Output-based error estimation and adaptive mesh refinement using viscous adjoint method

Hyoung Jin Kim, Kazuhiro Nakahashi

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

11 Citations (Scopus)

Abstract

An adjoint-based error estimation and grid adaptation study is conducted for three-dimensional viscous flows with unstructured hybrid meshes. The error in an integral output functional of interest is estimated by a dot product of the residual vector and adjoint variable vector. Regions to be adapted are selected based on the local error of each node. The adaptive regions are refined by the newest-vertex bisection refinement algorithm and subsequent hybrid mesh refinement strategies. The present procedure is applied to a three-dimensional transonic viscous flow around the ONERA M6 wing. The same level of prediction accuracy for drag is achieved with much less mesh points than uniformly refined fine meshes. It is found that residual smoothing strategy which was very effective for inviscid flow cases does not improve the accuracy of error estimation.

Original languageEnglish
Title of host publicationCollection of Technical Papers - 44th AIAA Aerospace Sciences Meeting
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
Pages16765-16781
Number of pages17
ISBN (Print)1563478072, 9781563478079
DOIs
Publication statusPublished - 2006
Event44th AIAA Aerospace Sciences Meeting 2006 - Reno, NV, United States
Duration: 9 Jan 200612 Jan 2006

Publication series

NameCollection of Technical Papers - 44th AIAA Aerospace Sciences Meeting
Volume22

Conference

Conference44th AIAA Aerospace Sciences Meeting 2006
Country/TerritoryUnited States
CityReno, NV
Period9/01/0612/01/06

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