Development and Verification of a Mesh Deformation Scheme For a Three Dimensional Ablative Material Solver

Aleksander L. Zibitsker, Joel A. McQuaid, Christoph Brehm, Alexandre Martin

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

4 Scopus citations

Abstract

Modeling ablation problems with realistic conditions requires not only high fidelity numerical models of the thermal response of the material, but also accurate and efficient schemes for mesh motion. This study presents the development and verification of a three-dimensional mesh motion scheme for the Kentucky Aerothermodynamics and Thermal-response System solver. In one-dimensional geometries the mesh motion is done via a simple linear contraction algorithm, while in higher dimensional cases, displacement of the nodes is interpolated using the radial basis function approach. Various aspects of the mesh motion scheme in 2D/3D cases are discussed such as the restriction of node motion on interface planes and axis, as well as enforcing node motion to stay strictly within a plane or edge. Performance of the implemented algorithm is presented using the Ablation Workshop test cases. Additionally, two important constraints of mesh motion, such as mass loss error at the surface and the geometric conservation law are explored and discussed.

Original languageEnglish
Title of host publicationAIAA SciTech Forum 2022
DOIs
StatePublished - 2022
EventAIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2022 - San Diego, United States
Duration: Jan 3 2022Jan 7 2022

Publication series

NameAIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2022

Conference

ConferenceAIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2022
Country/TerritoryUnited States
CitySan Diego
Period1/3/221/7/22

Bibliographical note

Funding Information:
The authors would like to recognize and show appreciation for the financial support provided by NASA Kentucky EPSCoR RA Award no. 80NSSC19M0144 (E. Stern technical monitor) and NASA EPSCoR R3 Award no. 80NSSC19M0084 (M. Barnhardt technical monitor).

Publisher Copyright:
© 2022, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.

ASJC Scopus subject areas

  • Aerospace Engineering

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