摘要
该文将气液两相流看成是变密度单流体,以连续方程、雷诺平均方程和k?ε模型为控制方程,采用VOF方法追踪两相流界面,建立了气幕防波堤数值模型。基于Fluent软件平台,通过UDF在连续方程中添加附加质量源项实现了对气幕的数值模拟。数值计算得到的波浪透射系数同试验数据吻合较好。在此基础上讨论了入射波浪的周期和供气量等对气幕防波堤消波性能的影响。
Assuming the two phase fluid of water and air as a variable density fluid, the mathematical model of the air curtain breakwater was developed based on the platform of Fluent software.The continuity equation, the Reynolds average equations and the k-ε model were taken as the governing equations, and the VOF method was used to trace the wave surface.The additional source term to model the air curtain was successfully added to the continuity equation by the Macro of UDF.The transmission coefficients obtained at the different air amounts and the wave periods agree well with the experimental data. The effects of air amounts and the wave periods on the performance of the air curtain breakwater were analyzed in this paper.
出处
《水动力学研究与进展（A辑）》
CSCD
北大核心
2009年第5期543-549,共7页
Chinese Journal of Hydrodynamics
基金
国家自然科学基金资助项目(50809015)
关键词
气幕防波堤
变密度单流体
供气量
透射系数
VOF
air curtain breakwater
variable density fluid
air amount
transmission coefficient
VOF
