The Numerical Analysis On Internal Flow Field Of A Centrifugal Fan Under Different Operating Conditions

Turbomachinery of all kinds play an important role in national economy . As a kind of turbomachinery, centrifugal fan is very used in many fields.The channels of centrifugal fan is very complex . And the flow of fluid in it is very difficult to study .With the developing of computer and the numerical technology these years , the numerical technology is used in turbomachinery to analysis the internal flow.In my study ,I calculated the internal flow fluid of a centrifugal fan under different operating conditions . On the base of the important phenomena of the flow in the centrifugal fan , the conclusion provides important theoretical basis for analysising the factors which affect the efficiency of a centrifugal fan, and for instructing the design.