Computational investigation of cicada aerodynamics in forward flight
Free forward flight of cicadas is investigated through high-speed photogrammetry, three-dimensional surface reconstruction and computational fluid dynamics simulations. We report two new vortices generated by the cicada's wide body. One is the thorax-generated vortex, which helps the downwash f...
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| Veröffentlicht in: | Journal of the Royal Society interface 2015-01, Vol.12 (102), p.20141116-20141116 |
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| container_end_page | 20141116 |
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| container_issue | 102 |
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| container_title | Journal of the Royal Society interface |
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| creator | Wan, Hui Dong, Haibo Gai, Kuo |
| description | Free forward flight of cicadas is investigated through high-speed photogrammetry, three-dimensional surface reconstruction and computational fluid dynamics simulations. We report two new vortices generated by the cicada's wide body. One is the thorax-generated vortex, which helps the downwash flow, indicating a new phenomenon of lift enhancement. Another is the cicada posterior body vortex, which entangles with the vortex ring composed of wing tip, trailing edge and wing root vortices. Some other vortex features include: independently developed left- and right-hand side leading edge vortex (LEV), dual-core LEV structure at the mid-wing region and near-wake two-vortex-ring structure. In the cicada forward flight, approximately 79% of the total lift is generated during the downstroke. Cicada wings experience drag in the downstroke, and generate thrust during the upstroke. Energetics study shows that the cicada in free forward flight consumes much more power in the downstroke than in the upstroke, to provide enough lift to support the weight and to overcome drag to move forward. |
| doi_str_mv | 10.1098/rsif.2014.1116 |
| format | Article |
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We report two new vortices generated by the cicada's wide body. One is the thorax-generated vortex, which helps the downwash flow, indicating a new phenomenon of lift enhancement. Another is the cicada posterior body vortex, which entangles with the vortex ring composed of wing tip, trailing edge and wing root vortices. Some other vortex features include: independently developed left- and right-hand side leading edge vortex (LEV), dual-core LEV structure at the mid-wing region and near-wake two-vortex-ring structure. In the cicada forward flight, approximately 79% of the total lift is generated during the downstroke. Cicada wings experience drag in the downstroke, and generate thrust during the upstroke. 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All rights reserved. 2014</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c5446-955290f5d234a34815e0b3a24e915a4c883c45b8f7ae697565800d39e2f9ab423</citedby><cites>FETCH-LOGICAL-c5446-955290f5d234a34815e0b3a24e915a4c883c45b8f7ae697565800d39e2f9ab423</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4277108/pdf/$$EPDF$$P50$$Gpubmedcentral$$H</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4277108/$$EHTML$$P50$$Gpubmedcentral$$H</linktohtml><link.rule.ids>230,314,723,776,780,881,27901,27902,53766,53768</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/25551136$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Wan, Hui</creatorcontrib><creatorcontrib>Dong, Haibo</creatorcontrib><creatorcontrib>Gai, Kuo</creatorcontrib><title>Computational investigation of cicada aerodynamics in forward flight</title><title>Journal of the Royal Society interface</title><addtitle>J. R. Soc. Interface</addtitle><addtitle>J R Soc Interface</addtitle><description>Free forward flight of cicadas is investigated through high-speed photogrammetry, three-dimensional surface reconstruction and computational fluid dynamics simulations. We report two new vortices generated by the cicada's wide body. One is the thorax-generated vortex, which helps the downwash flow, indicating a new phenomenon of lift enhancement. Another is the cicada posterior body vortex, which entangles with the vortex ring composed of wing tip, trailing edge and wing root vortices. Some other vortex features include: independently developed left- and right-hand side leading edge vortex (LEV), dual-core LEV structure at the mid-wing region and near-wake two-vortex-ring structure. In the cicada forward flight, approximately 79% of the total lift is generated during the downstroke. Cicada wings experience drag in the downstroke, and generate thrust during the upstroke. Energetics study shows that the cicada in free forward flight consumes much more power in the downstroke than in the upstroke, to provide enough lift to support the weight and to overcome drag to move forward.