THREE-DIMENSIONAL NON-HYDROSTATIC MODEL FOR FREE-SURFACE FLOWS WITH UNSTRUCTURED GRID
The three-dimensional Navier-Stokes equations were solved with the fractional step method where the hydrostatic pressure component was determined first, while the non-hydrostatic component of the pressure was computed from the pressure Poisson equation in which the coefficient matrix is positive def...
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| Veröffentlicht in: | Journal of Hydrodynamics 2008-02, Vol.20 (1), p.108-116 |
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| creator | AI, Cong-fang JIN, Sheng |
| description | The three-dimensional Navier-Stokes equations were solved with the fractional step method where the hydrostatic pressure component was determined first, while the non-hydrostatic component of the pressure was computed from the pressure Poisson equation in which the coefficient matrix is positive definite and symmetric. The eddy viscosity was calculated from the efficient k-ε turbulence model. The resulting model is computationally efficient and unrestricted to the CFL condition. Computations with and without hydrostatic approximation were compared for the same cases to test the validity of the conventional hydrostatic pressure assumption. The model was verified against analytical solutions and experimental data, with excellent agreement. |
| doi_str_mv | 10.1016/S1001-6058(08)60035-9 |
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The eddy viscosity was calculated from the efficient k-ε turbulence model. The resulting model is computationally efficient and unrestricted to the CFL condition. Computations with and without hydrostatic approximation were compared for the same cases to test the validity of the conventional hydrostatic pressure assumption. 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The eddy viscosity was calculated from the efficient k-ε turbulence model. The resulting model is computationally efficient and unrestricted to the CFL condition. Computations with and without hydrostatic approximation were compared for the same cases to test the validity of the conventional hydrostatic pressure assumption. The model was verified against analytical solutions and experimental data, with excellent agreement.</description><subject>Engineering</subject><subject>Engineering Fluid Dynamics</subject><subject>free surface flow</subject><subject>Hydrology/Water Resources</subject><subject>k-ɛ turbulence model</subject><subject>non-hydrostatic</subject><subject>Numerical and Computational Physics</subject><subject>Simulation</subject><subject>unstructured grid</subject><subject>流体静力学</subject><subject>自由表面流</subject><issn>1001-6058</issn><issn>1878-0342</issn><issn>1000-4874</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><recordid>eNqFkVtr3DAQhU1poWnan1AwfSgt1M1I8kV-KosvWYNjgy-EPgmtLG-9dezE2k2y-fWV44Q-LpIYPXznzHDGMD4j-IkAuRclAkCWCw79BvS7C0Acy39jnCHqUQuIjd_q_yvy3vig1E4zrg_2mVFX6yKKrDC5irIyybNVamZ5Zq1_h0VeVqsqCcyrPIxSM84LM57Rsi7iVRCZcZpfl-Z1Uq3NOiurog6quohC87JIwo_Gu5b3Sn56qedGHUdVsLbS_DIJVqklbIr3Fmk3LgIHe9hpCHe5sPVxEAhCJEZO62-w8ARCjYcptpG-vnRw2wJpOUIckXPjx-L7wIeWD1u2Gw_ToDsy1fSPx91x98QkBqAwB6Xxrwt-O413B6n27KZTQvY9H-R4UIwQ5BGq3ykQ-cSjGM-OzgKKaVRqki27nbobPh0ZAjb3ZM_LYXPyDCh7Xg7ztc5ddErzw1ZO_yc_Jfy1CKWO9b7TQiU6OQjZdJMUe9aM3UmHLy8j_xmH7Z3uzjZc_G27XjLsutTG4JF_wD2pXA</recordid><startdate>20080201</startdate><enddate>20080201</enddate><creator>AI, Cong-fang</creator><creator>JIN, Sheng</creator><general>Elsevier Ltd</general><general>Springer Singapore</general><general>State Key Laboratory of Coastal and offshore Engineering, Dalian University of Technology, Dalian 116024, China</general><scope>2RA</scope><scope>92L</scope><scope>CQIGP</scope><scope>W92</scope><scope>~WA</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>F1W</scope><scope>H96</scope><scope>L.G</scope><scope>7TB</scope><scope>7U5</scope><scope>8FD</scope><scope>FR3</scope><scope>H8D</scope><scope>KR7</scope><scope>L7M</scope><scope>2B.