Author(s): Thomas Molls; Gang Zhao
Linked Author(s): Thomas Molls
Keywords: No Keywords
Abstract: Supercritical flow in a channel with a wavy sidewall is numerically simulated by solving the 2D depth-averaged equations using a finite-difference model DASH (Molls and Chaudhry 1995, Molls et. al. 1995). Time differencing is accomplished using a second-order accurate Beam and Warming approximation; while, the spatial derivatives are approximated by second-order accurate central differencing. The equations are solved in transformed computational coordinates using an alternating-direction-implicit (ADI) scheme. The turbulent and depth-averaging stresses are neglected. Vector and contour plots are used to qualitatively depict the flow. Near the straight sidewall, the numerical results are in close accordance with experimental data obtained by Mizumura (1995).
Year: 1997