大型浅水湖泊风生流场的数值模拟研究

针对大型浅水湖泊水平尺度远大于垂向尺度,水力参数在垂直方向变化要小于水平方向变化,符合浅水流动的特点,采用水深平均的紊流模型模拟大型浅水湖泊的风生流场.在非结构化网格上采用有限体积法离散控制方程,提高了计算精度和效率,运用SIMPLEC算法进行数值求解,克服了为简化计算对二维物理机制常采用-维化数值处理的缺陷,使计算的流场更符合实际流场,并模拟分析了不同风向,风速下博斯腾湖大湖区水流运动特性.

The study of the numerical simulation in large-scale shallow lake

For large-scale lakes,the horizontal dimension is much larger than the vertical,the changing of hydraulic parameters in vertical direction is less than the horizontal,in line with the characteristics of shallow water flow,so the average water depth of the turbulence model is used to simulate large shallow lakes of wind-flow field.The finite volume method of discrete control equation in the unstructured grid improves the accuracy and efficiency calculation.Numerical Solution with SIMPLEC algorithm overcomes ...