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Li Liang
Feng Zhenping
Li Guojun
State Key Laboratory of Multiphase Flow in Power Engineering,
Xi'an Jiaotong University,
Xi'an 710049, China |
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NUMERICAL SIMULATION OF WET
STEAM CONDENSING FLOW WITH
AN EULERIAN/EULERIAN MODEL*
Abstract: Wet steam condensing flow in low-pressure steam turbine leads to efficiency losses and blade erosions. In order to investigate this problem by numerical approach, an Eulerian/Eulerian
model has been developed, in which the wet steam is regarded as
mixture comprising two coupled systems: the vapor phase and the liquid phase. These two systems are both de-scribed by conservation equations. High resolution TVD scheme is employed to capture condensing phenomena in wet steam flow. This model has been validated by numerical simulations of condensing flows in 1D and 2D nozzles. Compared with experimental data, a good agreement is observed. This Eule-rian/Eulerian model can be extended to 3D calculation of condensing flow.
Key words:
Wet steam Condensing flow Numerical simulation Eulerian/Eulerian model |