摘要
对近几年逐步发展起来的离心泵的性能预测方法进行了评述,并对各种预测方法的优缺点进行了比较并讨论了其间的相互关系,利用CFD软件Fluent对MD40-6.3多级泵一级的叶轮与导叶内部流场进行了数值计算,根据计算的数据结合J.kourokawa提出的模型计算叶轮内的损失,预测了该多级清水离心泵一级的能量特性曲线,并与实验数据进行了比较。结果表明:在设计工况附近,预测值与实验值吻合较好,在其他工况点,特别是小流量工况点,误差也较小。
In this paper,different kinds of performance prediction methods are introduced and analyzed in detail.The merits and deficiencies of these methods are pointed out.Three-dimensional modeling and calculating of the impeller and vane flow through one stage of the centrifugal pump have been performed by using CFD.The performance curve of one stage of the centrifugal pump is got by collecting the data of the calculating and using the regress model proposed by J.kourokawa.The comparison of the prediction data with the experiment data shows that the errors are low at design condition and other working conditions.
出处
《节水灌溉》
北大核心
2010年第9期54-56,共3页
Water Saving Irrigation
关键词
数值计算
模型分析法
离心泵
性能预测
numerical calculation
model analysis
centrifugal pump
performance prediction
