Optimization of flanges for diffuser casings of diffuser augmented wind turbines
Diffuser Augmented Wind Turbines (DAWTs) are used in harnessing of wind energy in a more efficient way compared to the conventional wind turbines. In this article, the mass flow rate through the shroud is increased by the addition of flanges at the aft of the shroud. Using Reynolds Averaged Navier S...
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| creator | Gaonkar, Ashwini Anand S., Surya R., Jayakrishnan |
| description | Diffuser Augmented Wind Turbines (DAWTs) are used in harnessing of wind energy in a more efficient way compared to the conventional wind turbines. In this article, the mass flow rate through the shroud is increased by the addition of flanges at the aft of the shroud. Using Reynolds Averaged Navier Stokes Equation along with k-ω SST turbulence models, the flow properties through the diffuser is obtained. The modeling of the diffuser was done using a NACA 9415 Airfoil in CATIA and running the simulations in ANSYS FLUENT. Grid Convergence Study was done for these results prior to further analysis. The flange angle and the height along with the open-angle of the diffuser were optimized for maximum mass flow rate through the rotor plane. The performance of the diffuser has been analyzed in terms of the swallowed mass flow rate, pressure variation along the diffuser and velocity at the rotor plane. |
| doi_str_mv | 10.1063/5.0024504 |
| format | Conference Proceeding |
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In this article, the mass flow rate through the shroud is increased by the addition of flanges at the aft of the shroud. Using Reynolds Averaged Navier Stokes Equation along with k-ω SST turbulence models, the flow properties through the diffuser is obtained. The modeling of the diffuser was done using a NACA 9415 Airfoil in CATIA and running the simulations in ANSYS FLUENT. Grid Convergence Study was done for these results prior to further analysis. The flange angle and the height along with the open-angle of the diffuser were optimized for maximum mass flow rate through the rotor plane. The performance of the diffuser has been analyzed in terms of the swallowed mass flow rate, pressure variation along the diffuser and velocity at the rotor plane.</description><identifier>ISSN: 0094-243X</identifier><identifier>EISSN: 1551-7616</identifier><identifier>DOI: 10.1063/5.0024504</identifier><identifier>CODEN: APCPCS</identifier><language>eng</language><publisher>Melville: American Institute of Physics</publisher><subject>Aerodynamics ; CAD ; Computational fluid dynamics ; Computer aided design ; Diffusers ; Flanges ; Flow control ; Mass flow rate ; Optimization ; Reynolds averaged Navier-Stokes method ; Rotors ; Turbulence models ; Turbulent flow ; Wind power ; Wind turbines</subject><ispartof>AIP conference proceedings, 2020, Vol.2273 (1)</ispartof><rights>Author(s)</rights><rights>2020 Author(s). 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In this article, the mass flow rate through the shroud is increased by the addition of flanges at the aft of the shroud. Using Reynolds Averaged Navier Stokes Equation along with k-ω SST turbulence models, the flow properties through the diffuser is obtained. The modeling of the diffuser was done using a NACA 9415 Airfoil in CATIA and running the simulations in ANSYS FLUENT. Grid Convergence Study was done for these results prior to further analysis. The flange angle and the height along with the open-angle of the diffuser were optimized for maximum mass flow rate through the rotor plane. The performance of the diffuser has been analyzed in terms of the swallowed mass flow rate, pressure variation along the diffuser and velocity at the rotor plane.