- 著者
-
Tomohoiro Tanaka
Hidekazu Yoshioka
- 出版者
- Japan Society for Simulation Technology
- 雑誌
- 日本シミュレーション学会英文誌 (ISSN:21885303)
- 巻号頁・発行日
- vol.4, no.2, pp.162-175, 2017 (Released:2018-06-30)
- 参考文献数
- 21
- 被引用文献数
-
1
3
The local inertial equation (LIE) as a simple mathematical model has been widely used for flood simulation. So far, the maximum allowable time step of the discretized LIE with the conventional semi-implicit scheme has been believed to follow the standard Courant-Friedrichs-Lewy condition. However, we demonstrate that this is not true from the viewpoint of a numerical stability analysis considering the model non-linearity. In addition, a fully-implicit variant of the scheme with higher stability is presented, indicating its practical advantages.