|
合成橡胶工业 |
 |
|
合成橡胶工业 |
|
搅拌槽内桨叶高度对流场结构和功率消耗影响的数值模拟 洪厚胜 陶慧 张庆文 摘 要：运用多重参考系法和滑移网格法处理搅拌桨与挡板之间的相对运动,结合剪切应力输运模型建立了描述流体运动的控制方程组,考察了搅拌槽内桨叶高度对流场结构和功率消耗的影响,并将模拟结果与文献报道结果进行了比较.结果表明,当桨叶高度逐渐降低时,槽内流型由"双环流"结构转变为"单环流"结构,功率准数也随之急剧下降,计算流体力学模拟结果与文献报道结果有较好的一致性. Numerical simulation of influence of impeller clearance in agitated vessels on flow field structure and power consumption Hong Housheng Tao Hui Zhang Qingwen |
参考文献：
[1]侯拴弟,钟孝湘,王英琛,等.斜叶涡轮搅拌槽流动场数值研究[J].北京化工大学学报,1999,26(4):1-4.
[2]Nienow A W.Suspension of solid particles in turbine agitated ba-ffled vessels[J].Chemical Engineering Science,1968,23(10):1453-1459.
[3]Ibrahim S,Nienow A W.Power curves and flow patterns for a range of impellers in Newtonian fluids:40《Re《5×105[J].Transactions of the Institution of Chemical Engineers(Part A):Chemical Engineering Research and Design,1995,73(5):485-491.
[4]Armenante P M,Nagamine E U,Susanto J.Determination of correlations to predict the minimum agitation speed of complete solids suspension in agitated vessels[J].Canadian Journal of Chemical Engineering,1998,76(3):413-419.
[5]Montante G,Lee K C,Brucato A,et al.Double-to single-loop flow pattern transition in stirred vessels[J].Canadian Journal of Chemical Engineering,1999,77(5):649-659.
[6]Montante G,Lee K C,Brucato A,et al.Numerical simulations of the dependency of flow pattern on impeller clearance in stirred vessels[J].Chemical Engineering Science,2001,56(12):3751-3770.
[7]王福军.计算流体动力学分析-CFD软件原理与应用[M].北京:清华大学出版社,2004:11-13.
[8]Menter F R,Kuntz M,Langtry R.Ten years of industrial experience with the SST turbulence model[C]//Proc of the 4th International Symposium on Turbulence,Heat and Mass Transfer.Antalya,2003:625-632.
[9]Menter F R.Two-equation eddy-viscosity turbulence models for engineering applications[J].AIAA-Journal,1994,32(8):269-289.
[10]Montante G,Brucato A,Lee K C,et al.Experiments and predictions of the transition of the flow pattern with impeller clearance in stirred tanks[J].Computers and Chemical Engineering,2001,25(4/6):729-735.
[11]Grisafi F,Brucato A,Rizzuti L.Solid-liquid mass transfer coefficients in gas-solid-liquid agitated vessels[J].Canadian Journal of Chemical Engineering,1998,76(3):446-455.
|
收稿日期：2006年12月31日 修稿日期：2007年11月30日 出版日期：2008年1月15日 |
