人民长江2017，Vol.48Issue(8)：79-83,5.DOI:10.16232/j.cnki.1001-4179.2017.08.017
离心叶轮的叶片数效应研究
Study on effectiveness of blade number of centrifugal pump impeller
摘要
Abstract
Blade number, as an important structural parameter for centrifugal pump impeller, directly affects both external performance of the impeller and internal flow field.We create two impellers with 5 and 6 blades respectively using CFD software , and analyze the internal and external mechanical property of the impellers under the same operating condition.Through the comparison of H~Q, η~Q characteristic curves, the internal pressure and relative velocity of the two impellers, the influence of different blade number on impeller performance and the causes are analyzed.The comparative and analytic results can help design professionals to deeply understand the flow mechanism of impellers with different blade number and correctly select the blade number in design.关键词
离心叶轮/叶片数/泵的外特性/内流场/数值模拟Key words
centrifugal pump impeller/blade number/pump external performance/internal flow field/numerical simulation引用本文复制引用
彭坜,刘小兵,严敬,罗丽..离心叶轮的叶片数效应研究[J].人民长江,2017,48(8):79-83,5.基金项目
国家自然科学基金资助项目(51279172) （51279172）
