| 弯道水流数值模拟研究 |
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| 引用本文： | 刘玉玲,刘哲.弯道水流数值模拟研究[J].应用力学学报,2007,24(2):310-312. |
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| 作者姓名： | 刘玉玲 刘哲 |
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| 作者单位： | 西安理工大学,710048,西安 |
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| 摘 要： | 采用边界拟合坐标技术,生成边界处正交的曲线网格,在曲线坐标系中进行弯道水流数值计算。借鉴现有关于弯道水流流速分布的研究成果,对曲线坐标系平面二维浅水方程作了修正,修正后的方程组能够计入弯道环流引起的横向的动量交换,即考虑了二次流对流线弯曲的复杂水力特性的影响。通过连续弯道实例计算,验证了该模型的可靠性和实用性。
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| 关 键 词： | 边界拟合坐标技术 曲线网格 横向动量交换 二次流 |
| 文章编号： | 1000-4939（2007）02-0310-03 |
| 收稿时间： | 2005-01-06 |
| 修稿时间： | 2006-09-13 |
Numerical Simulation to Flows in Curved Channels |
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| Liu Yuling,Liu Zhe.Numerical Simulation to Flows in Curved Channels[J].Chinese Journal of Applied Mechanics,2007,24(2):310-312. |
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| Authors: | Liu Yuling Liu Zhe |
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| Abstract: | To modify the commonly-used two-dimensional horizontal shallow water model in a curvilinear coordinate system, the transverse momentum exchange from secondary flows in channel bends is considered, and the adopted curvilinear coordinate system is generated with boundary-fitted coordinate technology to evaluate a curvilinear grid orthogonal near the boundaries, and an example of flows through sequent bends confirms the reliability. |
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| Keywords: | boundary-fitted coordinate technology curvilinear grid transverse momentum exchange secondary flow |
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