Improvement of aerodynamic performance of a volute-free centrifugal fan at a large flow rate using a wavy shroud
Hengjun Qin,
Haijiang He,
Ping Luo
et al.
Abstract:The volute-free centrifugal fans in ventilation applications are used to exhaust a large amount of air under the effect of the head loss in the ventilation pipeline system, thus, a high static pressure rise at a large flow rate of the fans is anticipated. The shroud of the conventional volute-free centrifugal fans has an axisymmetric geometry, that is, the height of the fan outlet is constant over the whole circumference. Considering the non-uniform flow in the blade passages, the shroud of a wavy geometry mig… Show more
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