Validation of OpenFOAM numerical methods and turbulence models for incompressible bluff body flows
•Grid verification and scalability studied of OpenFOAM.•Validate OpenFOAM numerical methods and turbulence models.•Validation for a range of canonical tests, and engineering application.•User guidelines for best scheme/model options in OpenFOAM. A verification and validation study was performed usin...
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| Veröffentlicht in: | Computers & fluids 2015-12, Vol.123, p.122-145 |
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| creator | Robertson, E. Choudhury, V. Bhushan, S. Walters, D.K. |
| description | •Grid verification and scalability studied of OpenFOAM.•Validate OpenFOAM numerical methods and turbulence models.•Validation for a range of canonical tests, and engineering application.•User guidelines for best scheme/model options in OpenFOAM.
A verification and validation study was performed using the open source computational fluid dynamics solver OpenFOAM version 2.0.0 for incompressible bluff body fluid flows. This includes flow over a backward facing step, a sphere in the subcritical regime, and delta wing with sharp leading edge. The study investigates solver scalability, and accuracy of numerical methods and turbulence models available in the solver. Grid verification study shows mostly monotonic convergence with averaged grid uncertainty |
| doi_str_mv | 10.1016/j.compfluid.2015.09.010 |
| format | Article |
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A verification and validation study was performed using the open source computational fluid dynamics solver OpenFOAM version 2.0.0 for incompressible bluff body fluid flows. This includes flow over a backward facing step, a sphere in the subcritical regime, and delta wing with sharp leading edge. The study investigates solver scalability, and accuracy of numerical methods and turbulence models available in the solver. Grid verification study shows mostly monotonic convergence with averaged grid uncertainty <5% for integral quantities and up to 10% for local variables. The solver shows good strong scalability up to 192 processors on a mesh with 11M cells. The study identifies that the 2nd order linear upwind scheme is most efficient and accurate for Reynolds Averaged Navier Stokes (RANS) simulations, while the 1st/2nd order blended limited linear scheme is best for simulations employing hybrid RANS/Large Eddy Simulation (HRL). PIMPLE and SIMPLE pressure–velocity coupling methods are identified to be best for HRL and RANS simulations, respectively. The validation study showed that drag and mean velocity predictions compared within 5% of the experimental data, whereas larger errors were predicted for turbulent kinetic energy and instability frequency predictions. OpenFOAM predictions compared within 6% of FLUENT results for backward facing step and sphere cases, and performed better than the latter for the delta wing vortex breakdown predictions. Overall, OpenFOAM is found to be a reliable research solver; however, it is more sensitivity to grid quality than FLUENT, which needs to be further investigated.</description><identifier>ISSN: 0045-7930</identifier><identifier>EISSN: 1879-0747</identifier><identifier>DOI: 10.1016/j.compfluid.2015.09.010</identifier><language>eng</language><publisher>Elsevier Ltd</publisher><subject>Computational fluid dynamics ; Computer simulation ; Fluid flow ; Navier-Stokes equations ; Numerical analysis ; Numerical methods ; OpenFOAM ; Solvers ; Turbulence ; Turbulence models ; Turbulent flow ; Verification and validation</subject><ispartof>Computers & fluids, 2015-12, Vol.123, p.122-145</ispartof><rights>2015 Elsevier Ltd</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c414t-aaf718d4259580bae4b03b35080530ce0b87fff17fa211638a85b826110a6bcf3</citedby><cites>FETCH-LOGICAL-c414t-aaf718d4259580bae4b03b35080530ce0b87fff17fa211638a85b826110a6bcf3</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.2015.09.010$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids></links><search><creatorcontrib>Robertson, E.</creatorcontrib><creatorcontrib>Choudhury, V.</creatorcontrib><creatorcontrib>Bhushan, S.</creatorcontrib><creatorcontrib>Walters, D.K.</creatorcontrib><title>Validation of OpenFOAM numerical methods and turbulence models for incompressible bluff body flows</title><title>Computers & fluids</title><description>•Grid verification and scalability studied of OpenFOAM.•Validate OpenFOAM numerical methods and turbulence models.•Validation for a range of canonical tests, and engineering application.•User guidelines for best scheme/model options in OpenFOAM.
