【摘要】 本文介绍的二维非恒定流数值模型,采用无结构不规则网格,充分考虑了分蓄洪区内影响洪水演进的各种主要因素。通过1954年荆江分洪区实测分洪过程的模拟验证,表明模型不仅计算精度显著提高,计算速度也大为加快,达到了为分洪调度指挥服务的要求,具有较强的实用性。更多还原

【Abstract】 This paper presents a numerical model for 2-D unsteady flow with unstructured and irregu- lar grids.All main factors that influnce flood routing in large detention basin have been taken in- to account.Comparing the numerical simulation results with the observed data in jingjiang re- tarding basin in 1954.it is proved that the model not only has been improved with its accuracy. but also has higher speed,which can satisfy the need for flood forecasting.更多还原