</description><subject>Aerodynamics</subject><subject>CAD</subject><subject>Computational fluid dynamics</subject><subject>Computer aided design</subject><subject>Diffusers</subject><subject>Flanges</subject><subject>Flow control</subject><subject>Mass flow rate</subject><subject>Optimization</subject><subject>Reynolds averaged Navier-Stokes method</subject><subject>Rotors</subject><subject>Turbulence models</subject><subject>Turbulent flow</subject><subject>Wind power</subject><subject>Wind turbines</subject><issn>0094-243X</issn><issn>1551-7616</issn><fulltext>true</fulltext><rsrctype>conference_proceeding</rsrctype><creationdate>2020</creationdate><recordtype>conference_proceeding</recordtype><recordid>eNp9kE9LAzEUxIMoWKsHv0HAm7D1ZbNJ2qMU_0GhHhS8hWSTV1La3TXJKvrp3WrRm6cH837MMEPIOYMJA8mvxASgrARUB2TEhGCFkkwekhHArCrKir8ck5OU1gM0U2o6Io_LLodt-DQ5tA1tkeLGNCufKLaRuoDYJx9pbVJoVmn3_9VMv9r6JntH30PjaO6jDY1Pp-QIzSb5s_0dk-fbm6f5fbFY3j3MrxdFXcI0F1IiF6UHxQC8mEnrhEeL3kqO4JxX4GqjZKmQG1ehAIfWcRCqtjUaZvmYXPz4drF97X3Ket32sRki9dBfClVNBR-oyx8q1SF_d9RdDFsTPzQDvVtMC71f7D_4rY1_oO4c8i9spm3z</recordid><startdate>20201102</startdate><enddate>20201102</enddate><creator>Gaonkar, Ashwini Anand</creator><creator>S., Surya</creator><creator>R., Jayakrishnan</creator><general>American Institute of Physics</general><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>20201102</creationdate><title>Optimization of flanges for diffuser casings of diffuser augmented wind turbines</title><author>Gaonkar, Ashwini Anand ; S., Surya ; R., Jayakrishnan</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c208t-66f352e07100e596bd5efbfeb63f0dde70dca7627f3ad4f50dfbd3057cbcfa1b3</frbrgroupid><rsrctype>conference_proceedings</rsrctype><prefilter>conference_proceedings</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Aerodynamics</topic><topic>CAD</topic><topic>Computational fluid dynamics</topic><topic>Computer aided design</topic><topic>Diffusers</topic><topic>Flanges</topic><topic>Flow control</topic><topic>Mass flow rate</topic><topic>Optimization</topic><topic>Reynolds averaged Navier-Stokes method</topic><topic>Rotors</topic><topic>Turbulence models</topic><topic>Turbulent flow</topic><topic>Wind power</topic><topic>Wind turbines</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Gaonkar, Ashwini Anand</creatorcontrib><creatorcontrib>S., Surya</creatorcontrib><creatorcontrib>R., Jayakrishnan</creatorcontrib><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Gaonkar, Ashwini Anand</au><au>S., Surya</au><au>R., Jayakrishnan</au><au>Shivakoti, Ishwer</au><au>Kilickap, Erol</au><au>Das, Soham</au><au>Gao, Xiao-Zhi</au><au>Kundu, Tanmoy</au><au>Ghadai, Ranjan Kumar</au><au>Kalita, Kana</au><format>book</format><genre>proceeding</genre><ristype>CONF</ristype><atitle>Optimization of flanges for diffuser casings of diffuser augmented wind turbines</atitle><btitle>AIP conference proceedings</btitle><date>2020-11-02</date><risdate>2020</risdate><volume>2273</volume><issue>1</issue><issn>0094-243X</issn><eissn>1551-7616</eissn><coden>APCPCS</coden><abstract>Diffuser Augmented Wind Turbines (DAWTs) are used in harnessing of wind energy in a more efficient way compared to the conventional wind turbines. In this article, the mass flow rate through the shroud is increased by the addition of flanges at the aft of the shroud. Using Reynolds Averaged Navier Stokes Equation along with k-ω SST turbulence models, the flow properties through the diffuser is obtained. The modeling of the diffuser was done using a NACA 9415 Airfoil in CATIA and running the simulations in ANSYS FLUENT. Grid Convergence Study was done for these results prior to further analysis. The flange angle and the height along with the open-angle of the diffuser were optimized for maximum mass flow rate through the rotor plane. The performance of the diffuser has been analyzed in terms of the swallowed mass flow rate, pressure variation along the diffuser and velocity at the rotor plane.</abstract><cop>Melville</cop><pub>American Institute of Physics</pub><doi>10.1063/5.0024504</doi><tpages>6</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0094-243X |
| ispartof | AIP conference proceedings, 2020, Vol.2273 (1) |
| issn | 0094-243X 1551-7616 |
| language | eng |
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| source | AIP Journals Complete |
| subjects | Aerodynamics CAD Computational fluid dynamics Computer aided design Diffusers Flanges Flow control Mass flow rate Optimization Reynolds averaged Navier-Stokes method Rotors Turbulence models Turbulent flow Wind power Wind turbines |
| title | Optimization of flanges for diffuser casings of diffuser augmented wind turbines |
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