithms, with the big advantage of a full automatic process integration, and a very short number of design simulations to optimize the objective function. Methodology details and CFD application benchmarks will be illustrated

Document Details

AuthorElango. A
Date 18th October 2018
OrganisationESTECO North America, Inc.


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