Study of steady and unsteady wet steam condensing flows in a turbine stage
- Author:
Zhihua WU
1
Author Information
1. School of Energy and Power Engineering
- Publication Type:Journal Article
- Keywords:
Condensing flow;
Rotor-stator interactions;
Turbine stage;
Unsteady
- From:Academic Journal of Xi'an Jiaotong University
2007;19(2):154-158
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To develop the numerical method for the steady and unsteady wet steam condensing flow in turbine stage. Methods: An Eulerian/Eulerian numerical model is used to describe the spontaneous condensation flow in the steam turbine. For the steady condensing flow computations, the mixing plane model was used. For the unsteady condensing flow computations, the sliding mesh method was used to simulate the rotor-stator interactions. Results: The numerical results showed the obvious differences between non-condensing and condensing flows. The results also showed the unsteadiness effect due to rotor-stator interactions had a deep influence on the formation and growth process of water droplets. Conclusion: The numerical methods presented in this paper are valid for the condensing flow in the turbine stage.
