CMSFlow:Equilibrium Total Load
Equilibrium Total load Transport model
The singlesized sediment transport model described in Sánchez and Wu (2011a) was extended to multiplesized sediments within CMS by Sánchez and Wu (2011b). In this model, the sediment transport is separated into current and waverelated transports. The transport due to currents includes the stirring effect of waves, and the waverelated transport includes the transport due to asymmetric oscillatory wave motion as well as steady contributions by Stokes drift, surface roller, and undertow. The currentrelated bed and suspended transports are combined into a single totalload transport equation, thus reducing the computational costs and simplifying the bed change computation. The 2DH transport equation for the currentrelated total load is
Equation 250 ??????
Sediment Mass Balance Equation
The transport equation for the suspended load is given by

(1) 
where is the sediment porosity, and is a bedslope coefficient.
Boundary Conditions
Numerical Methods
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). “Twodimensional depthaveraged circulation model CMSM2D: Version 3.0, Report 2: Sediment transport and morphology change.” Coastal and Hydraulics Laboratory Technical Report ERDC/CHL TR069. Vicksburg, MS: U.S. Army Engineer Research and Development Center, U.S.A.
 Camenen, B., and Larson, M. (2007). “A unified sediment transport formulation for coastal inlet application”. Technical Report ERDCCHL CR0701. Vicksburg, MS: U.S. Army Engineer Research and Development Center, U.S.A
 Soulsby, R. L. (1997). "Dynamics of marine sands, a manual for practical applications". H. R. Wallingford, UK: Thomas Telford.
 Watanabe, A. (1987). “3dimensional numerical model of beach evolution”. Proc. Coastal Sediments ’87, ASCE, 802817.
 Wu, W. (2004).“Depthaveraged 2D numerical modeling of unsteady flow and nonuniform sediment transport in open channels”. J. Hydraulic Eng., ASCE, 135(10), 1013–1024.
 van Rijn, L. C. (1985). “Flume experiments of sedimentation in channels by currents and waves.” Report S 347II, Delft Hydraulics laboratory, Deflt, Netherlands.
 Zhu, J. (1991). “A low diffusive and oscillationfree convection scheme”. Com. App. Num. Meth., 7, 225232.
 Zundel, A. K. (2000). “Surfacewater modeling system reference manual”. Brigham Young University, Environmental Modeling Research Laboratory, Provo, UT.
External Links
 Aug 2006 TwoDimensional DepthAveraged Circulation Model CMSM2D: Version 3.0, Report 2, Sediment Transport and Morphology Change [1]
 Aug 2008 CMSWave: A Nearshore Spectral Wave Processes Model for Coastal Inlets and Navigation Projects [2]