Computational fluid dynamic simulation of small leaks in water pipelines for direct leak pressure transduction
Computational fluid dynamic simulation of small leaks in a pipe having 0.1m diameter has been performed under realistic velocities and pressures using a 3D turbulent flow model of well tested CFD code. The steady state simulations have shown clear signature in the pressure and pressure gradient vari...
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Veröffentlicht in: | Computers & fluids 2012-03, Vol.57, p.110-123 |
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creator | Ben-Mansour, R. Habib, M.A. Khalifa, A. Youcef-Toumi, K. Chatzigeorgiou, D. |
description | Computational fluid dynamic simulation of small leaks in a pipe having 0.1m diameter has been performed under realistic velocities and pressures using a 3D turbulent flow model of well tested CFD code. The steady state simulations have shown clear signature in the pressure and pressure gradient variations along the pipe. For very small leaks (below 1l/min), this signature in not very strong in the pressure variation, but very clear in the pressure gradient. The averaged power spectral density (PSD) as well as FFT of the pressure fluctuations based on transient Detached Eddy Simulations (DESs) are presented for different locations around the leak position. These results show that the presence of a leak causes measurable differences in the magnitude and frequency of the pressure signal spectrum and also in the averaged PSD for the range of 220–500Hz frequency. |
doi_str_mv | 10.1016/j.compfluid.2011.12.016 |
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The steady state simulations have shown clear signature in the pressure and pressure gradient variations along the pipe. For very small leaks (below 1l/min), this signature in not very strong in the pressure variation, but very clear in the pressure gradient. The averaged power spectral density (PSD) as well as FFT of the pressure fluctuations based on transient Detached Eddy Simulations (DESs) are presented for different locations around the leak position. These results show that the presence of a leak causes measurable differences in the magnitude and frequency of the pressure signal spectrum and also in the averaged PSD for the range of 220–500Hz frequency.</description><identifier>ISSN: 0045-7930</identifier><identifier>EISSN: 1879-0747</identifier><identifier>DOI: 10.1016/j.compfluid.2011.12.016</identifier><language>eng</language><publisher>Elsevier Ltd</publisher><subject>Computational fluid dynamics ; Computer simulation ; Fluid flow ; Leak detection ; Leaks ; Marine ; Mathematical models ; Pressure transduction ; Signatures ; Turbulence ; Turbulent flow ; Water pipelines</subject><ispartof>Computers & fluids, 2012-03, Vol.57, p.110-123</ispartof><rights>2011 Elsevier Ltd</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c381t-416444d49b81e00156e0e9d736518145e6f2fe58ba15bda9070d6c1b45643dab3</citedby><cites>FETCH-LOGICAL-c381t-416444d49b81e00156e0e9d736518145e6f2fe58ba15bda9070d6c1b45643dab3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.compfluid.2011.12.016$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids></links><search><creatorcontrib>Ben-Mansour, R.</creatorcontrib><creatorcontrib>Habib, M.A.</creatorcontrib><creatorcontrib>Khalifa, A.</creatorcontrib><creatorcontrib>Youcef-Toumi, K.</creatorcontrib><creatorcontrib>Chatzigeorgiou, D.</creatorcontrib><title>Computational fluid dynamic simulation of small leaks in water pipelines for direct leak pressure transduction</title><title>Computers & fluids</title><description>Computational fluid dynamic simulation of small leaks in a pipe having 0.1m diameter has been performed under realistic velocities and pressures using a 3D turbulent flow model of well tested CFD code. The steady state simulations have shown clear signature in the pressure and pressure gradient variations along the pipe. For very small leaks (below 1l/min), this signature in not very strong in the pressure variation, but very clear in the pressure gradient. The averaged power spectral density (PSD) as well as FFT of the pressure fluctuations based on transient Detached Eddy Simulations (DESs) are presented for different locations around the leak position. These results show that the presence of a leak causes measurable differences in the magnitude and frequency of the pressure signal spectrum and also in the averaged PSD for the range of 220–500Hz frequency.