This work presents a new finite volume Godunov-type model for predicting morphological changes under the rapidly varying flood conditions with wetting and drying. The model solves the coupled shallow water and Exner e...This work presents a new finite volume Godunov-type model for predicting morphological changes under the rapidly varying flood conditions with wetting and drying. The model solves the coupled shallow water and Exner equations, with the interface fluxes evaluated by an Harten-Lax-van Leer-Contact （HLLC） approximate Riemann solver. Well-balanced solution is achieved using the surface gradient method and wetting and drying are handled by a non-negative reconstruction approach. The new model is validated against several theoretical benchmark tests and promising results are obtained.展开更多
Editor： Hopton and MacPherson（1） are correct in noting that（1） attempts at masking are not always successful, hence（2） unsubstantiated claims of masking are not convincing, hence（3） guidance to cease assessin...Editor： Hopton and MacPherson（1） are correct in noting that（1） attempts at masking are not always successful, hence（2） unsubstantiated claims of masking are not convincing, hence（3） guidance to cease assessing the success of masking should not be embraced. I take exception, however, to the authors calling this last point ＂controversial＂. I will concede that it is, in fact, controversial in the sense that tobacco was controversial at a time when certain medical groups still endorsed tobacco,展开更多
基金supported by the UK Engineering and Physical Sciences Research Council(Grant No.EP/F030177/1)
文摘This work presents a new finite volume Godunov-type model for predicting morphological changes under the rapidly varying flood conditions with wetting and drying. The model solves the coupled shallow water and Exner equations, with the interface fluxes evaluated by an Harten-Lax-van Leer-Contact （HLLC） approximate Riemann solver. Well-balanced solution is achieved using the surface gradient method and wetting and drying are handled by a non-negative reconstruction approach. The new model is validated against several theoretical benchmark tests and promising results are obtained.
文摘Editor： Hopton and MacPherson（1） are correct in noting that（1） attempts at masking are not always successful, hence（2） unsubstantiated claims of masking are not convincing, hence（3） guidance to cease assessing the success of masking should not be embraced. I take exception, however, to the authors calling this last point ＂controversial＂. I will concede that it is, in fact, controversial in the sense that tobacco was controversial at a time when certain medical groups still endorsed tobacco,
