unsteady analyses of a control valve due to fluid-structure coupling

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ID: 233152
2013
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Abstract
Control valves play important roles in the control of the mixed-gas pressure in the combined cycle power plants (CCPP). In order to clarify the influence of coupling between the structure and the fluid system at the control valve, the coupling mechanism was presented, and the numerical investigations were carried out. At the same operating condition in which the pressure oscillation amplitude is greater when considering the coupling, the low-order natural frequencies of the plug assembly of the valve decrease obviously when considering the fluid-structure coupling action. The low-order natural frequencies at 25% valve opening, 50% valve opening, and 75% valve opening are reduced by 11.1%, 7.0%, and 3.8%, respectively. The results help understand the processes that occur in the valve flow path leading to the pressure control instability observed in the control valve in the CCPP.
Reference Key
xie2013mathematicalunsteady Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Yudong Xie;Yong Wang;Yanjun Liu;Fang Cao;Yongcheng Pan
Journal journal of power sources
Year 2013
DOI
10.1155/2013/174731
URL
http://dx.doi.org/10.1155/2013/174731
Keywords
civil engineering (general)mathematics engineering (general)

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