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논문 기본 정보

자료유형
학술저널
저자정보
Yohei Tanaka (Kyushu University) Satoshi Watanabe (Kyushu University) Satoru Ohashi (IHI Corporation) Yasushi Matsunaga (IHI Corporation)
저널정보
한국유체기계학회 International Journal of Fluid Machinery and Systems International Journal of Fluid Machinery and Systems Vol.13 No.4
발행연도
2020.12
수록면
750 - 758 (9page)
DOI
10.5293/IJFMS.2020.13.4.750

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초록· 키워드

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For general-use turbopump inducers, high suction performance is required in a wide operating range including the cutoff point. At the low flow rates, low frequency cavitation surge is known to occur with the strong inlet backflow from the inducer. The reduced inlet blade angle would be favoured for the suppression of this inlet backflow, whereas the reduced inlet blade angle causes the deterioration of suction performance through the reduced inlet throat area. In this study, a splitter blade was adopted for the helical inducer to overcome or relieve these two conflicting problems, and the effectiveness was investigated by CFD considering cavitation. First, the favourable length and the circumferential position of short blade were investigated by 2-D cascade model. Then, the obtained suitable cascade design was applied for the 3-D helical inducer. As a result, the inlet backflow was found to be weakened at the low flow rates as expected, while keeping the good suction performance of inducer in the whole flow rate range.

목차

Abstract
1. Introduction
2. 2-D Cascade Model
3. 3-D Helical Inducer
4. Conclusion
References

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