A waterpump for a 7L deisel engine application has inspired this study.  The baseline design fits between the gear cover on the front of the engine and the radiator fan, a rather narrow space.

After looking at results for Volute A we decided that it was too large radially. We deleted the part of the volute that was not being used. This created a volute that bounded the strong flow of the Volute A case. We also use the same smooth connection to the outlet duct as in the Volute A case.

The point of this case is to see if flow results from a previous case can be used to find an improved design. This case ahd the further advantage of being compact compared to both Volute A and Volute C. The inlet housing, impeller, and outlet duct portions of this case are identical to the Baseline case.
 

• View the Geometry of the pump.
• View the Mesh of the pump.
• View the Mesh of the Volute and Impeller.
• View the Change in size from the Baseline Pump
• View the Change in size from Volute A

• 75kPa
• 175kPa

• System wide mass flow for this case at 175 kPa is better than all the other volutes studied; 10% greater than the Baseline Case.
• Low pressure in the blade passages near the cut-off for the 75 kPa case is the same as that of the Baseline. The potential for damage due to cavitation is similar to the Baseline Case.
• Utilization of the volute's volume is good compared to Volutes A and C, and similar to the Baseline Case.