An Experimental Study on Transient Pressure Changes in a Horizontal Two-Phase Slug Flow
Transient flow in a conduit is an unsteady flow, followed by the change in the flow rate. Transient flow analysis is commonly based on the assumption of no air entrainment in the liquid phase. However, air entrainment in the liquid flow frequently occurs in the pipelines. Experimental study has been...
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| Format: | Article |
| Language: | English |
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Water and Wastewater Consulting Engineers Research Development
2013-08-01
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| Series: | آب و فاضلاب |
| Online Access: | http://www.wwjournal.ir/article_3097_fc56dc37d656dbcd00655d1f42fd1117.pdf |
| _version_ | 1818726096731897856 |
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| author | Amin Eyhavand koohzadi Seyyed Mahmoud Borghei Abdolreza Kabiri Samani |
| author_facet | Amin Eyhavand koohzadi Seyyed Mahmoud Borghei Abdolreza Kabiri Samani |
| author_sort | Amin Eyhavand koohzadi |
| collection | DOAJ |
| description | Transient flow in a conduit is an unsteady flow, followed by the change in the flow rate. Transient flow analysis is commonly based on the assumption of no air entrainment in the liquid phase. However, air entrainment in the liquid flow frequently occurs in the pipelines. Experimental study has been carried out to investigate the characteristics of transient pressure in a two-phase, air-water slug flow inside a rectangular, horizontal pipeline. Pressure surges propagating the pipeline that results transient pressure changes have been studied by rapidly closing a sluice gate inside the pipeline. The pressure variations have been recorded by installing different pressure transducers to the pipe. The results showed that increasing the air/water discharge ratio affects the transient pressure distribution in pipeline significantly. In the downstream 10% of pipeline length, pressure variation is considerably sharp, fast damping, and with higher peak. In other sections of conduit, low-frequency pressure changes were observed which were damped slowly. |
| first_indexed | 2024-12-17T21:52:47Z |
| format | Article |
| id | doaj.art-843bddcae314488aa3837ccd2e7a51fd |
| institution | Directory Open Access Journal |
| issn | 1024-5936 2383-0905 |
| language | English |
| last_indexed | 2024-12-17T21:52:47Z |
| publishDate | 2013-08-01 |
| publisher | Water and Wastewater Consulting Engineers Research Development |
| record_format | Article |
| series | آب و فاضلاب |
| spelling | doaj.art-843bddcae314488aa3837ccd2e7a51fd2022-12-21T21:31:12ZengWater and Wastewater Consulting Engineers Research Developmentآب و فاضلاب1024-59362383-09052013-08-01242961023097An Experimental Study on Transient Pressure Changes in a Horizontal Two-Phase Slug FlowAmin Eyhavand koohzadi0Seyyed Mahmoud Borghei1Abdolreza Kabiri Samani2دانشآموخته کارشناسی ارشد مهندسی عمران، دانشگاه صنعتی شریف، تهراناستاد دانشکده مهندسی عمران، دانشگاه صنعتی شریف، تهراندانشیار دانشکده مهندسی عمران، دانشگاه صنعتی اصفهانTransient flow in a conduit is an unsteady flow, followed by the change in the flow rate. Transient flow analysis is commonly based on the assumption of no air entrainment in the liquid phase. However, air entrainment in the liquid flow frequently occurs in the pipelines. Experimental study has been carried out to investigate the characteristics of transient pressure in a two-phase, air-water slug flow inside a rectangular, horizontal pipeline. Pressure surges propagating the pipeline that results transient pressure changes have been studied by rapidly closing a sluice gate inside the pipeline. The pressure variations have been recorded by installing different pressure transducers to the pipe. The results showed that increasing the air/water discharge ratio affects the transient pressure distribution in pipeline significantly. In the downstream 10% of pipeline length, pressure variation is considerably sharp, fast damping, and with higher peak. In other sections of conduit, low-frequency pressure changes were observed which were damped slowly.http://www.wwjournal.ir/article_3097_fc56dc37d656dbcd00655d1f42fd1117.pdf |
| spellingShingle | Amin Eyhavand koohzadi Seyyed Mahmoud Borghei Abdolreza Kabiri Samani An Experimental Study on Transient Pressure Changes in a Horizontal Two-Phase Slug Flow آب و فاضلاب |
| title | An Experimental Study on Transient Pressure Changes in a Horizontal Two-Phase Slug Flow |
| title_full | An Experimental Study on Transient Pressure Changes in a Horizontal Two-Phase Slug Flow |
| title_fullStr | An Experimental Study on Transient Pressure Changes in a Horizontal Two-Phase Slug Flow |
| title_full_unstemmed | An Experimental Study on Transient Pressure Changes in a Horizontal Two-Phase Slug Flow |
| title_short | An Experimental Study on Transient Pressure Changes in a Horizontal Two-Phase Slug Flow |
| title_sort | experimental study on transient pressure changes in a horizontal two phase slug flow |
| url | http://www.wwjournal.ir/article_3097_fc56dc37d656dbcd00655d1f42fd1117.pdf |
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