Aerodynamic analysis of a stator‐augmented linear cascade wind turbine
This study proposes to attach stator vanes to PowerWindow, a linear cascade wind turbine, to improve the flow direction in the device. By controlling the angle of attack, the stator vanes increase the acting force and decrease the undesirable force on PowerWindow blades. An analytical model using bl...
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| Veröffentlicht in: | Wind energy (Chichester, England) England), 2019-08, Vol.22 (8), p.1148-1163 |
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| container_title | Wind energy (Chichester, England) |
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| creator | Jafari, Seyed Amir Hosein Kwok, Kenny C.S. Safaei, Farzad Kosasih, Buyung Zhao, Ming |
| description | This study proposes to attach stator vanes to PowerWindow, a linear cascade wind turbine, to improve the flow direction in the device. By controlling the angle of attack, the stator vanes increase the acting force and decrease the undesirable force on PowerWindow blades. An analytical model using blade element momentum theory is developed for the new configuration, referred to as stator‐augmented PowerWindow. The analytical model has been verified by a computational fluid dynamic simulation. This study shows that the stator vanes are able to minimize/neutralize the undesirable axial force on PowerWindow so that the thrust coefficient decreases from 0.035 in the original model to −0.005 in the stator‐augmented one. In addition, by increasing the acting force on the blades, the stator augmentation will simultaneously enhance the coefficient of performance by up to 10%. This study also shows that by using stator vanes to control the angle of attack, unlike in the original PowerWindow, the direction of rotation of the stator‐augmented PowerWindow will remain the same regardless of the wind direction, increasing the utility of the device in practice. |
| doi_str_mv | 10.1002/we.2346 |
| format | Article |
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By controlling the angle of attack, the stator vanes increase the acting force and decrease the undesirable force on PowerWindow blades. An analytical model using blade element momentum theory is developed for the new configuration, referred to as stator‐augmented PowerWindow. The analytical model has been verified by a computational fluid dynamic simulation. This study shows that the stator vanes are able to minimize/neutralize the undesirable axial force on PowerWindow so that the thrust coefficient decreases from 0.035 in the original model to −0.005 in the stator‐augmented one. In addition, by increasing the acting force on the blades, the stator augmentation will simultaneously enhance the coefficient of performance by up to 10%. This study also shows that by using stator vanes to control the angle of attack, unlike in the original PowerWindow, the direction of rotation of the stator‐augmented PowerWindow will remain the same regardless of the wind direction, increasing the utility of the device in practice.</description><identifier>ISSN: 1095-4244</identifier><identifier>EISSN: 1099-1824</identifier><identifier>DOI: 10.1002/we.2346</identifier><language>eng</language><publisher>Bognor Regis: John Wiley & Sons, Inc</publisher><subject>Angle of attack ; Axial forces ; blade element momentum theory ; coefficient of performance ; computational fluid dynamics ; Computer applications ; Computer simulation ; linear cascade ; Mathematical models ; Momentum theory ; PowerWindow ; stator vanes ; Stators ; Turbine blades ; Turbines ; Vanes ; Wind direction ; Wind power ; wind turbine ; Wind turbines</subject><ispartof>Wind energy (Chichester, England), 2019-08, Vol.22 (8), p.1148-1163</ispartof><rights>2019 John Wiley & Sons, Ltd.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3226-d7da62e1882104332a573e9cabc1e81ac01a0b088e43163f40a2af2b51f564ba3</citedby><cites>FETCH-LOGICAL-c3226-d7da62e1882104332a573e9cabc1e81ac01a0b088e43163f40a2af2b51f564ba3</cites><orcidid>0000-0003-0627-0784</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fwe.2346$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fwe.2346$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1416,27923,27924,45573,45574</link.rule.ids></links><search><creatorcontrib>Jafari, Seyed Amir Hosein</creatorcontrib><creatorcontrib>Kwok, Kenny C.S.</creatorcontrib><creatorcontrib>Safaei, Farzad</creatorcontrib><creatorcontrib>Kosasih, Buyung</creatorcontrib><creatorcontrib>Zhao, Ming</creatorcontrib><title>Aerodynamic analysis of a stator‐augmented linear cascade wind turbine</title><title>Wind energy (Chichester, England)</title><description>This study proposes to attach stator vanes to PowerWindow, a linear cascade wind turbine, to improve the flow direction in the device. By controlling the angle of attack, the stator vanes increase the acting force and decrease the undesirable force on PowerWindow blades. An analytical model using blade element momentum theory is developed for the new configuration, referred to as stator‐augmented PowerWindow. The analytical model has been verified by a computational fluid dynamic simulation. This study shows that the stator vanes are able to minimize/neutralize the undesirable axial force on PowerWindow so that the thrust coefficient decreases from 0.035 in the original model to −0.005 in the stator‐augmented one. In addition, by increasing the acting force on the blades, the stator augmentation will simultaneously enhance the coefficient of performance by up to 10%. This study also shows that by using stator vanes to control the angle of attack, unlike in the original PowerWindow, the direction of rotation of the stator‐augmented PowerWindow will remain the same regardless of the wind direction, increasing the utility of the device in practice.