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Analysis of the Water Hammer Effect and Structural Response Characteristics in the Fire-Resistant Oil System of Gas Turbine Units.

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Title: Analysis of the Water Hammer Effect and Structural Response Characteristics in the Fire-Resistant Oil System of Gas Turbine Units.
Authors: Zhou, Guangjie1 (AUTHOR), Ma, Qiang1,2 (AUTHOR), Xue, Sufeng2,3 (AUTHOR), Wang, Gang1 (AUTHOR), Jia, Lijun1,2 (AUTHOR), Yang, Kaimin3 (AUTHOR) yangkaimin@sdjzu.edu.cn
Source: Energies (19961073). Jan2026, Vol. 19 Issue 1, p147. 17p.
Subjects: Water hammer, Gas turbines, Computational fluid dynamics, Pressure regulators, Mechanics (Physics), Dynamic pressure, Acoustic wave propagation
Abstract: In gas turbine fire-resistant oil systems, valve actuations induce transient pressure fluctuations and the water hammer effect, causing pressure oscillations and structural vibrations. This study uses a coupled CFD and transient structural simulation to analyze the effects of different valve strategies on pressure wave propagation and structural response. Results show that a higher valve opening rate leads to a more significant water hammer effect, increasing structural deformation and stress. The maximum equivalent stress was verified at 201.9 MPa, maintaining a 30% safety margin and meeting American Society of Mechanical Engineers (ASME) B31.3 requirements. Finally, a "slow-fast-slow" (S-shaped) valve strategy is proposed to significantly improve the system's pressure response characteristics, providing theoretical and engineering guidance for safe operation. [ABSTRACT FROM AUTHOR]
Copyright of Energies (19961073) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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Header DbId: egs
DbLabel: Engineering Source
An: 190785293
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Label: Title
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  Data: Analysis of the Water Hammer Effect and Structural Response Characteristics in the Fire-Resistant Oil System of Gas Turbine Units.
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  Data: <searchLink fieldCode="AR" term="%22Zhou%2C+Guangjie%22">Zhou, Guangjie</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ma%2C+Qiang%22">Ma, Qiang</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Xue%2C+Sufeng%22">Xue, Sufeng</searchLink><relatesTo>2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Gang%22">Wang, Gang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Jia%2C+Lijun%22">Jia, Lijun</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yang%2C+Kaimin%22">Yang, Kaimin</searchLink><relatesTo>3</relatesTo> (AUTHOR)<i> yangkaimin@sdjzu.edu.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Energies+%2819961073%29%22">Energies (19961073)</searchLink>. Jan2026, Vol. 19 Issue 1, p147. 17p.
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  Data: <searchLink fieldCode="DE" term="%22Water+hammer%22">Water hammer</searchLink><br /><searchLink fieldCode="DE" term="%22Gas+turbines%22">Gas turbines</searchLink><br /><searchLink fieldCode="DE" term="%22Computational+fluid+dynamics%22">Computational fluid dynamics</searchLink><br /><searchLink fieldCode="DE" term="%22Pressure+regulators%22">Pressure regulators</searchLink><br /><searchLink fieldCode="DE" term="%22Mechanics+%28Physics%29%22">Mechanics (Physics)</searchLink><br /><searchLink fieldCode="DE" term="%22Dynamic+pressure%22">Dynamic pressure</searchLink><br /><searchLink fieldCode="DE" term="%22Acoustic+wave+propagation%22">Acoustic wave propagation</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: In gas turbine fire-resistant oil systems, valve actuations induce transient pressure fluctuations and the water hammer effect, causing pressure oscillations and structural vibrations. This study uses a coupled CFD and transient structural simulation to analyze the effects of different valve strategies on pressure wave propagation and structural response. Results show that a higher valve opening rate leads to a more significant water hammer effect, increasing structural deformation and stress. The maximum equivalent stress was verified at 201.9 MPa, maintaining a 30% safety margin and meeting American Society of Mechanical Engineers (ASME) B31.3 requirements. Finally, a "slow-fast-slow" (S-shaped) valve strategy is proposed to significantly improve the system's pressure response characteristics, providing theoretical and engineering guidance for safe operation. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Energies (19961073) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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        Value: 10.3390/en19010147
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      – Code: eng
        Text: English
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        PageCount: 17
        StartPage: 147
    Subjects:
      – SubjectFull: Water hammer
        Type: general
      – SubjectFull: Gas turbines
        Type: general
      – SubjectFull: Computational fluid dynamics
        Type: general
      – SubjectFull: Pressure regulators
        Type: general
      – SubjectFull: Mechanics (Physics)
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      – SubjectFull: Dynamic pressure
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      – SubjectFull: Acoustic wave propagation
        Type: general
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      – TitleFull: Analysis of the Water Hammer Effect and Structural Response Characteristics in the Fire-Resistant Oil System of Gas Turbine Units.
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            NameFull: Zhou, Guangjie
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            NameFull: Ma, Qiang
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            NameFull: Xue, Sufeng
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            NameFull: Wang, Gang
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            – D: 01
              M: 01
              Text: Jan2026
              Type: published
              Y: 2026
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