Research Article
Numerical Investigation of Pressure Fluctuation Characteristics in a Centrifugal Pump with Variable Axial Clearance
Table 1
Basic parameters of the pump.
| Parameter | Value |
| Impeller inlet diameter | mm | Impeller outlet diameter | mm | Blade number | | Blade inlet angle | ° | Blade outlet angle | ° | Blade outlet width | mm | Back-blade number | | Back-blade width (axial direction) | mm | Back-blade inlet angle | ° | Back-blade outlet angle | ° | Volute casing width at impeller outlet | mm | Blade-tongue gap | | Specific speed | | Design flow rate | m3/s | Design head | m |
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Specific speed is defined as , where n is the rated rotational speed, r/min. The unit of is usually ignored.
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