Effects of dynamical chordwise retracting and stretching on the propulsive performance of a pure plunging flat plate
An innovative morphing scheme, i.e., dynamical chordwise retracting and stretching, has been proposed for flapping wings. Its aerodynamic effects have been investigated based on a plunging two-dimensional flat wing. The conclusive results suggest that the novel morphing scheme can help to enhance th...
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description | An innovative morphing scheme, i.e., dynamical chordwise retracting and stretching, has been proposed for flapping wings. Its aerodynamic effects have been investigated based on a plunging two-dimensional flat wing. The conclusive results suggest that the novel morphing scheme can help to enhance the power utilization efficiency of flapping wings in forward motions. Plunging wings equipped with the novel morphing scheme can generate more thrust for a given power consumption or consume less power for a given thrust generation compared with their non-morphing counterparts. Moreover, the morphing scheme tends to function more positively as the defined morphing amplitude increases. In the currently covered parameter spaces, the largest peak propulsive efficiency improvements induced by the morphing scheme are 12.3% at Re = 15 × 104 and 10.8% at Re = 5 × 104, respectively. Examination of the flow structures around the plunging wings reveals that dynamical chordwise retracting and stretching of the wing can ameliorate the vortex distribution, which could account for the propulsive property changes caused by the morphing scheme. The current study may have yielded an inspiring and prospective scheme for enhancing the propulsive capacity of micro-flapping-wing aerial and underwater robots. |
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Its aerodynamic effects have been investigated based on a plunging two-dimensional flat wing. The conclusive results suggest that the novel morphing scheme can help to enhance the power utilization efficiency of flapping wings in forward motions. Plunging wings equipped with the novel morphing scheme can generate more thrust for a given power consumption or consume less power for a given thrust generation compared with their non-morphing counterparts. Moreover, the morphing scheme tends to function more positively as the defined morphing amplitude increases. In the currently covered parameter spaces, the largest peak propulsive efficiency improvements induced by the morphing scheme are 12.3% at Re = 15 × 104 and 10.8% at Re = 5 × 104, respectively. Examination of the flow structures around the plunging wings reveals that dynamical chordwise retracting and stretching of the wing can ameliorate the vortex distribution, which could account for the propulsive property changes caused by the morphing scheme. The current study may have yielded an inspiring and prospective scheme for enhancing the propulsive capacity of micro-flapping-wing aerial and underwater robots.</description><identifier>ISSN: 2158-3226</identifier><identifier>EISSN: 2158-3226</identifier><identifier>DOI: 10.1063/5.0136580</identifier><identifier>CODEN: AAIDBI</identifier><language>eng</language><publisher>Melville: American Institute of Physics</publisher><subject>Flapping wings ; Flat plates ; Morphing ; Power consumption ; Propulsive efficiency ; Stretching ; Underwater robots</subject><ispartof>AIP advances, 2023-02, Vol.13 (2), p.025347-025347-15</ispartof><rights>Author(s)</rights><rights>2023 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c323t-531eea0042b67ccdcfe528bb8a9dab5064cd3e40b2aab68643dfd63ed3291db93</citedby><cites>FETCH-LOGICAL-c323t-531eea0042b67ccdcfe528bb8a9dab5064cd3e40b2aab68643dfd63ed3291db93</cites><orcidid>0000-0001-5725-9724 ; 0000-0001-6364-6499</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,860,2096,27901,27902</link.rule.ids></links><search><creatorcontrib>Liu, Kang</creatorcontrib><creatorcontrib>Song, Bifeng</creatorcontrib><creatorcontrib>Wang, Zhihe</creatorcontrib><creatorcontrib>Chen, Ang</creatorcontrib><creatorcontrib>Xue, Dong</creatorcontrib><title>Effects of dynamical chordwise retracting and stretching on the propulsive performance of a pure plunging flat plate</title><title>AIP advances</title><description>An innovative morphing scheme, i.e., dynamical chordwise retracting and stretching, has been proposed for flapping wings. Its aerodynamic effects have been investigated based on a plunging two-dimensional flat wing. The conclusive results suggest that the novel morphing scheme can help to enhance the power utilization efficiency of flapping wings in forward motions. Plunging wings equipped