THE　RESEARCH　OF　NATURAL　THREE－DIMENSIONAL　NUMERICAL　MODEL　FOR　WATER－SEDIMENT　TWO－PHASE　FLOW　AND　SEDIMENT　MOVING　REGULARITY　NEAR　THE　RIVER　BOUNDARY  

作　　者：Fang Hong-wei(Department of Hydraulic Engineering, Tsinghua University, Bijing 100084,P.R.China) 

出　　处：《Journal of Hydrodynamics》1994年第2期87-90,共4页水动力学研究与进展B辑（英文版）

摘　　要：This paper deduces the variable-density equations and boundary conditions in the general curve coordinate system; A new 27-Point finite analytic discretization scheme is derived utilizing the superposition of the local analytic solutions of linearized two-dimensional convection-diffujon equations; The competent velocity formula of non-uniform bed sediment near the rivur boundary is also researched in the paper.This paper deduces the variable-density equations and boundary conditions in the general curve coordinate system; A new 27-Point finite analytic discretization scheme is derived utilizing the superposition of the local analytic solutions of linearized two-dimensional convection-diffujon equations; The competent velocity formula of non-uniform bed sediment near the rivur boundary is also researched in the paper.

关 键 词：variable-density turbulence finite analytic scheme competent velocity. 

分 类 号：TV148[水利工程—水力学及河流动力学]