Volume 21 Issue 1
Feb.  2006
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Article Navigation >  Journal of Aerospace Power  > 2006  >  21(1): 144-149
QI Lei, ZOU Zheng-ping, LU Hong-zhi, YU Er-liang, Tian Dong-qiang, Shi Li-ming. Numerical Simulation of the 3-D Unsteady Flow in the Steam Turbine Last Stage[J]. Journal of Aerospace Power, 2006, 21(1): 144-149.
Citation: QI Lei, ZOU Zheng-ping, LU Hong-zhi, YU Er-liang, Tian Dong-qiang, Shi Li-ming. Numerical Simulation of the 3-D Unsteady Flow in the Steam Turbine Last Stage[J]. Journal of Aerospace Power, 2006, 21(1): 144-149.
shu

Numerical Simulation of the 3-D Unsteady Flow in the Steam Turbine Last Stage

  • 1.

    National Key Laboratory on Aero-Engines, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

  • 2.

    Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hongkong, China

  • 3.

    Beijing Beizhong Steam Turbine Generator CO.LTD, Beijing 100040, China

  • Received Date: 2004-12-27
  • Rev Recd Date: 2005-03-28
  • Publish Date: 2006-02-28
    Abstract
  • The unsteady flow of the steam turbine at design state was studied by the method of numerical simulation of 3-D viscous flow,and the analyses of unsteady force on the blade surface and the mechanism of action were carried out.The result indicates that at typical design operating conditions in the last stage of the steam turbine investigated here,shock and potential field interaction from upstream blade row is an order of magnitude greater than wake interaction.The shock and potential field interaction effects cause a periodic increase in the strength of the unsteady force acting on the downstream rotor blade surface.In addition,the wake interaction of upstream blade row and the expansion wave at rotor exit also cause an unsteady force acting on the downstream rotor blade surface.

     

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    • References(5)
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