Finite volume method with reconstruction and bottom modification for open channel flows: An application to Yom River, Thailand

Abstract

ABSTRACTFinite volume method with reconstruction and bottom modification techniques for simulating open channel flows in arbitrary cross-sectional areas is presented. These techniques are introduced to handle the difficulty in approximating water depth at wet/dry areas. Various numerical experiments with source terms are demonstrated to confirm the accuracy of numerical scheme. Further, we have applied the present method to simulate open channel flow in the Yom River, Phrae Province, Thailand. The simulation results are compared with measured data.