Effect of viscosity changes on the motion of debris flow by considering entrainment
Debris flows are typical two-phase flows that commonly occur with entrainment. By involving sediment materials, the fluid viscosity of debris flow may change significantly along with the variety of solid volume fraction, which further influences debris flow routing. To address this issue, a two-phas...
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| Veröffentlicht in: | Journal of hydraulic research 2021-01, Vol.59 (1), p.120-135 |
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| creator | Liu, Wei He, Siming Chen, Zheng Yan, Shuaixing Deng, Yu |
| description | Debris flows are typical two-phase flows that commonly occur with entrainment. By involving sediment materials, the fluid viscosity of debris flow may change significantly along with the variety of solid volume fraction, which further influences debris flow routing. To address this issue, a two-phase model is incorporated with a correlation for the apparent viscosity of the mixture and an entrainment formula, which is applied for studying how the changing fluid viscosity affects the interaction force between the solid and fluid phases during flow propagation. A second-order accuracy numerical scheme based on the finite volume method is applied to solve model equations. The numerical results correlate well with the available experimental data, and indicate the importance of viscosity changes in debris flow routing. |
| doi_str_mv | 10.1080/00221686.2020.1744746 |
| format | Article |
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By involving sediment materials, the fluid viscosity of debris flow may change significantly along with the variety of solid volume fraction, which further influences debris flow routing. To address this issue, a two-phase model is incorporated with a correlation for the apparent viscosity of the mixture and an entrainment formula, which is applied for studying how the changing fluid viscosity affects the interaction force between the solid and fluid phases during flow propagation. A second-order accuracy numerical scheme based on the finite volume method is applied to solve model equations. The numerical results correlate well with the available experimental data, and indicate the importance of viscosity changes in debris flow routing.</description><identifier>ISSN: 0022-1686</identifier><identifier>EISSN: 1814-2079</identifier><identifier>DOI: 10.1080/00221686.2020.1744746</identifier><language>eng</language><publisher>ABINGDON: Taylor & Francis</publisher><subject>Debris flow ; Detritus ; Engineering ; Engineering, Civil ; Entrainment ; Finite volume method ; Fluid flow ; fluid viscosity ; Mathematical models ; numerical investigation ; phase volume fraction ; Physical Sciences ; Routing ; Science & Technology ; Technology ; Two phase flow ; two-phase debris flows ; Viscosity ; Water Resources</subject><ispartof>Journal of hydraulic research, 2021-01, Vol.59 (1), p.120-135</ispartof><rights>2020 International Association for Hydro-Environment Engineering and Research 2020</rights><rights>2020 International Association for Hydro-Environment Engineering and Research</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>true</woscitedreferencessubscribed><woscitedreferencescount>12</woscitedreferencescount><woscitedreferencesoriginalsourcerecordid>wos000550853100001</woscitedreferencesoriginalsourcerecordid><citedby>FETCH-LOGICAL-c338t-30254a7c2fdfa0bd7f0e642cea641823a0e9c2a1a96800cdc05032b85929c4e93</citedby><cites>FETCH-LOGICAL-c338t-30254a7c2fdfa0bd7f0e642cea641823a0e9c2a1a96800cdc05032b85929c4e93</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.tandfonline.com/doi/pdf/10.1080/00221686.2020.1744746$$EPDF$$P50$$Ginformaworld$$H</linktopdf><linktohtml>$$Uhttps://www.tandfonline.com/doi/full/10.1080/00221686.2020.1744746$$EHTML$$P50$$Ginformaworld$$H</linktohtml><link.rule.ids>315,781,785,27928,27929,39262,59651,60440</link.rule.ids></links><search><creatorcontrib>Liu, Wei</creatorcontrib><creatorcontrib>He, Siming</creatorcontrib><creatorcontrib>Chen, Zheng</creatorcontrib><creatorcontrib>Yan, Shuaixing</creatorcontrib><creatorcontrib>Deng, Yu</creatorcontrib><title>Effect of viscosity changes on the motion of debris flow by considering entrainment</title><title>Journal of hydraulic research</title><addtitle>J HYDRAUL RES</addtitle><description>Debris