An accurate momentum advection scheme for a z-level coordinate models |
| |
| Authors: | Olga Kleptsova Guus S Stelling Julie D Pietrzak |
| |
| Institution: | (1) Faculty of Civil Engineering and Geosciences, Delft University of Technology, Stevinweg 1, 2628CN Delft, The Netherlands |
| |
| Abstract: | In this paper, we focus on a conservative momentum advection discretisation in the presence of z-layers. While in the 2D case conservation of momentum is achieved automatically for an Eulerian advection scheme, special
attention is required in the multi-layer case. We show here that an artificial vertical structure of the flow can be introduced
solely by the presence of the z-layers, which we refer to as the staircase problem. To avoid this staircase problem, the z-layers have to be remapped in a specific way. The remapping procedure also deals with the case of an uneven number of layers
adjacent to a column side, thus allowing one to simulate flooding and drying phenomena in a 3D model. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
