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I am running some tests for cases with simplified physics. At this moment, in the moment I only retain inertia terms, linear shear stresses and pressure gradient. Also the continuity equation has been linearized. The keywords that I deemed relevant to do so are


comforted by this post. Please correct/integrate as applicable.

Advection and second derivatives are out of the way for the time being. My focus now is on the parameters that control the time integration and spatial interpolation. These are typically keywords in the family of numerical parameters and related specifications. I would like to identify and control spurious effects.

Which time integration and spatial interpolation options are acknowledged to show dispersive or dissipative behaviour also while solving a linearized problem?
Conversely, which parameters are devoid of it or very much closely so?

I am working under the invocation
Thanks for thinking along

Hello

Keywords that manages time discretization for the full equations are also used for the linearized problem. Mainly, you can handle the implicitation coefficients (for velocity, and water depth) and the time step variation (variable time step or not and desired Courant number).

I hope that this helps

with my best regards

Riadh