Best Practice Advice AC6-15

From KBwiki
Jump to navigation Jump to search

Front Page

Description

Test Data

CFD Simulations

Evaluation

Best Practice Advice

Vortex ropes in draft tube of a laboratory Kaplan hydro turbine at low load

Application Area 6: Turbomachinery Internal Flow

Application Challenge AC6-15

Best Practice Advice

REFERENCES

  • Aakti, B., Amstutz, O., Casartelli, E., Romanelli, G., & Mangani, L. (2015). On the performance of a high head Francis turbine at design and off-design conditions. Francis-99 Workshop 1: steady operation of Francis turbines. Journal of Physics: Conference Series, 579(1), 1-12. doi:10.1088/1742-6596/579/1/012010
  • Bosioc, A., Tanasa, C., Muntean, S., & Susan-Resiga, R. (2009). 2D LDV measurements of swirling flow in a simplified draft tube. Conference on Modelling Fluid Flow (CMFF'09), the 14th International Conference on Fluid Flow Technologies.
  • Chen, C., Nicolet, C., Yonezawa, K., Farhat, M., Avellan, F., Miyagawa, K., & Tsujimoto, Y. (2010). Experimental study and numerical simulation of cavity oscillation in a diffuser with swirling flow. International Journal of Fluid Machinery and Systems, 3(1), 80-90.
  • Kuibin P. A., Litvinov I. V., Sonin V. I., Ustimenko A. S., & Shtork S. I. (2016). Modelling inlet flow in draft tube for different regimes of hydro turbine operation. Vestnik Novosibirsk State University. Series: Physics. 11(1), 56-65.
  • Launder, B. E., Reece, G. J., & Rodi, W. (1975). Progress in the development of a Reynolds-stress turbulence closure. Journal of Fluid Mechanics, 68(3), 537-566. DOI: https://doi.org/10.1017/S0022112075001814
  • Litvinov, I. V., Shtork, S. I., Kuibin, P. A., Alekseenko, S. V., & Hanjalić, K. (2013). Experimental study and analytical reconstruction of precessing vortex in a tangential swirler. International Journal Heat and Fluid Flow, 42, 251-264.
  • Minakov, A. V., Platonov, D. V., Dekterev, A. A., Sentyabov, A. V., & Zakharov, A. V. (2015a). The numerical simulation of low frequency pressure pulsations in the high-head Francis turbine. Computers & Fluids, 111, 97-205.
  • Minakov, A. V., Platonov, D. V., Dekterev, A. A., Sentyabov, A. V., & Zakharov, A. V. (2015b). The analysis of unsteady flow structure and low frequency pressure pulsations in the high-head Francis turbines. Int. J. of Heat and Fluid Flow, 53, 183-194.
  • Minakov, A. V., Sentyabov, A. V., Platonov, D. V., Dekterev, A. A., & Gavrilov, A. A. (2015c). Numerical modeling of flow in the Francis-99 turbine with Reynolds stress model and detached eddy simulation method. Journal of Physics: Conference Series 579(1), doi:10.1088/1742-6596/579/1/012004.
  • Minakov A., Platonov D., Litvinov I., Shtork S., Hanjalić K. (2017) Vortex ropes in draft tube of a laboratory Kaplan hydroturbine at low load: An experimental and LES scrutiny of RANS and DES computational models. Journal of Hydraulic Research 55(3), 668-685
  • Nicoud, F., & Ducros, F. (1999). Subgrid-scale stress modelling based on the square of the velocity gradient tensor. Flow, Turbulence and Combustion, 62(3), 183-200.
  • Picano, S., & Hanjalić, K., (2012). Leray-α regularization of the Smagorinsky-closed filtered equations for turbulent jets at high Reynolds numbers. Flow, Turbulence and Combustion, 89(4), 627-650.
  • Smirnov, A., Shi, S., & Celik, I. (2001). Random flow generation technique for large eddy simulations and particle-dynamics modeling. Journal of Fluids Engineering, 123(2), 359-371.
  • Susan-Resiga, R. (2008, June). Hydrodynamic design and analysis of a swirling flow generator. Proceedings of the 4th German – Romanian Workshop on Turbomachinery Hydrodynamics (GRoWTH), Stuttgart, Germany.
  • Slotnick, J., Khodadoust, A., Alonso, J., Darmofal, D., Gropp, W., Lurie, E., & Mavriplis, D. (2014) CFD Vision 2030 Study: A Path to Revolutionary Computational Aerosciences. NASA/CR–2014-218178.
  • Skripkin, S., Tsoy, M., Shtork, S., & Hanjalić, K. (2016). Comparative analysis of twin vortex ropes in laboratory models of two hydro-turbine draft-tubes. Journal of Hydraulic Research, 54(4), 1-11. http://dx.doi.org/10.1080/00221686.2016.1168325.
  • Zadravec, M., Basic, S., & Hribersek. (2007). The influence of rotating domain size in a rotating frame of reference approach for simulation of rotating impeller in a mixing vessel. J. of Engin. Science and Technology, 2(2), 126 – 138




Contributed by: A. Minakov [1,2], D. Platonov [1,2], I. Litvinov [2], S. Shtork [2], K. Hanjalić [3] — 

[1] Institute of Thermophysics SB RAS, Novosibirsk, Russia,

[2] Siberian Federal University, Krasnoyarsk, Russia,

[3] Delft University of Technology, Chem. Eng. Dept., Holland.

Front Page

Description

Test Data

CFD Simulations

Evaluation

Best Practice Advice