基于PHOENICS与PIV的幂律流体环空流数值模拟  

Numerical simulation for the power-law in annulus based on PHOENICS and PIV

作　　者：韩洪升[1] 姚洪英[1] 邢均[1] 付金辉[1] 孟玲莉[1] 

机构地区：[1]大庆石油学院提高油气采收率教育部重点实验室,黑龙江大庆163318

出　　处：《大庆石油学院学报》2008年第6期46-49,共4页Journal of Daqing Petroleum Institute

摘　　要：为应用PHOENICS数值模拟环空管道内其它流体情况提供借鉴,利用PHOENICS建立幂律流体环空流动的数值模型,将同心环空幂律流体轴向速度数值模拟结果与二维PIV实验结果对比.模拟结果表明:在同心环空管道中当内管静止时,紊流核心区即轴向速度最大值区域靠近内管壁;当内管旋转时,紊流核心区即轴向速度最大值区域靠近外管壁;靠近内管壁处的切向速度最大,且随着内管转速的增加切向速度增大.验证了应用PHOENICS及PIV技术研究非牛顿流体环空流的可行性,最大相对平均误差为5.925%,数值模拟与实验结果吻合良好.Support has been provided for that annulus fluid instances were numerical simulated with PHOENICS,PHOENICS is used to set up a numerical model of power-law fluid in a concentric annulus flow,by comparing the numerical simulation results for the axis velocity of the power-law fluid in a concentric annulus flow with two dimensional PIV experimental results.It simulation results proves that when the inner pipes in the concentric annulus pipes stand still,the turbulent flow nucleus area approaches inner pipes;and when inner pipes circumvolve,the turbulent flow nucleus area approaches outer pipes.The shearing velocity near the inner pipes is the biggest,and the shearing velocity increases with the velocity of the inner pipes increasing.It validates the feasibility of the application of PHOENICS and PIV in Non-Newtonian fluids in concentric annulus,and the maximum relative average tolerance is 5.925%,besides,the numerical simulation makes well with the experimental data.

关 键 词：PIV技术 PHOENICS 幂律流体 环空流动 速度分布 数值模拟 

分 类 号：TE249[石油与天然气工程—油气井工程]