Lattice Boltzmann方法应用实例── 一维溃坝波模拟  

APPLICATION OF THE LATTICE BOLTZMANN METHOD-ONE-DIMENSIONAL DAM BREAK SIMULATION

作　　者：程永光[1] 

机构地区：[1]武汉水利电力大学,武汉430072

出　　处：《力学与实践》2000年第1期47-48,共2页Mechanics in Engineering

摘　　要：通过分析ＬａｔｔｉｃｅＢｏｌｔｚｍａｎｎ（ＬＢ）方法的多尺度方程和一维浅水波方程，建立了计算一维明渠非恒定流的ＬＢ模型．对一维溃坝波动这一典型应用实例进行了模拟分析．结果与Ｐｒｅｉｓｓｍａｎｎ隐格式及解析解十分一致，说明将ＬＢ方法引入实际的一维明渠非恒定流计算是可行的．A Lattice Boltzmann model for onedimensional unsteady open channel flows is established, by analyzing the multi-scale equations of theLB method and the one-dimensional shallow waterequations. One-dimensional dam break, a classical and practical problem, is simulated by the LBscheme. The good agreement of LB results withthe results of implicit Preissmann scheme and theanalytical solution shows that the LB method isa feasible and accurate approach to simulate onedimensional unsteady open channel flows in engineering.

关 键 词：溃坝波 模拟 LATTICE BOLTZMANN方法 

分 类 号：TV139.231[水利工程—水力学及河流动力学]