Rhee, D.S.; Lyu, S.W., and Song, C.G., 2018. Numerical computation of rapid flow over steep terrain using total acceleration concept. In: Shim, J.-S.; Chun, I., and Lim, H.S. (eds.), Proceedings from the International Coastal Symposium (ICS) 2018 (Busan, Republic of Korea). Journal of Coastal Research, Special Issue No. 85, pp. 986–990. Coconut Creek (Florida), ISSN 0749-0208.

To model the rapid mass movement over steep slope under the framework of shallow water flow, total acceleration method (TAM hereafter) was adopted, and an extended two-dimensional hydrodynamic flow model was developed. This approach can be regarded as gravity modeling as eddy viscosity in turbulence modeling. It was found that the developed flow model with total acceleration method gave satisfactory results in predicting the front propagation speed, flow depth, and bed-shear stress under significant non-hydrostatic condition. TAM reproduced considerable difference in describing the routing of fast flow compared with usual 2DH model.