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Effects of volute geometry and impeller orbit on the hydraulic performance of a centrifugal pumpOverall performance data was taken for a Plexiglas water pump with a logarithmic spiral volute and rectangular cross sectioned flow channels. Parametric studies were made in which the center of the impeller was offset from the design center of the volute. The rig was also designed such that the impeller was allowed to synchronously orbit by a fixed amount about any center. The studies indicate that decreasing the tongue clearance decreases the head at low flowrates and increases the head at high flowrates. Also, decreasing the volute area in the first half of the volute and holding the tongue clearance the same, resulted in a decreased head for low flowrates but performance at high flowrates was not affected. Finally, the overall hydraulic performance was not affected by the impeller orbitting about the volute center.
Document ID
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Flack, R. D.
(Virginia, University Charlottesville, VA, United States)
Lanes, R. F.
(General Dynamics Corp. St. Louis, MO, United States)
Date Acquired
August 12, 2013
Publication Date
January 1, 1983
Subject Category
Mechanical Engineering
Accession Number
Funding Number(s)
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