flows are typical two-phase flows that commonly occur with entrainment. By involving sediment materials, the fluid viscosity of debris flow may change significantly along with the variety of solid volume fraction, which further influences debris flow routing. To address this issue, a two-phase model is incorporated with a correlation for the apparent viscosity of the mixture and an entrainment formula, which is applied for studying how the changing fluid viscosity affects the interaction force between the solid and fluid phases during flow propagation. A second-order accuracy numerical scheme based on the finite volume method is applied to solve model equations. The numerical results correlate well with the available experimental data, and indicate the importance of viscosity changes in debris flow routing.</description><subject>Debris flow</subject><subject>Detritus</subject><subject>Engineering</subject><subject>Engineering, Civil</subject><subject>Entrainment</subject><subject>Finite volume method</subject><subject>Fluid flow</subject><subject>fluid viscosity</subject><subject>Mathematical models</subject><subject>numerical investigation</subject><subject>phase volume fraction</subject><subject>Physical Sciences</subject><subject>Routing</subject><subject>Science & Technology</subject><subject>Technology</subject><subject>Two phase flow</subject><subject>two-phase debris flows</subject><subject>Viscosity</subject><subject>Water Resources</subject><issn>0022-1686</issn><issn>1814-2079</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><sourceid>HGBXW</sourceid><recordid>eNqNkE1PAyEQhonRxPrxE0xIPJqtA8uy7E3T-JWYeFDPhGWhxbSgQG3672VT9Wg8zTB5XmAehM4ITAkIuASglHDBpxRoGbWMtYzvoQkRhFUU2m4fTUamGqFDdJTSWzly3vEJer6x1uiMg8WfLumQXN5ivVB-bhIOHueFwauQXWkLMpg-uoTtMmxwX7jgkxtMdH6Ojc9ROb8q9QQdWLVM5vS7HqPX25uX2X31-HT3MLt-rHRdi1zVQBumWk3tYBX0Q2vBcEa1UZwRQWsFptNUEdVxAaAHDQ3UtBdNRzvNTFcfo_Pdve8xfKxNyvItrKMvT0rKhBC87CwK1ewoHUNK0Vj5Ht1Kxa0kIEd_8sefHP3Jb38ld7HLbUwfbNLOeG1-swDQNCCampQOSKHF_-mZy2pUOgtrn0v0ahd13oa4UpsQl4PMarsM0UbltUuy_vuvX04al2g</recordid><startdate>20210102</startdate><enddate>20210102</enddate><creator>Liu, Wei</creator><creator>He, Siming</creator><creator>Chen, Zheng</creator><creator>Yan, Shuaixing</creator><creator>Deng, Yu</creator><general>Taylor & Francis</general><general>Taylor & Francis Ltd</general><scope>BLEPL</scope><scope>DTL</scope><scope>HGBXW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QH</scope><scope>7TB</scope><scope>7UA</scope><scope>8FD</scope><scope>C1K</scope><scope>F1W</scope><scope>FR3</scope><scope>H96</scope><scope>KR7</scope><scope>L.G</scope></search><sort><creationdate>20210102</creationdate><title>Effect of viscosity changes on the motion of debris flow by considering entrainment</title><author>Liu, Wei ; 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By involving sediment materials, the fluid viscosity of debris flow may change significantly along with the variety of solid volume fraction, which further influences debris flow routing. To address this issue, a two-phase model is incorporated with a correlation for the apparent viscosity of the mixture and an entrainment formula, which is applied for studying how the changing fluid viscosity affects the interaction force between the solid and fluid phases during flow propagation. A second-order accuracy numerical scheme based on the finite volume method is applied to solve model equations. The numerical results correlate well with the available experimental data, and indicate the importance of viscosity changes in debris flow routing.</abstract><cop>ABINGDON</cop><pub>Taylor & Francis</pub><doi>10.1080/00221686.2020.1744746</doi><tpages>16</tpages></addata></record> |
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| source | Taylor & Francis:Master (3349 titles); Web of Science - Science Citation Index Expanded - 2021<img src="https://exlibris-pub.s3.amazonaws.com/fromwos-v2.jpg" /> |
| subjects | Debris flow Detritus Engineering Engineering, Civil Entrainment Finite volume method Fluid flow fluid viscosity Mathematical models numerical investigation phase volume fraction Physical Sciences Routing Science & Technology Technology Two phase flow two-phase debris flows Viscosity Water Resources |
| title | Effect of viscosity changes on the motion of debris flow by considering entrainment |
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