Numerical simulation of spontaneously condensing flows in a plane turbine cascade

• Autorzy: Li L. , Li G. , Feng Z.
• Konferencja: Seminar/summer school on "CFD for turbomachinery applications" (01-03.09.2001, Gdańsk, Poland)
• Języki publikacji: EN

Abstrakty

EN

The low efficiency of wet steam turbine is mainly attributed to wetness losses. To investigate the mechanisms which give rise to these losses, a fully Eulerian model has been developed for calculation of the wet steam flows with spontaneous condensation. In this model, the liquid phase is described with two conservation equations in Eulerian form and coupled with a solver of gas dynamics equations. With such a model, the existing code for simulation of single-phase flows can easily be changed to include wet steam two-phase flows in wet steam turbines. A numerical simulation of condensing flow in a plane turbine cascade is performed, and the numerical results are presented and compared with the experimental results.

Słowa kluczowe

EN

wet steam; condensing flow; Eulerian/Eulerian model; numerical simulation

• Wydawca: Politechnika Gdańska
• Czasopismo: TASK Quarterly : scientific bulletin of Academic Computer Centre in Gdansk
• Rocznik: 2002
• Tom: Vol. 6, No 1
• Strony: 209--216
• Opis fizyczny: Bibliogr. 8 poz., rys., tab.

Twórcy

autor

Li L.

• Institute of Turbomachinery, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, P. R. China

autor

Li G.

• Institute of Turbomachinery, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, P. R. China

autor

Feng Z.

• Institute of Turbomachinery, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, P. R. China

Bibliografia

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• [2] Bakhtar F and Zidi K 1990 Proc. Instn. Mech. Engrs., Part A, J. Power and Energy 204 223
• [3] Bakhtar F, Webb R A, Shojaee-Fard M H and Siral M A 1993 ASME J. Fluids Engineering 115 128
• [4] Young J B 1982 PCH PhysioChem. Hydrocarbons 3 57
• [5] Skillings S A and Jackson R 1987 Int. J. Heat Fluid Flow 8 139
• [6] Guha A and Young J B 1991 Proc. Conf. Turbomachinery: Latest development in a Changing Scene, London, UK, pp. 167-177
• [7] Harten A 1983 J. Comp. Phys. 49 357
• [8] Bakhtar F, Ebrahimi M and Webb R A 1994 Proc. Instn. Mech. Engrs., Part C, J. Mech. Eng. Science 209 115