Simulation of rarefied gas flow in slip and transitional regimes by the lattice Boltzmann method
In this paper, a lattice Boltzmann method (LBM) based simulation of microscale flow has been carried out, for various values of Knudsen number. The details in determining the parameters critical for LBM applications in microscale flow are provided. Pressure distributions in the slip flow regime are...
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2010
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my.utm.260232018-10-21T04:30:06Z http://eprints.utm.my/id/eprint/26023/ Simulation of rarefied gas flow in slip and transitional regimes by the lattice Boltzmann method Sidik, N. A. C. Horng, N. C. Mussa, M. Abdullah, S. TJ Mechanical engineering and machinery In this paper, a lattice Boltzmann method (LBM) based simulation of microscale flow has been carried out, for various values of Knudsen number. The details in determining the parameters critical for LBM applications in microscale flow are provided. Pressure distributions in the slip flow regime are compared with the analytical solution based on the Navier-Stokes equationwith slip-velocity boundary condition. Satisfactory agreements have been achieved. Simulations are then extended to transition regime (Kn = 0.15) and compared with the same analytical solution. The results show some deviation from the analytical solution due to the breakdown of continuum assumption. From this study, we may conclude that the lattice Boltzmann method is an efficient approach for simulation of microscale flow. ISSR Journals 2010 Article PeerReviewed Sidik, N. A. C. and Horng, N. C. and Mussa, M. and Abdullah, S. (2010) Simulation of rarefied gas flow in slip and transitional regimes by the lattice Boltzmann method. CFD Letters, 2 (2). pp. 66-74. ISSN 2180-1363 http://www.issres.net/journal/index.php/cfdl/article/view/S%092180%091363%0910%0922%09066%09X |
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TJ Mechanical engineering and machinery Sidik, N. A. C. Horng, N. C. Mussa, M. Abdullah, S. Simulation of rarefied gas flow in slip and transitional regimes by the lattice Boltzmann method |
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In this paper, a lattice Boltzmann method (LBM) based simulation of microscale flow has been carried out, for various values of Knudsen number. The details in determining the parameters critical for LBM applications in microscale flow are provided. Pressure distributions in the slip flow regime are compared with the analytical solution based on the Navier-Stokes equationwith slip-velocity boundary condition. Satisfactory agreements have been achieved. Simulations are then extended to transition regime (Kn = 0.15) and compared with the same analytical solution. The results show some deviation from the analytical solution due to the breakdown of continuum assumption. From this study, we may conclude that the lattice Boltzmann method is an efficient approach for simulation of microscale flow. |
| format |
Article |
| author |
Sidik, N. A. C. Horng, N. C. Mussa, M. Abdullah, S. |
| author_facet |
Sidik, N. A. C. Horng, N. C. Mussa, M. Abdullah, S. |
| author_sort |
Sidik, N. A. C. |
| title |
Simulation of rarefied gas flow in slip and transitional regimes by the lattice Boltzmann method |
| title_short |
Simulation of rarefied gas flow in slip and transitional regimes by the lattice Boltzmann method |
| title_full |
Simulation of rarefied gas flow in slip and transitional regimes by the lattice Boltzmann method |
| title_fullStr |
Simulation of rarefied gas flow in slip and transitional regimes by the lattice Boltzmann method |
| title_full_unstemmed |
Simulation of rarefied gas flow in slip and transitional regimes by the lattice Boltzmann method |
| title_sort |
simulation of rarefied gas flow in slip and transitional regimes by the lattice boltzmann method |
| publisher |
ISSR Journals |
| publishDate |
2010 |
| url |
http://eprints.utm.my/id/eprint/26023/ http://www.issres.net/journal/index.php/cfdl/article/view/S%092180%091363%0910%0922%09066%09X |
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