Roller

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Surface Roller Model in CMS - UNDER CONSTRUCTION

Governing Equation

The surface roller model is simulated as

   \frac{\partial ( c S_r  \cos \theta ) }{\partial x }+\frac{\partial ( c S_r  \sin \theta ) }{\partial y } = -D_r + f_e D_w (1)

where  S_r is the roller energy,  c =\sqrt{g h } are the roller propagation velocities, D_r is the roller dissipation, D_w is the wave dissipation (from CMS-Wave), and f_e is an efficiency factor between 0 and 1 (default 1) which determines how much wave energy dissipation that goes into the roller.

References

Buttolph, A. M., C. W. Reed, N. C. Kraus, N. Ono, M. Larson, B. Camenen, H. Hanson, T. Wamsley, and A. K. Zundel. (2006). “Two-dimensional depth-averaged circulation model CMS-M2D: Version 3.0, Report 2: Sediment transport and morphology change.” Coastal and Hydraulics Laboratory Technical Report ERDC/CHL TR-06-9. Vicksburg, MS: U.S. Army Engineer Research and Development Center, U.S.A.


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