To study the operating performance of fans at high altitudes, a pressure-variable ventilation
device able to vary the gas phase environment of fans and pipeline was designed. The fan …

A detailed aeroacoustic analysis of the flow induced by the clearance between the fan tip
and the shroud is performed in a scale-model fan stage of an ultrahigh bypass ratio turbofan …

The effect of a casing fence on the tip-leakage flow of an axial flow fan is investigated using
large eddy simulation. A fence is attached on the shroud near the trailing edge of an axial …

Axial flow fans of outdoor units are equipped with specially shaped winglets and shroud for
reduction of the flow-induced noise. In this study, the unsteady state flow field and the …

The present paper investigates the capabilities of the Lagrangian-Averaged Vorticity
Deviation (LAVD) vortex detection method for turbomachinery applications. The tip leakage …

Studies on the tip leakage vortex (TLV) are extensive, while studies on the secondary tip
leakage vortex (S-TLV) are rare. To advance the understanding of the formation mechanism …

The unsteady flow characteristics of tip leakage flow significantly affect the operation stability
of the turbine blade. However, there is currently a lack of research on the unsteady flow …

This paper investigates the influence of different tip clearances on the transient
characteristics of mixed-flow pump under stall condition. The instantaneous internal flow …

An axial flow fan, which is applied for ventilation in underground spaces such as tunnels,
features a medium–large size, and most of the blades go through the casting process in …

The fan installed in the outdoor unit of air-conditioning (AC) systems is often partially
shrouded to increase the inlet area and allow the installation of a larger upstream heat …