</description><subject>Angle of attack</subject><subject>Axial forces</subject><subject>blade element momentum theory</subject><subject>coefficient of performance</subject><subject>computational fluid dynamics</subject><subject>Computer applications</subject><subject>Computer simulation</subject><subject>linear cascade</subject><subject>Mathematical models</subject><subject>Momentum theory</subject><subject>PowerWindow</subject><subject>stator vanes</subject><subject>Stators</subject><subject>Turbine blades</subject><subject>Turbines</subject><subject>Vanes</subject><subject>Wind direction</subject><subject>Wind power</subject><subject>wind turbine</subject><subject>Wind turbines</subject><issn>1095-4244</issn><issn>1099-1824</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNp10MFKw0AQBuBFFKxVfIUFDx4kdWd3k26PpbRWKHhRPC6TzURS0qTuJoTcfASf0Scxbb16mmH4-Bl-xm5BTEAI-djRRCqdnLERiNksAiP1-XGPIy21vmRXIWyFAAFgRmw9J19nfYW7wnGssOxDEXidc-Shwab2P1_f2H7sqGoo42VREXruMDjMiHdFlfGm9elwvmYXOZaBbv7mmL2tlq-LdbR5eXpezDeRU1ImUTbNMJEExkgQWimJ8VTRzGHqgAygE4AiFcaQVpCoXAuUmMs0hjxOdIpqzO5OuXtff7YUGrutWz88HqyUsUqmSoAc1P1JOV-H4Cm3e1_s0PcWhD3UZDuyh5oG-XCSXVFS_x-z78uj_gUFVGf6</recordid><startdate>201908</startdate><enddate>201908</enddate><creator>Jafari, Seyed Amir Hosein</creator><creator>Kwok, Kenny C.S.</creator><creator>Safaei, Farzad</creator><creator>Kosasih, Buyung</creator><creator>Zhao, Ming</creator><general>John Wiley & Sons, Inc</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7ST</scope><scope>C1K</scope><scope>SOI</scope><orcidid>https://orcid.org/0000-0003-0627-0784</orcidid></search><sort><creationdate>201908</creationdate><title>Aerodynamic analysis of a stator‐augmented linear cascade wind turbine</title><author>Jafari, Seyed Amir Hosein ; Kwok, Kenny C.S. ; Safaei, Farzad ; Kosasih, Buyung ; Zhao, Ming</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3226-d7da62e1882104332a573e9cabc1e81ac01a0b088e43163f40a2af2b51f564ba3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Angle of attack</topic><topic>Axial forces</topic><topic>blade element momentum theory</topic><topic>coefficient of performance</topic><topic>computational fluid dynamics</topic><topic>Computer applications</topic><topic>Computer simulation</topic><topic>linear cascade</topic><topic>Mathematical models</topic><topic>Momentum theory</topic><topic>PowerWindow</topic><topic>stator vanes</topic><topic>Stators</topic><topic>Turbine blades</topic><topic>Turbines</topic><topic>Vanes</topic><topic>Wind direction</topic><topic>Wind power</topic><topic>wind turbine</topic><topic>Wind turbines</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Jafari, Seyed Amir Hosein</creatorcontrib><creatorcontrib>Kwok, Kenny C.S.</creatorcontrib><creatorcontrib>Safaei, Farzad</creatorcontrib><creatorcontrib>Kosasih, Buyung</creatorcontrib><creatorcontrib>Zhao, Ming</creatorcontrib><collection>CrossRef</collection><collection>Environment Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Environment Abstracts</collection><jtitle>Wind energy (Chichester, England)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Jafari, Seyed Amir Hosein</au><au>Kwok, Kenny C.S.</au><au>Safaei, Farzad</au><au>Kosasih, Buyung</au><au>Zhao, Ming</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Aerodynamic analysis of a stator‐augmented linear cascade wind turbine</atitle><jtitle>Wind energy (Chichester, England)</jtitle><date>2019-08</date><risdate>2019</risdate><volume>22</volume><issue>8</issue><spage>1148</spage><epage>1163</epage><pages>1148-1163</pages><issn>1095-4244</issn><eissn>1099-1824</eissn><abstract>This study proposes to attach stator vanes to PowerWindow, a linear cascade wind turbine, to improve the flow direction in the device. By controlling the angle of attack, the stator vanes increase the acting force and decrease the undesirable force on PowerWindow blades. An analytical model using blade element momentum theory is developed for the new configuration, referred to as stator‐augmented PowerWindow. The analytical model has been verified by a computational fluid dynamic simulation. This study shows that the stator vanes are able to minimize/neutralize the undesirable axial force on PowerWindow so that the thrust coefficient decreases from 0.035 in the original model to −0.005 in the stator‐augmented one. In addition, by increasing the acting force on the blades, the stator augmentation will simultaneously enhance the coefficient of performance by up to 10%. This study also shows that by using stator vanes to control the angle of attack, unlike in the original PowerWindow, the direction of rotation of the stator‐augmented PowerWindow will remain the same regardless of the wind direction, increasing the utility of the device in practice.</abstract><cop>Bognor Regis</cop><pub>John Wiley & Sons, Inc</pub><doi>10.1002/we.2346</doi><tpages>16</tpages><orcidid>https://orcid.org/0000-0003-0627-0784</orcidid><oa>free_for_read</oa></addata></record> |
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| ispartof | Wind energy (Chichester, England), 2019-08, Vol.22 (8), p.1148-1163 |
| issn | 1095-4244 1099-1824 |
| language | eng |
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| source | Wiley Online Library All Journals |
| subjects | Angle of attack Axial forces blade element momentum theory coefficient of performance computational fluid dynamics Computer applications Computer simulation linear cascade Mathematical models Momentum theory PowerWindow stator vanes Stators Turbine blades Turbines Vanes Wind direction Wind power wind turbine Wind turbines |
| title | Aerodynamic analysis of a stator‐augmented linear cascade wind turbine |
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