基于演化算法的非恒定水沙过程概化技术

【英文篇名】Generalization method of hydrologic data with evolution algorithm

【作者】 罗秋实 刘士和 徐腾飞 张晓玉

Author LUO Qiushi1,3,LIU Shihe2,XU Tengfei3,ZHANG Xiaoyu4(1.Postdoctoral Research Institute of Yellow River Engineering Consulting Co.Ltd;Zhengzhou 450003,China; 2.School of Water Resources and Hydropower,Wuhan University,Wuhan 430072,China; 3.Yellow River Institute of Hydraulic Research,Zhengzhou 450003,China; 4.Yellow River Engineering Consulting Co.Ltd;Zhengzhou 450003,China)

【机构】 黄河勘测规划设计有限公司博士后科研工作站 黄河水利科学研究院 武汉大学水利水电学院 黄河勘测规划设计有限公司

【摘要】 将非恒定水沙过程概化为梯级恒定的水沙过程是进行长系列的河床冲淤变形计算时,为减小计算工作量常用的处理方法.水沙过程概化是保证数模计算精度的一个关键环节,但是目前的概化方法多以人工概化为主,带有较大的主观性.基于演化算法(也称遗传算法)的思想,提出了新的概化方法,并基于RSS河流数值模拟系统中的平面二维水沙数学模型探讨该方法在河流数值模拟中的应用更多还原

Abstract To reduce the computational cost,the unsteadyflow was usually treated as a serious of stepwise steady flow in river bed deformation calculation.It’s obviously that the generalization method will affect the calculation precision;but until now,the hydrologic data was usually generalized manually which is adjective and random.To reduce the shortcoming of the former methods,an efficient method is suggested based on the evolutionary algorithms.The new method is employed for numerical simulation with ... 

【关键词】 演化算法 水沙过程概化 数值模拟

Key words evolution algorithm generalization method of hydrologic data numerical simulation

【文献出处】 武汉大学学报(工学版) ,Engineering Journal of Wuhan University ,201302

【分类号】TV143

 

来源:水利水电博士后网    发布日期:2014-5-20