A verification and validation study was performed using the open source computational fluid dynamics solver OpenFOAM version 2.0.0 for incompressible bluff body fluid flows. This includes flow over a backward facing step, a sphere in the subcritical regime, and delta wing with sharp leading edge. The study investigates solver scalability, and accuracy of numerical methods and turbulence models available in the solver. Grid verification study shows mostly monotonic convergence with averaged grid uncertainty <5% for integral quantities and up to 10% for local variables. The solver shows good strong scalability up to 192 processors on a mesh with 11M cells. The study identifies that the 2nd order linear upwind scheme is most efficient and accurate for Reynolds Averaged Navier Stokes (RANS) simulations, while the 1st/2nd order blended limited linear scheme is best for simulations employing hybrid RANS/Large Eddy Simulation (HRL). PIMPLE and SIMPLE pressure–velocity coupling methods are identified to be best for HRL and RANS simulations, respectively. The validation study showed that drag and mean velocity predictions compared within 5% of the experimental data, whereas larger errors were predicted for turbulent kinetic energy and instability frequency predictions. OpenFOAM predictions compared within 6% of FLUENT results for backward facing step and sphere cases, and performed better than the latter for the delta wing vortex breakdown predictions. Overall, OpenFOAM is found to be a reliable research solver; however, it is more sensitivity to grid quality than FLUENT, which needs to be further investigated.</description><subject>Computational fluid dynamics</subject><subject>Computer simulation</subject><subject>Fluid flow</subject><subject>Navier-Stokes equations</subject><subject>Numerical analysis</subject><subject>Numerical methods</subject><subject>OpenFOAM</subject><subject>Solvers</subject><subject>Turbulence</subject><subject>Turbulence models</subject><subject>Turbulent flow</subject><subject>Verification and validation</subject><issn>0045-7930</issn><issn>1879-0747</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNqFkEtPIzEQhC0EEiHwG_CRywztedlzjCLYXYlVLrtcLT_awpFnHOwZUP79ThTEdU-llqpKXR8h9wxKBqx73JcmDgcXZm_LClhbQl8CgwuyYoL3BfCGX5IVQNMWvK_hmtzkvIflrqtmRfSrCt6qyceRRkd3Bxyfd5vfdJwHTN6oQAec3qLNVI2WTnPSc8DRIB2ixZCpi4n68fRBwpy9Dkh1mJ2jOtojdSF-5lty5VTIePela_L3-enP9mfxsvvxa7t5KUzDmqlQynEmbFO1fStAK2w01LpuQUBbg0HQgjvnGHeqYqyrhRKtFlXHGKhOG1evycO595Di-4x5koPPBkNQI8Y5SyZYB21X8Wax8rPVpJhzQicPyQ8qHSUDeaIq9_KbqjxRldDLheqS3JyTy3j88JhkNv4ExPqEZpI2-v92_ANbSoYQ</recordid><startdate>20151221</startdate><enddate>20151221</enddate><creator>Robertson, E.</creator><creator>Choudhury, V.</creator><creator>Bhushan, S.</creator><creator>Walters, D.K.</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>20151221</creationdate><title>Validation of OpenFOAM numerical methods and turbulence models for incompressible bluff body flows</title><author>Robertson, E. ; Choudhury, V. ; Bhushan, S. ; Walters, D.K.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c414t-aaf718d4259580bae4b03b35080530ce0b87fff17fa211638a85b826110a6bcf3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Computational fluid dynamics</topic><topic>Computer simulation</topic><topic>Fluid flow</topic><topic>Navier-Stokes equations</topic><topic>Numerical analysis</topic><topic>Numerical methods</topic><topic>OpenFOAM</topic><topic>Solvers</topic><topic>Turbulence</topic><topic>Turbulence models</topic><topic>Turbulent flow</topic><topic>Verification and validation</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Robertson, E.</creatorcontrib><creatorcontrib>Choudhury, V.</creatorcontrib><creatorcontrib>Bhushan, S.</creatorcontrib><creatorcontrib>Walters, D.K.</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>Robertson, E.</au><au>Choudhury, V.</au><au>Bhushan, S.</au><au>Walters, D.K.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Validation of OpenFOAM numerical methods and turbulence models for incompressible bluff body flows</atitle><jtitle>Computers & fluids</jtitle><date>2015-12-21</date><risdate>2015</risdate><volume>123</volume><spage>122</spage><epage>145</epage><pages>122-145</pages><issn>0045-7930</issn><eissn>1879-0747</eissn><abstract>•Grid verification and scalability studied of OpenFOAM.•Validate OpenFOAM numerical methods and turbulence models.•Validation for a range of canonical tests, and engineering application.•User guidelines for best scheme/model options in OpenFOAM.
A verification and validation study was performed using the open source computational fluid dynamics solver OpenFOAM version 2.0.0 for incompressible bluff body fluid flows. This includes flow over a backward facing step, a sphere in the subcritical regime, and delta wing with sharp leading edge. The study investigates solver scalability, and accuracy of numerical methods and turbulence models available in the solver. Grid verification study shows mostly monotonic convergence with averaged grid uncertainty <5% for integral quantities and up to 10% for local variables. The solver shows good strong scalability up to 192 processors on a mesh with 11M cells. The study identifies that the 2nd order linear upwind scheme is most efficient and accurate for Reynolds Averaged Navier Stokes (RANS) simulations, while the 1st/2nd order blended limited linear scheme is best for simulations employing hybrid RANS/Large Eddy Simulation (HRL). PIMPLE and SIMPLE pressure–velocity coupling methods are identified to be best for HRL and RANS simulations, respectively. The validation study showed that drag and mean velocity predictions compared within 5% of the experimental data, whereas larger errors were predicted for turbulent kinetic energy and instability frequency predictions. OpenFOAM predictions compared within 6% of FLUENT results for backward facing step and sphere cases, and performed better than the latter for the delta wing vortex breakdown predictions. Overall, OpenFOAM is found to be a reliable research solver; however, it is more sensitivity to grid quality than FLUENT, which needs to be further investigated.</abstract><pub>Elsevier Ltd</pub><doi>10.1016/j.compfluid.2015.09.010</doi><tpages>24</tpages></addata></record> |
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| source | Access via ScienceDirect (Elsevier) |
| subjects | Computational fluid dynamics Computer simulation Fluid flow Navier-Stokes equations Numerical analysis Numerical methods OpenFOAM Solvers Turbulence Turbulence models Turbulent flow Verification and validation |
| title | Validation of OpenFOAM numerical methods and turbulence models for incompressible bluff body flows |
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