Abstract
A cavitation surge oscillation in the range of partial flow rate and low NPSH hinders the wide operation of an inducer for industrial turbo-pumps, though it is very effective to improve the cavitation performance. The harmful oscillation of cavitation surge occurs in the case of inducers with high solidity more than 1.0. This oscillation might be suppressed if a tandem bladed inducer, having a front inducer with low solidity less than 1.0, would be employed. Experiment tests to examine its effect are described in the present paper. Results show that the amplitude of the oscillation takes almost zero when a relative peripheral or axial position between the front and rear blades is properly chosen. The reasons are discussed with measured casing wall pressure distributions and observed cavitation behaviors.
| Original language | English |
|---|---|
| Pages (from-to) | 3005-3010 |
| Number of pages | 6 |
| Journal | Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B |
| Volume | 67 |
| Issue number | 664 |
| DOIs | |
| Publication status | Published - Jan 1 2001 |
| Externally published | Yes |
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All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Mechanical Engineering
Cite this
On suppressing cavitation surge by using tandem bladed helical inducer with low solidity front blades. / Furukawa, Akinori; Ishizaka, Koichi; Watanabe, Satoshi.
In: Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, Vol. 67, No. 664, 01.01.2001, p. 3005-3010.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - On suppressing cavitation surge by using tandem bladed helical inducer with low solidity front blades
AU - Furukawa, Akinori
AU - Ishizaka, Koichi
AU - Watanabe, Satoshi
PY - 2001/1/1
Y1 - 2001/1/1
N2 - A cavitation surge oscillation in the range of partial flow rate and low NPSH hinders the wide operation of an inducer for industrial turbo-pumps, though it is very effective to improve the cavitation performance. The harmful oscillation of cavitation surge occurs in the case of inducers with high solidity more than 1.0. This oscillation might be suppressed if a tandem bladed inducer, having a front inducer with low solidity less than 1.0, would be employed. Experiment tests to examine its effect are described in the present paper. Results show that the amplitude of the oscillation takes almost zero when a relative peripheral or axial position between the front and rear blades is properly chosen. The reasons are discussed with measured casing wall pressure distributions and observed cavitation behaviors.
AB - A cavitation surge oscillation in the range of partial flow rate and low NPSH hinders the wide operation of an inducer for industrial turbo-pumps, though it is very effective to improve the cavitation performance. The harmful oscillation of cavitation surge occurs in the case of inducers with high solidity more than 1.0. This oscillation might be suppressed if a tandem bladed inducer, having a front inducer with low solidity less than 1.0, would be employed. Experiment tests to examine its effect are described in the present paper. Results show that the amplitude of the oscillation takes almost zero when a relative peripheral or axial position between the front and rear blades is properly chosen. The reasons are discussed with measured casing wall pressure distributions and observed cavitation behaviors.
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UR - http://www.scopus.com/inward/citedby.url?scp=71249160419&partnerID=8YFLogxK
U2 - 10.1299/kikaib.67.3005
DO - 10.1299/kikaib.67.3005
M3 - Article
AN - SCOPUS:71249160419
VL - 67
SP - 3005
EP - 3010
JO - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
JF - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
SN - 0387-5016
IS - 664
ER -