What's inside?
The previous paper describes the design of the blade geometry of a medium specific speed mixed flow pump impeller by using a three-dimensional inverse design method in which the blade circulation is specified. This paper discusses how using flow visualization and phase-locked measurements of the impeller exit flow, in order to validate the effects of secondary flow suppressions.
The paper describes in detail the effects of tip clearance and the number of blades for inverse designed impeller are also investigated experimentally and numerically.
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In this part, the internal flow fields of the inverse designed impeller were investigated experimentally to confirm the capability of the present three dimensional inverse design method, especially in terms of suppression of secondary flows on the blade suction surface.
In this publication, you will:
- Discover the experimental comparisons of the flow fields inside and exit flows.
- Understand how to minimize the loss generation in impellers.
- See how secondary flows play a important role to produce the exit flow nonuniformity such as jet-wake flow pattern.
