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http://dx.doi.org/10.5293/KFMA.2006.9.1.019

Effect of Tip Clearance on the Performance of a Turbopump Inducer  

Hong, Soon-Sam (한국항공우주연구원 터보펌프그룹)
Kim, Jin-Sun (한국항공우주연구원 터보펌프그룹)
Choi, Chang-Ho (한국항공우주연구원 터보펌프그룹)
Kim, Jin-Han (한국항공우주연구원 터보펌프그룹)
Publication Information
Abstract
Experiments are carried out to investigate the effect of radial tip clearance on a turbopump inducer, which has two blades with inlet tip blade angle of 7.8 degree and tip solidity of 2.7. Hydraulic and cavitation tests are performed for three cases of tip clearance ratio, that is, 0.026, 0.053, and 0.079. With increase in the tip clearance, inducer head and pressure on the inducer tip decrease. Attached cavitation and cavitation surge are observed in the cavitation tests. In the attached cavitation one cell rotates at the same rotational speed as that of the inducer. Cavitation performance deteriorates with increase in the tip clearance. The level of casing vibration increases in the cavitation condition and the level is very high when the attached cavitation appears.
Keywords
Tip clearance; Turbopump; Inducer; Cavitation;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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