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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국유체기계학회 International Journal of Fluid Machinery and Systems International Journal of Fluid Machinery and Systems Vol.10 No.3
- 발행연도
- 2017.9
- 수록면
- 197 - 208 (12page)
- DOI
- 10.5293/IJFMS.2017.10.3.197
이용수
초록· 키워드
오류제보하기
When Francis turbines operate at partial load, residual swirl in the draft tube causes low-frequency pulsation of pressure and power output. Scale effects and system response may bias the prediction of prototype behavior based on laboratory tests, but could be overcome by means of a 1D analytical model. This paper deals with the two most important features of such a model, the compliance and the source of excitation. In a distributed-parameter version, compliance should be represented as an exponential function of local pressure. Lack of similarity due to different Froude number can thus be compensated. The normally unknown gas content in the vortex cavity has significant influence on the pulsation, and should therefore be measured and considered as a test parameter.
목차
Abstract
1. Introduction
2. Model complexity and possibilities of identification
3. Pressure influence on cavity volume and compliance
3. Applications of distributed compliance model
4. Cavity containing non-condensable gas
5. Remark on reference variables
6. Conclusion
References
참고문헌 (21)
참고문헌 신청
[학술대회논문] - Dörfler P K / 2016 / Cavitation Influence in 1D Part-load Vortex Models / IAHR Section Hydraulic Machinery and Systems, 28th Symp
[학술대회논문] - Rheingans W F / 1940 / Power Swings in Hydroelectric Power Plants / Trans. ASME 62 : 171 ~ 177
[학술대회논문] - Moody L F / 1940 / Discussion of [1] / Trans. ASME 62 : 180 ~
[기타자료] - / 1999 / IEC standard 60193, “Hydraulic turbines, storage pumps and pump-turbines – Model acceptance tests, ” Ed. 2.0, 1999-11
[학위논문] - Dörfler P K / 1982 / System oscillations excited by the Francis turbine's part load vortex core: mathematical modeling and experimental verification / PhD
[학술대회논문] - Rheingans W F / 1940 / Power Swings in Hydroelectric Power Plants / Trans. ASME 62 : 171 ~ 177
[학술대회논문] - Moody L F / 1940 / Discussion of [1] / Trans. ASME 62 : 180 ~
[기타자료] - / 1999 / IEC standard 60193, “Hydraulic turbines, storage pumps and pump-turbines – Model acceptance tests, ” Ed. 2.0, 1999-11
[학위논문] - Dörfler P K / 1982 / System oscillations excited by the Francis turbine's part load vortex core: mathematical modeling and experimental verification / PhD
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