摘要
从相似理论原理出发,扼要阐述了离心风机的相似条件和相似风机的无因次性能参数及其曲线,并由此推出了风机相似定律算式和比例定律算式。文中通过2例说明在相似风机中无因次性能参数与性能参数之间的换算;另举2例说明无因次性能参数在风机选型中的应用。
Based on the similitude theory principle, this article stated concisely the similitude conditions of cen- trifugal fan and dimensionless performance parameters as well as its curves, and deduced the calculation formulas of similitude law and calculation formulas of ratio law for centrifugal fan from these. Two examples were given to illus- trate the conversion between dimensionless performance parameters and performance parameters. Also, another two examples were given to show the usage of dimensionless performance parameters in determining the selection of cen- trifugal fan.
出处
《南昌大学学报（工科版）》
CAS
2013年第3期241-246,共6页
Journal of Nanchang University(Engineering & Technology)
关键词
离心风机
性能参数
无因次性能参数
相似定律和比例定律算式
离心风机选型
centrifugal fan
performance parameters
dimensionless performance parameters
calculation formu-las of similitude law and of ratio law
selection centrifugal fan
