滑坡涌浪的数值计算及试验研究

本文从非恒定流方程出发,导出了滑坡涌浪的基本方程,建立了求解滑坡涌浪的数值模型,并通过物理模型的试验研究,论证了数值模型的合理性.试验结果表明,初始断面最大涌浪高主要与滑坡体在单位时间内入水的体积成正比,涌浪高随涌浪传播距离的增加而迅速哀减,河道糙率对其的影响并不突出,涌浪遇壁爬高及反射主要与壁面坡角及水深有关.本文建立的数学模型可用来对可能的滑坡涌浪进行一维和二维近似计算,模型试验结果可用来估算滑坡涌浪.

Experimental Study of Slidewaves in Reservoirs and Numerical Calculation

The study of slidewaves in this paper is carried out by the derivation of basic equations of the slidewaves and the establishment of numerical models for solving these equations. The study is verified by the results of experiments. It is indicated in this paper that the maximum wave height at the initial section increases with the land slide's volume sliding into water in unit time, it decreases with the increase of the distance from the initial section, the climb on the wall and reflection are related with the slopes of the wall and water depth in front of it. The numerical models and experimental results in this paper can be applied to forecasting the possible slidewaves.