差分格子 BOLTZMANN 法による回転流体における慣性波の解析(流体工学, 流体機械)
2001 年 67 巻 663 号 p. 2662-2669
詳細
2001 年 67 巻 663 号 p. 2662-2669
Effect of the body force in the finite difference lattice Boltzmann method (FDLBM) is studied. Inertial waves in a rotating field are calculated by FDLBM, the 3D15V lattice BGK model with introducing the Coriolis force in the local equilibrium distribution function of the collision term. The phase velocity and the group velocity of the inertial wave are compared with the theoretical one obtained by the dispersion relation of an incompressible inviscid fluid, and both agree well.
