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当前位置: 首页 > 文章 > 软摘锭采棉机采摘头三维流场的数值模拟及试验研究 石河子大学学报(自然科学版) 2011,29 (6) 108-112
Position: Home > Articles > Experiment and Numerical Simulation on Three-dimensional Turbulence Air flow of the Brush-roll Stripper Journal of Shihezi University(Natural Science) 2011,29 (6) 108-112

软摘锭采棉机采摘头三维流场的数值模拟及试验研究

作  者：
马清亮;王维新;刘克毅;叶伟;瞿端阳
单  位：
石河子大学机械电气工程学院
关键词：
采棉机;采摘头;三维流场;数值模拟
摘  要：
针对统收式采棉机采摘头内物料在气力输送过程中造成的堵塞问题,需研究物料在分离过程中受到流体在不同风速、滚筒转速等影响因素下的运动规律。本文利用流体力学软件Fluent对4MBR-2型统收式软摘锭采棉机采摘头的内部流场进行三维模拟,分析了采摘头内部在不同风速及滚筒转速下的流场特性,并对计算得出的风速与试验测得的数值进行对比,结果表明二者的最大相对误差小于7%,同时得出了风速在20m/s和25m/s时采摘头内流场的速度分布和压力分布。模拟分析表明,入口风速在20m/s时,在出料口附近有明显的湍流成型,是造成物料堵塞的主要原因。
译  名：
Experiment and Numerical Simulation on Three-dimensional Turbulence Air flow of the Brush-roll Stripper
作  者：
MA Qingliang,WANG Weixin,LIU Keyi,YE Wei,QU Duanyang(College of Machinery and Electricity Engineering,Shihezi University,Shihezi 832003,China)
关键词：
brush-roll Stripper;flow fields;computer simulation
摘  要：
According to the congestion problem of the materials in the transportation process caused by fluid in the Brush-roll Stripper,it is essential to study the movement law of fluid under different wind speed and roller rotary speed,which are the main influencing factors.In this essay,the three dimensional inner flow fields of 4MBR-2 brush-roll stripper will be simulated with Fluent software.The simulated results show its properties under different wind speed and roller rotary speed of the flow fields.By comparing numerical simulation curves with experiment data,the outcome shows that the relative error of two sets of data is less than 7%,and the distributions of pressure and velocity of flow fields were obtained from the simulated results under the wind speed of 20 m/s and 25 m/s.By analyzing the simulated results of flow field,when the wind speed reach the 20 m/s,a reversed flow is formed in the outlet,which could cause a block.Therefore,it is found more superior conveying wind speed range could save more time and labor costs.

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