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Study on Characteristics of Performance according to Backward and Forward Blades in Centrifugal Blower  

Kim J. W (선문대학교 기계공학부)
Park J. W (선문대학교 대학원 기계공학부)
Publication Information
Journal of computational fluids engineering / v.9, no.1, 2004 , pp. 10-17 More about this Journal
Abstract
Comprehensive investigation according to the two kinds of blades is systematically carried out for a design of the centrifugal blower. The motivation of this work is due to demand of enhanced flow rate with higher inlet pressure, such as air purifiers adopting several filters. It is observed that flow rate of the blower with forward blades is larger than that of the system with backward blades. The reason is due to larger outlet velocity from the rotating forward blades and the tendency is validated by a parallel experiment with a wind tunnel. Numerical analysis for the blower system shows detail information between the blades and inside the casing. A series of figures to show the flow details offers deep understanding of a centrifugal blower with the two different blades.
Keywords
CFD; Centrifugal Blower; Forward Blade; Backward Blade; Unsteady Flow; Implicit Method;
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