Experimental Investigation of Characteristic Frequency in Unsteady Hydraulic Behaviour of a Large Hydraulic Turbine

Journal of Hydrodynamics

Volumn 21, Issue 1, 2009, Pages 12-19

  WANG, Fu jun ^a   LI, Xiao qin ^a   MA, Jia mei ^a   YANG, Min ^a   ZHU, Yu liang ^b  

^a CHINA AGRICULTURAL UNIVERSITY   (China)

^b Beijing Huake Tongan Monitoring Technology Co Ltd   (China)

Author keywords

characteristic frequency; hydraulic turbine; part load; power load allocation; swirling flow; unsteady behaviour

Indexed keywords

ELECTRIC LOAD FORECASTING; ENGINES; FLUID DYNAMICS; FREQUENCY ALLOCATION; HYDRAULIC MACHINERY; HYDRAULIC STRUCTURES; HYDRAULIC TURBINES; HYDRAULICS; STRUCTURAL DYNAMICS; SWIRLING FLOW; WATER ANALYSIS;

CHARACTERISTIC FREQUENCY; DRAFT TUBES; EXPERIMENTAL INVESTIGATIONS; FREQUENCY DATUM; HYDRAULIC BEHAVIOURS; LOAD RANGES; LOW FREQUENCIES; PART LOAD; POWER LOAD ALLOCATION; PRESSURE FLUCTUATIONS; PRESSURE VARIATIONS; ROTATION FREQUENCIES; RUNNING CONDITIONS; SHAFT-TORSIONAL OSCILLATIONS; SITE INVESTIGATIONS; STRUCTURAL VIBRATIONS; TORSIONAL OSCILLATIONS; UNSTEADY BEHAVIOUR; UPSTREAM FLOWS; VORTEX ROPES; WATER HEADS;

HYDRAULIC MOTORS;

EID: 61549143723     PISSN: 10016058     EISSN: None     Source Type: Journal    
DOI: 10.1016/S1001-6058(08)60113-4     Document Type: Article

References (16)

1. SUSAN-RESIGA R., CIOCAN G.D., ANTON I., et al. Analysis of the swirling flow downstream a Francis turbine runner[J]. Journal of Fluids Engineering, Transactions of ASME 128 1 (2006) 177-189
2. ARZOLA F., AZUAJE C. and ZAMBRANO P. et al. Undesired power oscillations at high load in large Francis turbines: Experimental study and solution[C]. Proceedings of the 23rd IAHR Symposium on Hydraulic Machinery and Systems. Yokohama, Japan, 2006, 1-9.
3. ILIESCU M.S., and CIOCAN G.D.A. Analysis of the cavitating draft tube vortex in a Francis turbine using particle image velocimetry measurements in two-phase flow[J]. Journal of Fluids Engineering, Transactions of ASME 130 2 (2008) 0211051-02110510
4. LACEY R.M., and GRIFFIN F.M. Resolving vibration problems on a 25 MW Kaplan unit[J]. International Journal on Hydropower and Dams 10 3 (2003) 84-88
5. CHEN G.Q. Operation analysis and stabilization measures for the 700MW TGHP LB units[C]. Proceedings of the 1st International Conference on Hydropower Technology and Key Equipment. Beijing, China, 2006, 174-179.
6. SHIRAZI F.A., MAHJOOB M. J. Draft tube surge detection in Francis hydroturbines using bispectrum analysis[C]. Proceedings of the 2007 IEEE International Conference on Mechatronics and Automation. Haerbin, China, 2007, 2077-2081.
7. SIROK B., BLAGOJEVIC B., BAJCAR T., et al. Simultaneous study of pressure pulsation and structural fluctuations of a cavitated vortex core in draft tube of a Francis turbine[J]. Journal of Hydraulic Research 41 5 (2003) 541-548
8. WU Y.-l., WU X.-j., and LIU S.-h. Correlation analysis of the internal vortex flow of hydro turbine with the pressure fluctuation inside draft tube[J]. Journal of Hydroelectric Engineering 26 5 (2007) 122-127 (in Chinese).
9. QIAN Z.-d., YANG J.-d., and HUAI W.-x. Numerical simulation and analysis of pressure pulsation in Francis hydraulic turbine with air admission[J]. Journal of Hydrodynamics, Ser. B 19 4 (2007) 467-472
10. LAI X.-d. Analysis and estimation of hydraulic stability of Francis hydro turbine[J]. Journal of Hydrodynamics, Ser. B 16 2 (2004) 194-200
11. ZHU Yu-liang, XIONG Hao and XU Dong-hai. Stability analysis on ALSTOM units installed in Three Gorges Left Bank Hydropower Plant[C]. Proceedings of the 1st International Conference on Hydropower Technology and Key Equipment. Beijing, China, 2006, 1281-1289.
12. LIAO Cui-lin. Study on hydraulic stability of large Francis turbine[D]. Ph. D. Thesis, Beijing: China Agricultural University, 2008, 61-75(in Chinese).
13. WANG F.-j. Computational fluid dynamics analysis -CFD principles and application[M] (2004), Tsinghua University Press, Beijing 114-126 (in Chinese).
14. LIU X.-B., ZENG Y.-Z., and CAO S.-Y. Numerical prediction of vortex flow in hydraulic turbine draft tube for LES[J]. Journal of Hydrodynamics, Ser. B 17 4 (2005) 448-454
15. WANG W.-q., ZHANG L.-x., YAN Y., et al. Large-eddy simulation of turbulent flow considering inflow wakes in a Francis turbine blade passage[J]. Journal of Hydrodynamics, Ser. B 19 2 (2007) 201-209
16. WANG Z.-w., and ZHOU L.-j. Simulations and measurements of pressure oscillations caused by vortex ropes [J]. Journal of Fluids Engineering, Transactions of the ASME 128 4 (2006) 649-655