B111 保存則を満たす非静力学モデルの差分スキーム

概要

論文の詳細を見る
A new dynamical scheme with the conservative forms of the equations of density, momentums and internal energy is proposed for the non-hydrostatic models. With this scheme, the conservation of mass is satisfied within round-off errors, and the conservation of total energy is approximately satisfied by discretizing the equation of the internal energy. Additionally, with an iterative procedure and vertical discretization, the exact conservations of total energy and total entropy are also satisfied. This scheme is incorporated into a non-hydrostatic model with the horizontally explicit and vertically implicit time integration scheme for sound waves. Various numerical experiments for the dry atmosphere are performed. The numerical results show that the conservative properties are well satisfied.
日本流体力学会の論文
2001-07-31