摘要
采用VOF模型对水平管油水两相分层流动进行了数值模拟,分析了两相表观速度以及粘度、密度等物性参数对截面相含率和压降的影响,计算结果表明:截面相含率主要由两相表观速度比决定,受粘度和密度等物性参数的影响较小;而压降受两相表观速度和物性参数的影响都较大。
Stratified oil-water two-phase turbulent flow in a horizontal tube is numerically simulated using Volume of Fluid (VOF) model. RNG κ-εmodel combined with a near-wall low-Re turbulence model is applied to each phase and continuum surface force approximation is adopted for surface tension. Predictions agree well with available data in literature. Results of calculations at various flowrate, viscosity and density show: The hold-up mostly depends on flowrate ratio and little on physical properties of two phases, whereas, the pressure loss strongly depends on both flowrate ratio and physical properties.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2003年第5期810-812,共3页
Journal of Engineering Thermophysics
基金
NSF重大项目资助(No.599995462
No.599995460-2)
国家重点基础发展规划项目资助(No.G1999022308)
关键词
两相分层流
紊流
VOF模型
数值模拟
stratified two-phase flow
turbulence
VOF model
numerical simulation
