河工动床模型研究述评  

Review of loose-bed hydraulic models

作　　者：毛野[1] 王勇华 

机构地区：[1]河海大学水利水电工程学院,江苏南京210098 [2]镇江市水利局,江苏镇江212001

出　　处：《河海大学学报（自然科学版）》2003年第2期124-127,共4页Journal of Hohai University(Natural Sciences)

基　　金：国家自然科学基金资助项目(59979005)

摘　　要：以河工动床模型相似准数分析、模拟试验条件和典型情况下关键相似准则的选用为基础,比较河工动床模型校验方法的优缺点,总结了动床模型的研究水平和发展趋势,指出:河工动床模型尚处在主要进行定性相似模拟研究的水平,若理论没有突破而仅靠加大模型尺度则不能明显提高研究成果的可信度,微尺度河工动床模型值得认真关注和积极探索.A summary is made of the level of research on the loosebed hydraulic model and its trend for development based on an analysis of the similar figures of models and the limiting factors for model tests, the determination of key similarity criteria under typical conditions, and comparison of advantages and disadvantages of the methods for model verification. It is indicated that the research on the loosebed hydraulic model is still at the level of qualitative analysis, and that without a breakthrough in basic theories, it is impossible to obviously improve the accuracy and reliability of experimental results only by increase of the scale of model tests. The loosebed hydraulic model is worth more attention and efforts.

关 键 词：河工动床模型 尺度 相似性 量化分析 水流 泥沙 

分 类 号：TV147[水利工程—水力学及河流动力学]