低比转速离心泵复合叶轮内部流动的数值计算  

Numerical computation of inner flow passing through low specific speed compound impeller of centrifugal

作　　者：齐学义[1] 张东 刘在伦[1] 姬孝斌[1] 徐洁[1] 凤尔桐[1] 

机构地区：[1]兰州理工大学流体动力与控制学院,甘肃兰州730050 [2]兰州电机有限责任公司,甘肃兰州730050

出　　处：《兰州理工大学学报》2007年第4期47-50,共4页Journal of Lanzhou University of Technology

摘　　要：采用奇点分布法对普通结构型式的低比转速离心泵叶轮内部流动进行数值计算,通过对由长、短叶片构成的复合叶轮内部流场的实例计算,验证奇点分布法的可行性与适用性.实例计算结果表明:该方法不仅可行、适用,而且显示出一些突出的优越性.指出该方法在计算过程中相关参数的选取对计算结果的影响,并提出这些参数取值范围的建议.Numerical evaluation of inner flow within low specific speed impeller of common centrifugal pump was evaluated numerically by using singularity distribution method. The inner flow-field of compound impeller composed of both the long and short vanes was also calculated as an illustration to verify the feasibility and applicability of singularity distribution method. The evaluation result showed that the method not only was feasible and applicable but also exhibited extraordinary superiority. It was pointed out that there was influence of the selection of related parameters on the evaluation result, so that an assigned range of these parameters was proposed, also.

关 键 词：复合叶轮 低比转速 奇点分布法 内部流动 数值计算 

分 类 号：TK730.2[交通运输工程—轮机工程]