Journal
TRANSACTIONS OF THE KOREAN SOCIETY OF MECHANICAL ENGINEERS B
Volume 35, Issue 9, Pages 883-890Publisher
KOREAN SOC MECHANICAL ENGINEERS
DOI: 10.3795/KSME-B.2011.35.9.883
Keywords
Numerical Analysis; Vacuum Pump; Commercial CFD Code(CFD); Design Factor; Degree of Vacuum
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A numerical study was conducted to determine the optimal design for a vehicle vacuum pump. The degree of vacuum was examined for different design factors such as the angle of vanes, number of vanes, angle and position of the pump inlet-outlet pipe, and angular rotational speed of vanes. The results show that there is a little difference in the degree of vacuum when the angle of vanes are changed, but an angular change in the outlet pipe reduces the pump loss. As the rotational speed is increased, the mass flow rate increases, but a high rotational speed does not result in the maximum degree of vacuum. In addition, when the number of vanes is increased, the scattering range of mass flow rate decreases and pressure drop is abated.
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