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LATTICE BOLTZMANN SCHEME TO SIMULATE TWO-DIMENSIONAL FLUID TRANSIENTS 被引量:5

LATTICE BOLTZMANN SCHEME TO SIMULATE TWO-DIMENSIONAL FLUID TRANSIENTS
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摘要 This paper proposes a lattice Boltzmann scheme to simulate two-dimensionalfluid transients. A set of multi-scale equations, which characterize the relations between thelattice Boltzmann equation and its corresponding macroscopic equations, were derived by using theChapman-Enskog expansion. Based on these multi-scale equations and the basic equations ofmultidimensional fluid transients, two special lattice Boltzmann models were established. Numericalsimulation of one-dimensional pressure wave transmission and reflection, two-dimensional wave cornerdiffraction and hydraulic transients in a concrete spiral case show that the Lattice BoltzmannMethod (LBM) is a feasible and promising approach to simulate multidimensional transient flows. This paper proposes a lattice Boltzmann scheme to simulate two-dimensionalfluid transients. A set of multi-scale equations, which characterize the relations between thelattice Boltzmann equation and its corresponding macroscopic equations, were derived by using theChapman-Enskog expansion. Based on these multi-scale equations and the basic equations ofmultidimensional fluid transients, two special lattice Boltzmann models were established. Numericalsimulation of one-dimensional pressure wave transmission and reflection, two-dimensional wave cornerdiffraction and hydraulic transients in a concrete spiral case show that the Lattice BoltzmannMethod (LBM) is a feasible and promising approach to simulate multidimensional transient flows.
出处 《Journal of Hydrodynamics》 SCIE EI CSCD 2003年第2期19-23,共5页 水动力学研究与进展B辑(英文版)
基金 ThisworkwasSupportedbytheNationalNaturalScienceFoundationofChina .(GrantNo :5 0 0 0 90 0 7)
关键词 two-dimensional fluid transients numerical simulation lattice boltzmannmethod (LBM) two-dimensional fluid transients numerical simulation lattice boltzmannmethod (LBM)
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  • 1熊盛武,武汉汽车工业大学学报,1997年,1期
  • 2Qian Y H,Europhys Lett,1992年,17期,479页

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