DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Sanghun | ko |
dc.contributor.author | Jun, Eunji | ko |
dc.date.accessioned | 2024-05-28T14:00:09Z | - |
dc.date.available | 2024-05-28T14:00:09Z | - |
dc.date.created | 2024-05-28 | - |
dc.date.created | 2024-05-28 | - |
dc.date.created | 2024-05-28 | - |
dc.date.issued | 2024-06 | - |
dc.identifier.citation | JOURNAL OF COMPUTATIONAL PHYSICS, v.506 | - |
dc.identifier.issn | 0021-9991 | - |
dc.identifier.uri | http://hdl.handle.net/10203/319552 | - |
dc.description.abstract | The direct simulation Monte Carlo (DSMC) method is widely used for numerical solutions of the Boltzmann equation. However, the associated computational cost becomes prohibitive in the nearcontinuum regime. To address this limitation, the particle-based Fokker-Planck (FP) method has been extensively studied in the past decade. The FP equation, which describes Brownian motion, does not require resolution of the collisional time and length scales. While several monatomic FP models have been proposed, the modeling of diatomic gases within the FP framework has received limited attention. In this paper, we propose a new diatomic kinetic model, named the Fokker-Planck-Master (FPM) model, which can accurately describe energy exchanges between translational-rotational and translational-vibrational modes. The FPM model combines the FP equation to describe the evolution of translational and rotational modes, and the master equation to describe the evolution of the vibrational modes. The numerical test cases include relaxation problems, Couette flows, and hypersonic flows past a vertical flat plate. The results demonstrate that the FPM model shows good agreement with both analytical and DSMC solutions. | - |
dc.language | English | - |
dc.publisher | ACADEMIC PRESS INC ELSEVIER SCIENCE | - |
dc.title | A stochastic Fokker–Planck–Master model for diatomic rarefied gas flows | - |
dc.type | Article | - |
dc.identifier.wosid | 001218266700001 | - |
dc.identifier.scopusid | 2-s2.0-85188749147 | - |
dc.type.rims | ART | - |
dc.citation.volume | 506 | - |
dc.citation.publicationname | JOURNAL OF COMPUTATIONAL PHYSICS | - |
dc.identifier.doi | 10.1016/j.jcp.2024.112940 | - |
dc.contributor.localauthor | Jun, Eunji | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Rarefied diatomic gas | - |
dc.subject.keywordAuthor | Fokker-Planck equation | - |
dc.subject.keywordAuthor | Master equation | - |
dc.subject.keywordAuthor | Particle Monte-Carlo method | - |
dc.subject.keywordAuthor | Boltzmann equation | - |
dc.subject.keywordAuthor | Direct simulation Monte-Carlo | - |
dc.subject.keywordPlus | BOLTZMANN-EQU | - |
dc.subject.keywordPlus | ATIONALGORITHM | - |
dc.subject.keywordPlus | SLIT | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.