</scope><scope>4A8</scope><scope>92I</scope><scope>93N</scope><scope>PSX</scope><scope>TCJ</scope></search><sort><creationdate>20080201</creationdate><title>THREE-DIMENSIONAL NON-HYDROSTATIC MODEL FOR FREE-SURFACE FLOWS WITH UNSTRUCTURED GRID</title><author>AI, Cong-fang ; JIN, Sheng</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c482t-3fb61052725d3a6ac4c4c510c33e215f9b2c7c11d7282412419e52ff03fa11a13</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>Engineering</topic><topic>Engineering Fluid Dynamics</topic><topic>free surface flow</topic><topic>Hydrology/Water Resources</topic><topic>k-ɛ turbulence model</topic><topic>non-hydrostatic</topic><topic>Numerical and Computational Physics</topic><topic>Simulation</topic><topic>unstructured grid</topic><topic>流体静力学</topic><topic>自由表面流</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>AI, Cong-fang</creatorcontrib><creatorcontrib>JIN, Sheng</creatorcontrib><collection>中文科技期刊数据库</collection><collection>中文科技期刊数据库-CALIS站点</collection><collection>中文科技期刊数据库-7.0平台</collection><collection>中文科技期刊数据库-工程技术</collection><collection>中文科技期刊数据库- 镜像站点</collection><collection>CrossRef</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</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>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Wanfang Data Journals - Hong Kong</collection><collection>WANFANG Data Centre</collection><collection>Wanfang Data Journals</collection><collection>万方数据期刊 - 香港版</collection><collection>China Online Journals (COJ)</collection><collection>China Online Journals (COJ)</collection><jtitle>Journal of Hydrodynamics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>AI, Cong-fang</au><au>JIN, Sheng</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>THREE-DIMENSIONAL NON-HYDROSTATIC MODEL FOR FREE-SURFACE FLOWS WITH UNSTRUCTURED GRID</atitle><jtitle>Journal of Hydrodynamics</jtitle><stitle>J Hydrodyn</stitle><addtitle>Journal of Hydrodynamics</addtitle><date>2008-02-01</date><risdate>2008</risdate><volume>20</volume><issue>1</issue><spage>108</spage><epage>116</epage><pages>108-116</pages><issn>1001-6058</issn><eissn>1878-0342</eissn><eissn>1000-4874</eissn><abstract>The three-dimensional Navier-Stokes equations were solved with the fractional step method where the hydrostatic pressure component was determined first, while the non-hydrostatic component of the pressure was computed from the pressure Poisson equation in which the coefficient matrix is positive definite and symmetric. The eddy viscosity was calculated from the efficient k-ε turbulence model. The resulting model is computationally efficient and unrestricted to the CFL condition. Computations with and without hydrostatic approximation were compared for the same cases to test the validity of the conventional hydrostatic pressure assumption. The model was verified against analytical solutions and experimental data, with excellent agreement.</abstract><cop>Singapore</cop><pub>Elsevier Ltd</pub><doi>10.1016/S1001-6058(08)60035-9</doi><tpages>9</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1001-6058 |
| ispartof | Journal of Hydrodynamics, 2008-02, Vol.20 (1), p.108-116 |
| issn | 1001-6058 1878-0342 1000-4874 |
| language | eng |
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| source | Elsevier ScienceDirect Journals Complete; SpringerLink Journals; Alma/SFX Local Collection |
| subjects | Engineering Engineering Fluid Dynamics free surface flow Hydrology/Water Resources k-ɛ turbulence model non-hydrostatic Numerical and Computational Physics Simulation unstructured grid 流体静力学 自由表面流 |
| title | THREE-DIMENSIONAL NON-HYDROSTATIC MODEL FOR FREE-SURFACE FLOWS WITH UNSTRUCTURED GRID |
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