Numerical Study on Acoustic Resonance Excitation in Closed Side Branch Pipeline Conveying Natural Gas
Flow-induced acoustic resonance in the closed side branch of a natural gas pipeline can cause intensive vibration which threatens the safe operation of the pipeline. Accurately modeling this excitation process is necessary for a workable understanding of the genetic mechanism to resolve this problem...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2020-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2020/8857838 |
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| _version_ | 1849402901558984704 |
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| author | Liuyi Jiang Hong Zhang Qingquan Duan Yulong Zhang |
| author_facet | Liuyi Jiang Hong Zhang Qingquan Duan Yulong Zhang |
| author_sort | Liuyi Jiang |
| collection | DOAJ |
| description | Flow-induced acoustic resonance in the closed side branch of a natural gas pipeline can cause intensive vibration which threatens the safe operation of the pipeline. Accurately modeling this excitation process is necessary for a workable understanding of the genetic mechanism to resolve this problem. A realizable k-ε Delayed Detached Eddy Simulation (DDES) model was conducted in this study to numerically simulate the acoustic resonance problem. The model is shown to accurately capture the acoustic resonance phenomenon and self-excited vibration characteristics with low calculation cost. The pressure pulsation component of the acoustic resonance frequency is gradually amplified and transformed into a narrowband dominant frequency in the process of acoustic resonance excitation, forming a so-called “frequency lock-in phenomenon.” The gas is pressed into and out of the branch in sinusoidal mode during excitation. The first-order frequency, single vortex moves at the branch inlet following the same pattern. A quarter wavelength steady standing wave forms in the branch. The mechanism and characteristics presented in this paper may provide guidelines for developing new excitation suppression methods. |
| format | Article |
| id | doaj-art-98ba2e0aa8c8482c970b889db102167c |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-98ba2e0aa8c8482c970b889db102167c2025-08-20T03:37:23ZengWileyShock and Vibration1070-96221875-92032020-01-01202010.1155/2020/88578388857838Numerical Study on Acoustic Resonance Excitation in Closed Side Branch Pipeline Conveying Natural GasLiuyi Jiang0Hong Zhang1Qingquan Duan2Yulong Zhang3College of Safety and Ocean Engineering, China University of Petroleum, Beijing 102249, ChinaNational Engineering Laboratory for Pipeline Safety, MOE Key Laboratory of Petroleum Engineering, Beijing Key Laboratory of Urban Oil and Gas Distribution Technology, China University of Petroleum (Beijing), Beijing 102249, ChinaCollege of Safety and Ocean Engineering, China University of Petroleum, Beijing 102249, ChinaCollege of Safety and Ocean Engineering, China University of Petroleum, Beijing 102249, ChinaFlow-induced acoustic resonance in the closed side branch of a natural gas pipeline can cause intensive vibration which threatens the safe operation of the pipeline. Accurately modeling this excitation process is necessary for a workable understanding of the genetic mechanism to resolve this problem. A realizable k-ε Delayed Detached Eddy Simulation (DDES) model was conducted in this study to numerically simulate the acoustic resonance problem. The model is shown to accurately capture the acoustic resonance phenomenon and self-excited vibration characteristics with low calculation cost. The pressure pulsation component of the acoustic resonance frequency is gradually amplified and transformed into a narrowband dominant frequency in the process of acoustic resonance excitation, forming a so-called “frequency lock-in phenomenon.” The gas is pressed into and out of the branch in sinusoidal mode during excitation. The first-order frequency, single vortex moves at the branch inlet following the same pattern. A quarter wavelength steady standing wave forms in the branch. The mechanism and characteristics presented in this paper may provide guidelines for developing new excitation suppression methods.http://dx.doi.org/10.1155/2020/8857838 |
| spellingShingle | Liuyi Jiang Hong Zhang Qingquan Duan Yulong Zhang Numerical Study on Acoustic Resonance Excitation in Closed Side Branch Pipeline Conveying Natural Gas Shock and Vibration |
| title | Numerical Study on Acoustic Resonance Excitation in Closed Side Branch Pipeline Conveying Natural Gas |
| title_full | Numerical Study on Acoustic Resonance Excitation in Closed Side Branch Pipeline Conveying Natural Gas |
| title_fullStr | Numerical Study on Acoustic Resonance Excitation in Closed Side Branch Pipeline Conveying Natural Gas |
| title_full_unstemmed | Numerical Study on Acoustic Resonance Excitation in Closed Side Branch Pipeline Conveying Natural Gas |
| title_short | Numerical Study on Acoustic Resonance Excitation in Closed Side Branch Pipeline Conveying Natural Gas |
| title_sort | numerical study on acoustic resonance excitation in closed side branch pipeline conveying natural gas |
| url | http://dx.doi.org/10.1155/2020/8857838 |
| work_keys_str_mv | AT liuyijiang numericalstudyonacousticresonanceexcitationinclosedsidebranchpipelineconveyingnaturalgas AT hongzhang numericalstudyonacousticresonanceexcitationinclosedsidebranchpipelineconveyingnaturalgas AT qingquanduan numericalstudyonacousticresonanceexcitationinclosedsidebranchpipelineconveyingnaturalgas AT yulongzhang numericalstudyonacousticresonanceexcitationinclosedsidebranchpipelineconveyingnaturalgas |