</description><subject>Computational fluid dynamics</subject><subject>Computer simulation</subject><subject>Fluid flow</subject><subject>Leak detection</subject><subject>Leaks</subject><subject>Marine</subject><subject>Mathematical models</subject><subject>Pressure transduction</subject><subject>Signatures</subject><subject>Turbulence</subject><subject>Turbulent flow</subject><subject>Water pipelines</subject><issn>0045-7930</issn><issn>1879-0747</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNqFkU1LxDAQhoMouH78BnP00ppp0qQ9LotfIHjRc0iTKWRNP0xaZf-93V3x6mmYmed9YeYl5AZYDgzk3Ta3Qze2YfYuLxhADkW-zE_ICipVZ0wJdUpWjIkyUzVn5-QipS1bel6IFek3i3iezOSH3gR6sKFu15vOW5p8N4fDig4tTZ0JgQY0H4n6nn6bCSMd_YjB95hoO0TqfEQ7HRg6RkxpjkinaPrkZrv3uSJnrQkJr3_rJXl_uH_bPGUvr4_Pm_VLZnkFUyZACiGcqJsKkDEoJTKsneKyhApEibItWiyrxkDZOFMzxZy00IhSCu5Mwy_J7dF3jMPnjGnSnU8WQzA9DnPSIBWIuqoq-T_KoJacc6kWVB1RG4eUIrZ6jL4zcbdAe07qrf4LQ-_D0FDoZb4o10clLkd_eYw6WY-9xePHtBv8vx4__eGY3A</recordid><startdate>20120330</startdate><enddate>20120330</enddate><creator>Ben-Mansour, R.</creator><creator>Habib, M.A.</creator><creator>Khalifa, A.</creator><creator>Youcef-Toumi, K.</creator><creator>Chatzigeorgiou, D.</creator><general>Elsevier Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SC</scope><scope>7TB</scope><scope>7U5</scope><scope>8FD</scope><scope>FR3</scope><scope>H8D</scope><scope>JQ2</scope><scope>KR7</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope></search><sort><creationdate>20120330</creationdate><title>Computational fluid dynamic simulation of small leaks in water pipelines for direct leak pressure transduction</title><author>Ben-Mansour, R. ; Habib, M.A. ; Khalifa, A. ; Youcef-Toumi, K. ; Chatzigeorgiou, D.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c381t-416444d49b81e00156e0e9d736518145e6f2fe58ba15bda9070d6c1b45643dab3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Computational fluid dynamics</topic><topic>Computer simulation</topic><topic>Fluid flow</topic><topic>Leak detection</topic><topic>Leaks</topic><topic>Marine</topic><topic>Mathematical models</topic><topic>Pressure transduction</topic><topic>Signatures</topic><topic>Turbulence</topic><topic>Turbulent flow</topic><topic>Water pipelines</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ben-Mansour, R.</creatorcontrib><creatorcontrib>Habib, M.A.</creatorcontrib><creatorcontrib>Khalifa, A.</creatorcontrib><creatorcontrib>Youcef-Toumi, K.</creatorcontrib><creatorcontrib>Chatzigeorgiou, D.</creatorcontrib><collection>CrossRef</collection><collection>Computer and Information Systems Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>ProQuest Computer Science Collection</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Computer and Information Systems Abstracts Academic</collection><collection>Computer and Information Systems Abstracts Professional</collection><jtitle>Computers & fluids</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ben-Mansour, R.</au><au>Habib, M.A.</au><au>Khalifa, A.</au><au>Youcef-Toumi, K.</au><au>Chatzigeorgiou, D.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Computational fluid dynamic simulation of small leaks in water pipelines for direct leak pressure transduction</atitle><jtitle>Computers & fluids</jtitle><date>2012-03-30</date><risdate>2012</risdate><volume>57</volume><spage>110</spage><epage>123</epage><pages>110-123</pages><issn>0045-7930</issn><eissn>1879-0747</eissn><abstract>Computational fluid dynamic simulation of small leaks in a pipe having 0.1m diameter has been performed under realistic velocities and pressures using a 3D turbulent flow model of well tested CFD code. The steady state simulations have shown clear signature in the pressure and pressure gradient variations along the pipe. For very small leaks (below 1l/min), this signature in not very strong in the pressure variation, but very clear in the pressure gradient. The averaged power spectral density (PSD) as well as FFT of the pressure fluctuations based on transient Detached Eddy Simulations (DESs) are presented for different locations around the leak position. These results show that the presence of a leak causes measurable differences in the magnitude and frequency of the pressure signal spectrum and also in the averaged PSD for the range of 220–500Hz frequency.</abstract><pub>Elsevier Ltd</pub><doi>10.1016/j.compfluid.2011.12.016</doi><tpages>14</tpages></addata></record> |
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subjects | Computational fluid dynamics Computer simulation Fluid flow Leak detection Leaks Marine Mathematical models Pressure transduction Signatures Turbulence Turbulent flow Water pipelines |
title | Computational fluid dynamic simulation of small leaks in water pipelines for direct leak pressure transduction |
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