Improved transient-fixed-point mesh adaptation using orthogonality-preserving metric intersection

M. Najafiyazdi, W. G. Habashi, M. Fossati

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

4 Citations (Scopus)

Abstract

This paper deals with metric intersection methods used to combine solutions at different time steps for unsteady mesh adaptation. An Orthogonality preserving metric intersection technique is used to improve the original transient-fixed-point mesh adaptation scheme. The proposed scheme combines metric tensors computed over solutions at different time steps to obtain their intersection. Then, the mesh adaptation code uses the intersection metric as a measure to approximate the error for unsteady adaptation purpose. The goal is to reach an optimized mesh for the fixed-point problem of coupled solution-mesh at every time step. A 2D blast equation problem, the classical case of Mach 3 wind tunnel with forward facing step and viscous flow over multi-dimensional airfoil are used to illustrate the performance of the proposed scheme.

LanguageEnglish
Title of host publication20th AIAA Computational Fluid Dynamics Conference 2011
Place of PublicationRed Hook, NY
Publication statusPublished - 1 Dec 2011
Event20th AIAA Computational Fluid Dynamics Conference 2011 - Honolulu, HI, United States
Duration: 27 Jun 201130 Jun 2011

Conference

Conference20th AIAA Computational Fluid Dynamics Conference 2011
CountryUnited States
CityHonolulu, HI
Period27/06/1130/06/11

Fingerprint

Viscous flow
Airfoils
Mach number
Wind tunnels
Tensors

Keywords

  • fluid dynamics
  • mesh adaptation
  • airfoils

Cite this

Najafiyazdi, M., Habashi, W. G., & Fossati, M. (2011). Improved transient-fixed-point mesh adaptation using orthogonality-preserving metric intersection. In 20th AIAA Computational Fluid Dynamics Conference 2011 Red Hook, NY.
Najafiyazdi, M. ; Habashi, W. G. ; Fossati, M. / Improved transient-fixed-point mesh adaptation using orthogonality-preserving metric intersection. 20th AIAA Computational Fluid Dynamics Conference 2011. Red Hook, NY, 2011.
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Najafiyazdi, M, Habashi, WG & Fossati, M 2011, Improved transient-fixed-point mesh adaptation using orthogonality-preserving metric intersection. in 20th AIAA Computational Fluid Dynamics Conference 2011. Red Hook, NY, 20th AIAA Computational Fluid Dynamics Conference 2011, Honolulu, HI, United States, 27/06/11.

Improved transient-fixed-point mesh adaptation using orthogonality-preserving metric intersection. / Najafiyazdi, M.; Habashi, W. G.; Fossati, M.

20th AIAA Computational Fluid Dynamics Conference 2011. Red Hook, NY, 2011.

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

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N2 - This paper deals with metric intersection methods used to combine solutions at different time steps for unsteady mesh adaptation. An Orthogonality preserving metric intersection technique is used to improve the original transient-fixed-point mesh adaptation scheme. The proposed scheme combines metric tensors computed over solutions at different time steps to obtain their intersection. Then, the mesh adaptation code uses the intersection metric as a measure to approximate the error for unsteady adaptation purpose. The goal is to reach an optimized mesh for the fixed-point problem of coupled solution-mesh at every time step. A 2D blast equation problem, the classical case of Mach 3 wind tunnel with forward facing step and viscous flow over multi-dimensional airfoil are used to illustrate the performance of the proposed scheme.

AB - This paper deals with metric intersection methods used to combine solutions at different time steps for unsteady mesh adaptation. An Orthogonality preserving metric intersection technique is used to improve the original transient-fixed-point mesh adaptation scheme. The proposed scheme combines metric tensors computed over solutions at different time steps to obtain their intersection. Then, the mesh adaptation code uses the intersection metric as a measure to approximate the error for unsteady adaptation purpose. The goal is to reach an optimized mesh for the fixed-point problem of coupled solution-mesh at every time step. A 2D blast equation problem, the classical case of Mach 3 wind tunnel with forward facing step and viscous flow over multi-dimensional airfoil are used to illustrate the performance of the proposed scheme.

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Najafiyazdi M, Habashi WG, Fossati M. Improved transient-fixed-point mesh adaptation using orthogonality-preserving metric intersection. In 20th AIAA Computational Fluid Dynamics Conference 2011. Red Hook, NY. 2011