Journal article
Parallel, sharp interface Eulerian approach to high-speed multi-material flows
Computers & fluids, Vol.83, pp.144-156
08/16/2013
DOI: 10.1016/j.compfluid.2012.06.024
Abstract
This paper describes the challenges in developing a parallel implementation of a sharp interface high-speed multi-material dynamics solver. To facilitate large scale computations the algorithm is designed to retain strict data localization on processors. A high-order conservative ENO scheme is used for calculating the numerical fluxes and level sets are used to define the objects immersed in the flow field. A modified ghost fluid method is used for interface treatment of embedded objects. The issues involved in parallelization of the moving boundary flow solver are presented with emphasis on strong shocks interacting with embedded interfaces (solid–fluid and solid–solid) in a three-dimensional compressible flow framework. The handling of moving boundaries tracked using a narrow-band level set technique leads to issues peculiar to the multi-processor environment. The solution to object passage between sub-domains and treatment of ghost regions for inter-processor communication are addressed in the current work. Example calculations for three-dimensional impact-penetration problems and shocked particulate flows are presented.
Details
- Title: Subtitle
- Parallel, sharp interface Eulerian approach to high-speed multi-material flows
- Creators
- A Kapahi - Department of Mechanical and Industrial Engineering, 3131 Seamans Center, The University of Iowa, Iowa City, IA 52242, USAJ Mousel - Department of Mechanical and Industrial Engineering, 3131 Seamans Center, The University of Iowa, Iowa City, IA 52242, USAS Sambasivan - Theoretical Division, Group T-5, MS-B284, Los Alamos National Laboratory, Los Alamos, NM 87545, USAH.S Udaykumar - Department of Mechanical and Industrial Engineering, 3131 Seamans Center, The University of Iowa, Iowa City, IA 52242, USA
- Resource Type
- Journal article
- Publication Details
- Computers & fluids, Vol.83, pp.144-156
- DOI
- 10.1016/j.compfluid.2012.06.024
- ISSN
- 0045-7930
- eISSN
- 1879-0747
- Publisher
- Elsevier Ltd
- Language
- English
- Date published
- 08/16/2013
- Academic Unit
- Injury Prevention Research Center; Mechanical Engineering
- Record Identifier
- 9984121866302771
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