</description><subject>Animals</subject><subject>Biomechanical Phenomena</subject><subject>Computer Simulation</subject><subject>Drosophila melanogaster</subject><subject>Flight, Animal</subject><subject>Hemiptera - physiology</subject><subject>Hydrodynamics</subject><subject>Imaging, Three-Dimensional</subject><subject>Insect Aerodynamics</subject><subject>Insect Free Flight</subject><subject>Low Reynolds Number Flow</subject><subject>Stress, Mechanical</subject><subject>Surface Properties</subject><subject>Temperature</subject><subject>Wings, Animal - physiology</subject><issn>1742-5689</issn><issn>1742-5662</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkUtrGzEUhUVoaR7tNssyy27s6Oo10qZQnCcECn2shayRHIWZkSvNOLi_vpo4MU2h7UpX3O8e6Z6D0CngOWAlz1IOfk4wsDkAiAN0BDUjMy4EebWvpTpExznfY0xryvkbdEg45wBUHKHzRezW42CGEHvTVqHfuDyE1eO9ir6ywZrGVMal2Gx70wWbC1T5mB5MairfhtXd8Ba99qbN7t3TeYK-X158W1zPbj9f3Sw-3c4sZ0zMFOdEYc8bQpmhTAJ3eEkNYU4BN8xKSS3jS-lr44SqueAS44YqR7wyS0boCfq4012Py8411vVDMq1ep9CZtNXRBP2y04c7vYobzUhdA5ZF4MOTQIo_xrKp7kK2rm1N7-KYNUgAVVwi5P-oYMCKj0oVdL5DbYo5J-f3PwKsp5T0lJKeUtJTSmXg_e977PHnWApAd0CK22JotMENW30fx1RCyn-XXf1r6svXm8sNkACY6OIF4JoJVuufYb0TAqJDzqPTE_BS-s-XfgG3s8FL</recordid><startdate>20150106</startdate><enddate>20150106</enddate><creator>Wan, Hui</creator><creator>Dong, Haibo</creator><creator>Gai, Kuo</creator><general>The Royal Society</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>7SS</scope><scope>5PM</scope></search><sort><creationdate>20150106</creationdate><title>Computational investigation of cicada aerodynamics in forward flight</title><author>Wan, Hui ; Dong, Haibo ; Gai, Kuo</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c5446-955290f5d234a34815e0b3a24e915a4c883c45b8f7ae697565800d39e2f9ab423</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Animals</topic><topic>Biomechanical Phenomena</topic><topic>Computer Simulation</topic><topic>Drosophila melanogaster</topic><topic>Flight, Animal</topic><topic>Hemiptera - physiology</topic><topic>Hydrodynamics</topic><topic>Imaging, Three-Dimensional</topic><topic>Insect Aerodynamics</topic><topic>Insect Free Flight</topic><topic>Low Reynolds Number Flow</topic><topic>Stress, Mechanical</topic><topic>Surface Properties</topic><topic>Temperature</topic><topic>Wings, Animal - physiology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wan, Hui</creatorcontrib><creatorcontrib>Dong, Haibo</creatorcontrib><creatorcontrib>Gai, Kuo</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>Entomology Abstracts (Full archive)</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Journal of the Royal Society interface</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wan, Hui</au><au>Dong, Haibo</au><au>Gai, Kuo</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Computational investigation of cicada aerodynamics in forward flight</atitle><jtitle>Journal of the Royal Society interface</jtitle><stitle>J. R. Soc. Interface</stitle><addtitle>J R Soc Interface</addtitle><date>2015-01-06</date><risdate>2015</risdate><volume>12</volume><issue>102</issue><spage>20141116</spage><epage>20141116</epage><pages>20141116-20141116</pages><issn>1742-5689</issn><eissn>1742-5662</eissn><abstract>Free forward flight of cicadas is investigated through high-speed photogrammetry, three-dimensional surface reconstruction and computational fluid dynamics simulations. We report two new vortices generated by the cicada's wide body. One is the thorax-generated vortex, which helps the downwash flow, indicating a new phenomenon of lift enhancement. Another is the cicada posterior body vortex, which entangles with the vortex ring composed of wing tip, trailing edge and wing root vortices. Some other vortex features include: independently developed left- and right-hand side leading edge vortex (LEV), dual-core LEV structure at the mid-wing region and near-wake two-vortex-ring structure. In the cicada forward flight, approximately 79% of the total lift is generated during the downstroke. Cicada wings experience drag in the downstroke, and generate thrust during the upstroke. Energetics study shows that the cicada in free forward flight consumes much more power in the downstroke than in the upstroke, to provide enough lift to support the weight and to overcome drag to move forward.</abstract><cop>England</cop><pub>The Royal Society</pub><pmid>25551136</pmid><doi>10.1098/rsif.2014.1116</doi><tpages>1</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Journal of the Royal Society interface, 2015-01, Vol.12 (102), p.20141116-20141116 |
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| language | eng |
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| subjects | Animals Biomechanical Phenomena Computer Simulation Drosophila melanogaster Flight, Animal Hemiptera - physiology Hydrodynamics Imaging, Three-Dimensional Insect Aerodynamics Insect Free Flight Low Reynolds Number Flow Stress, Mechanical Surface Properties Temperature Wings, Animal - physiology |
| title | Computational investigation of cicada aerodynamics in forward flight |
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