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Kwak, Sang Kyu
Kyu’s MolSim Lab @ UNIST
Research Interests
  • Molecular modeling and simulation, statistical thermodynamics, molecular physics


Higher-order Galilean-invariant lattice Boltzmann model for microflows: Single-component gas

DC Field Value Language Yudistiawan, Wahyu Perdana ko Kwak, Sang Kyu ko Patil, D. V. ko Ansumali, Santosh ko 2014-10-02T08:51:03Z - 2014-10-02 ko 2010-10 ko
dc.identifier.citation PHYSICAL REVIEW E, v.82, no.4, pp.1 - 18 ko
dc.identifier.issn 2470-0045 ko
dc.identifier.uri -
dc.description.abstract We introduce a scheme which gives rise to additional degree of freedom for the same number of discrete velocities in the context of the lattice Boltzmann model. We show that an off-lattice D3Q27 model exists with correct equilibrium to recover Galilean-invariant form of Navier-Stokes equation (without any cubic error). In the first part of this work, we show that the present model can capture two important features of the microflow in a single component gas: Knudsen boundary layer and Knudsen Paradox. Finally, we present numerical results corresponding to Couette flow for two representative Knudsen numbers. We show that the off-lattice D3Q27 model exhibits better accuracy as compared to more widely used on-lattice D3Q19 or D3Q27 model. Finally, our construction of discrete velocity model shows that there is no contradiction between entropic construction and quadrature-based procedure for the construction of the lattice Boltzmann model. ko
dc.description.statementofresponsibility open -
dc.language 영어 ko
dc.publisher AMER PHYSICAL SOC ko
dc.title Higher-order Galilean-invariant lattice Boltzmann model for microflows: Single-component gas ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-78651315779 ko
dc.identifier.wosid 000282510400005 ko
dc.type.rims ART ko
dc.description.wostc 25 *
dc.description.scopustc 20 * 2015-05-06 * 2014-10-02 *
dc.identifier.doi 10.1103/PhysRevE.82.046701 ko
dc.identifier.url ko
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