组合式洞塞消能工的数值计算  

Numerical calculation of combined plug energy dissipator

作　　者：田忠[1] 许唯临[1] 刘善均[1] 王韦[1] 张建民[1] 段辉[2] 

机构地区：[1]四川大学高速水力学国家重点实验室,四川成都610065 [2]中国水利水电第五工程局,四川成都610225

出　　处：《水利水电科技进展》2005年第3期8-10,共3页Advances in Science and Technology of Water Resources

基　　金：国家杰出青年科学基金资助项目(50325928);国家自然科学基金资助项目(50209010)

摘　　要：为了提高洞塞内的最小压强,扩大洞塞式消能工的应用范围,提出了一种新型的内流式消能工———组合式洞塞消能工,并用k ε模型计算了组合式洞塞消能工的水力参数.计算结果表明,与洞塞式消能工相比,组合式洞塞消能工能显著提高洞塞内的最小压强和水流空化数,并且不会明显降低消能率.For improvement of the minimum pressure in plugs and extension of the application range of the plug energy dissipator, a new type of energy dissipator-the combined plug energy dissipator was proposed, and the k-ε model was used for calculation of the hydraulic parameters of the energy dissipator. The calculated result shows that the combined energy dissipator can greatly improve the minimum pressure in plugs and cavitation number of water flow as compared with the single plug dissipator, and the efficiency of energy dissipation does not decrease obviously.

关 键 词：洞塞消能工 洞塞最小压强 空化数 消能率 k-ε模型 

分 类 号：TV135.2[水利工程—水力学及河流动力学]