龙抬头泄洪洞反弧段空化空蚀研究进展  

Summary on Cavitation Research of Ogee-section in Spillway Tunnels

作　　者：纪伟[1] 

机构地区：[1]河海大学水利水电工程学院,南京210098

出　　处：《黑龙江水专学报》2006年第1期59-61,共3页Journal of Heilongjiang Hydraulic Engineering College

摘　　要：根据国内外大量的工程实例,在前人研究的基础上,系统总结了龙抬头泄洪洞反弧段空化特性和空蚀成因,同时对反弧段的掺气减蚀和反弧段抗蚀体型的现有成果进行了综述,指出关于体型优化和掺气设施研究,数值实验具有花费少、适应能力强、提供的流场资料详细、便利方案选择等优点。Base on the previous research since 1981, this paper has given a brief introduction and comments on cavitation research of ogee-section in spillway tunnels. Cavitation free configuration of high head flood tunnel, air entrainment and cavitation alleviation are reviewed. The simulation indicates, complicated tunnel flow with aeration facilities can be simulated successfully by the combination of the K-ε double equations turbulent model, VOF method. The simulation supplies a new measure and method for the study on the flood discharge tunnel.

关 键 词：龙抬头泄洪洞 反弧段 空蚀 掺气减蚀 

分 类 号：TV131.32[水利工程—水力学及河流动力学]