지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국유체기계학회 International Journal of Fluid Machinery and Systems International Journal of Fluid Machinery and Systems Vol.13 No.4
- 발행연도
- 2020.12
- 수록면
- 668 - 676 (9page)
- DOI
- 10.5293/IJFMS.2020.13.4.668
이용수
초록· 키워드
오류제보하기
To improve the cavitation performance of a centrifugal pump, the high-pressure liquid in the front pump cavity is introduced into the cavitation area on the back of the blade by perforated holes at the front cover of the impeller. Based on the RNG k-ε turbulence model and Zwart-Gerber-be1amri cavitation model, the numerical calculation and analysis of the cavitation flow field in the model before and after perforation under different cavitation numbers is carried out by FLUENT. The results show that: The perforation at the front cover plate can effectively improve the pressure value of the cavitation area on the back of the blade. To some extent, the change of pressure gradient restrains the development of cavitation. The perforation at the front cover plate can effectively reduce the integral value of the cavitation bubble in the passage, improve the flow passage conditions in the impeller passage, and reduce the blockage degree of the cavitation to the passage. At the same time, the fluctuation range of the cavitation volume in the impeller is small in a rotation cycle after the perforation. It can be seen that the way of perforation at the front cover plate can effectively improve the cavitation performance of the centrifugal pump.
목차
Abstract
1. Introduction
2. Numerical Method
3. Numerical method verification
4. Algorithm verification
5. Algorithm verification
6. Conclusion
Reference
참고문헌 (27)
참고문헌 신청
Guan X F / 2011 / Modern Pump Theory and Design / China aerospace publishing house
BRENNEN C E / 2013 / Cavitation and bubble dynamics / Cambridge University Press
Y. Ni / 2008 / Detection of cavitation of in centrifugal pump by vibration methods / Chinese Journal of Mechanical Engineering 21(5):46~49
Y. Su / 2010 / Cavitation experimental research on centrifugal pump / Transactions of the Chinese Society for Agricultural Machinery 41(3):77~80
X. Peng / 2016 / Combined experimental observation and numerical simulation of the cloud cavitation with U-type flow structures on hydrofoils / International Journal of Multiphase Flow 79:10~22
BRENNEN C E / 2013 / Cavitation and bubble dynamics / Cambridge University Press
Y. Ni / 2008 / Detection of cavitation of in centrifugal pump by vibration methods / Chinese Journal of Mechanical Engineering 21(5):46~49
Y. Su / 2010 / Cavitation experimental research on centrifugal pump / Transactions of the Chinese Society for Agricultural Machinery 41(3):77~80
X. Peng / 2016 / Combined experimental observation and numerical simulation of the cloud cavitation with U-type flow structures on hydrofoils / International Journal of Multiphase Flow 79:10~22
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