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Issue:
Research of Molded Line for Cylindrical Blade of Low Speed centrifugal pump
Pages:
85
-
87
Year:
2009
Issue:
3
Journal:
Journal of Yangtze University(Natural Science Edition)
Keyword:
离心泵
;
叶轮
;
圆柱形叶片
;
叶片型线
;
Abstract:
根据叶片进出口边界条件,提出用三次多项式构造叶片型线的极坐标表达式,并导出了保证叶片安放角单调变化的叶片包角取值范围.该叶片型线的主要特点是其包角可作为设计常量由设计人员根据需要事先在一定范围内给定,并且随着叶片半径的增大,叶片曲率半径单调增长,叶片安放角单调均匀变化,从而减少了叶片表面的脱流损失,提高了离心泵的水力效率.
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