Suppression of Cavitation Instabilities in an Inducer by the Circumferential Groove With Swirl Breakers

被引：0

作者：

Horiguchi, Hironori ^{[1
]}

Tsubouchi, Kota ^{[1
]}

Toyoshima, Masakazu ^{[1
]}

Sugiyama, Kazuyasu ^{[1
]}

机构：

[1] Osaka Univ, Grad Sch Engn Sci, Dept Mech Sci & Bioengn, 1-3 Machikaneyama, Toyonaka, Osaka 5608531, Japan

来源：

JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME | 2022年 / 144卷 / 11期

基金：

日本学术振兴会;

关键词：

Cavitation - Computational fluid dynamics - Flow patterns;

D O I：

10.1115/1.4054706

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

A circumferential groove with swirl breakers was designed and its effect on the suppression of cavitation instabilities in an inducer was investigated in experiments. The circumferential groove with the swirl breakers could suppress almost all cavitation instability phenomena effectively and improve suction performance. Observations of flow fields in CFD showed that the swirl breakers reduced the circumferential velocity of the flow near the blade tip at the inlet of the inducer. It was suggested that such a flow pattern succeeded in suppressing cavitation instability phenomena, including pressure fluctuations with high frequencies caused by the interaction of the blades with backflow vortices which were visible as backflow vortex cavities in low suction pressure.

引用

页数：14

共 18 条

[1] Cooper P., 1983, U.S. Patent, Patent No. [US4,375,937, 4375937]
[2] Donghyuk Kang, 2010, International Journal of Fluid Machinery and Systems, V3, P137, DOI 10.5293/IJFMS.2010.3.2.137
[3] Dussord J.L., 1983, U.S. Patent, Patent No. [US4,375,938, 4375938]
[4] Horiguchi H., 2016, PROC JSME FLUIDS ENG, P1
[5] Japikse D., 2004, U.S Patent, Patent No. [US 6,699,008B2, 6699008]
[6] HYDRAULIC AND MECHANICAL PERFORMANCE OF LE-7 LOX PUMP INDUCER
KAMIJO, K
YOSHIDA, M
TSUJIMOTO, Y
[J]. JOURNAL OF PROPULSION AND POWER, 1993, 9 (06) : 819 - 826
[7] Kang D., 2009, INT J FLUID MACH SYS, V2, P206, DOI [10.5293/IJFMS.2009.2.3.206, DOI 10.5293/IJFMS.2009.2.3.206]
[8] Kasztejna P.J., 1985, PROC 2 INT PUMP S CO, P33, DOI [10.21423/R15T2V, DOI 10.21423/R15T2V]
[9] Kato C., 2012, ASME, DOI [10.1115/AJK2011-06084, DOI 10.1115/AJK2011-06084]
[10] INVESTIGATION OF A REATTACHING TURBULENT SHEAR-LAYER - FLOW OVER A BACKWARD-FACING STEP
KIM, J
KLINE, SJ
JOHNSTON, JP
[J]. JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME, 1980, 102 (03): : 302 - 308

← 1 2 →