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首页> 外文会议>2002 ASME Pressure Vessels and Piping Conference, Aug 5-9, 2002, Vancouver, British Columbia, Canada >ELABORATION OF A NUMERICAL MODEL FOR THE STUDY OF THE DAM RUPTURE WAVE DISPLACEMENT
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ELABORATION OF A NUMERICAL MODEL FOR THE STUDY OF THE DAM RUPTURE WAVE DISPLACEMENT

机译：大坝破裂波位移研究数值模型的建立

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摘要

The essential purpose assigned to this present research is the contribution to the development of a model numeric two-dimensional permitting the simulation of a transient flow to free surface, quickly varied, resulting of a total and instantaneous rupture of a dam in a rectangular channel. For that to make, we present in a first section, the representative mathematical model of this flow, based on Saint Venat equations two-dimensional. An algorithm in finite differences is developed then to resolve this system of equations. The algorithm for needs of our research is to fractional step, based on the numeric diagram of Mac Cormack. During this simulation, we put in evidence the evolution in the time, the height and the speed of the flow in different positions, and this until drains it of the dam. We are also interested to the survey of the certain parameter influence on the flow as the slope of the bottom, the roughness of Manning and the initial height of water in the reservoir. Finally to validate and to test performances of the model developed, we did several applications in the second section, then compared results gotten to the experimental and numeric results.
机译：分配给本研究的主要目的是对模型数值二维的发展做出了贡献，该模型允许对自由表面的瞬态流动进行仿真，快速变化，从而导致矩形通道中大坝的整体和瞬时破裂。为此，我们在第一部分中介绍了基于二维圣维纳特方程的该流的代表性数学模型。然后，开发了一种有限差分算法来求解该方程组。我们研究需要的算法是基于Mac Cormack的数字图表的分数步。在此模拟过程中，我们证明了在不同位置流动的时间，高度和速度的变化，直到排水将其排出坝为止。我们也有兴趣调查某些参数对流量的影响，例如底部的坡度，曼宁的粗糙度和水库中水的初始高度。最后，为了验证和测试所开发模型的性能，我们在第二部分中进行了一些应用，然后将得到的结果与实验和数值结果进行了比较。

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