摘要
本文采用 ASM紊流数学模型对水垫塘内高速强紊动水流进行了数值模拟。结合实验资料对底板动水荷载进行了验证 ;同时 ,统计和分析了水垫塘内的单位水体消能率 ,结果表明塘内水体消能大量集中在射流轴线附近 ,反映出水垫塘内真正参与消能的水体只占塘内水体的少部分 ;进一步统计分析了水垫塘的总消能量 ,与常规水力学计算的结果基本吻合 ,这也反映出采用紊流数学模型研究水垫塘内的水流紊动与消能是切实可行的。
WT5”BZ]The paper gives a numerical simulation of the high speed turbulent flow in the plunge pool using ASM turbulent model. Hydrodynamic load on the bottom plate is tested by experimental data. Also the paper makes an analysis of the energy dissipation ratio of unit mass water in the plunge pool. It shows that most of the energy dissipation of water concentrates near the jet axis. This means that the water actually participating in consuming energy occupies a little of the whole water in the plunge pool. The numerical simulation result of the total energy dissipation is according to that of the ordinary hydraulic calculation. This means the method of this paper is practicable in study of the turbulence and energy dissipation of plunge pool. [WT5HZ]
出处
《水动力学研究与进展（A辑）》
CSCD
北大核心
2000年第3期271-275,共5页
Chinese Journal of Hydrodynamics
关键词
水垫塘
消能
紊流
数学模型
泄水
plunge pool
energy dissipation
turbulent flow
mathematical model