with the novel morphing scheme can generate more thrust for a given power consumption or consume less power for a given thrust generation compared with their non-morphing counterparts. Moreover, the morphing scheme tends to function more positively as the defined morphing amplitude increases. In the currently covered parameter spaces, the largest peak propulsive efficiency improvements induced by the morphing scheme are 12.3% at Re = 15 × 104 and 10.8% at Re = 5 × 104, respectively. Examination of the flow structures around the plunging wings reveals that dynamical chordwise retracting and stretching of the wing can ameliorate the vortex distribution, which could account for the propulsive property changes caused by the morphing scheme. The current study may have yielded an inspiring and prospective scheme for enhancing the propulsive capacity of micro-flapping-wing aerial and underwater robots.</description><subject>Flapping wings</subject><subject>Flat plates</subject><subject>Morphing</subject><subject>Power consumption</subject><subject>Propulsive efficiency</subject><subject>Stretching</subject><subject>Underwater robots</subject><issn>2158-3226</issn><issn>2158-3226</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><sourceid>DOA</sourceid><recordid>eNp9UU1LJDEQbWQFRT34DwKedmE0H51093ERVwXBi55DJanMZOjpzCbpXfz3m3ZE9mRdqurx6r0qqmkuGb1mVIkbeU2ZULKnR80pZ7JfCc7Vt__qk-Yi5y2t0Q6M9u1pU-68R1syiZ64twl2wcJI7CYm9zdkJAlLAlvCtCYwOZJLBexmaeNEygbJPsX9PObwp5aYfEw7mCwuckD2c6roOE_rZcCPUGoHBc-bYw9jxouPfNa8_rp7uX1YPT3fP97-fFpZwUVZScEQoe7Kjeqsddaj5L0xPQwOjKSqtU5gSw0HMKpXrXDeKYFO8IE5M4iz5vGg6yJs9T6FHaQ3HSHodyCmtYZUgh1RG-yFbaUYeGdaP6jBt9xa30lUXjBGq9bVQase_HvGXPQ2zmmq62vedZKxrqOL4_cDy6aYc0L_6cqoXn6kpf74UeX-OHCzDQVKiNMX5H8pQJJA</recordid><startdate>20230201</startdate><enddate>20230201</enddate><creator>Liu, Kang</creator><creator>Song, Bifeng</creator><creator>Wang, Zhihe</creator><creator>Chen, Ang</creator><creator>Xue, Dong</creator><general>American Institute of Physics</general><general>AIP Publishing LLC</general><scope>AJDQP</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><scope>DOA</scope><orcidid>https://orcid.org/0000-0001-5725-9724</orcidid><orcidid>https://orcid.org/0000-0001-6364-6499</orcidid></search><sort><creationdate>20230201</creationdate><title>Effects of dynamical chordwise retracting and stretching on the propulsive performance of a pure plunging flat plate</title><author>Liu, Kang ; Song, Bifeng ; Wang, Zhihe ; Chen, Ang ; Xue, Dong</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c323t-531eea0042b67ccdcfe528bb8a9dab5064cd3e40b2aab68643dfd63ed3291db93</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Flapping wings</topic><topic>Flat plates</topic><topic>Morphing</topic><topic>Power consumption</topic><topic>Propulsive efficiency</topic><topic>Stretching</topic><topic>Underwater robots</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Liu, Kang</creatorcontrib><creatorcontrib>Song, Bifeng</creatorcontrib><creatorcontrib>Wang, Zhihe</creatorcontrib><creatorcontrib>Chen, Ang</creatorcontrib><creatorcontrib>Xue, Dong</creatorcontrib><collection>AIP Open Access Journals</collection><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Directory of Open Access Journals</collection><jtitle>AIP advances</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Liu, Kang</au><au>Song, Bifeng</au><au>Wang, Zhihe</au><au>Chen, Ang</au><au>Xue, Dong</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effects of dynamical chordwise retracting and stretching on the propulsive performance of a pure plunging flat plate</atitle><jtitle>AIP advances</jtitle><date>2023-02-01</date><risdate>2023</risdate><volume>13</volume><issue>2</issue><spage>025347</spage><epage>025347-15</epage><pages>025347-025347-15</pages><issn>2158-3226</issn><eissn>2158-3226</eissn><coden>AAIDBI</coden><abstract>An innovative morphing scheme, i.e., dynamical chordwise retracting and stretching, has been proposed for flapping wings. Its aerodynamic effects have been investigated based on a plunging two-dimensional flat wing. The conclusive results suggest that the novel morphing scheme can help to enhance the power utilization efficiency of flapping wings in forward motions. Plunging wings equipped with the novel morphing scheme can generate more thrust for a given power consumption or consume less power for a given thrust generation compared with their non-morphing counterparts. Moreover, the morphing scheme tends to function more positively as the defined morphing amplitude increases. In the currently covered parameter spaces, the largest peak propulsive efficiency improvements induced by the morphing scheme are 12.3% at Re = 15 × 104 and 10.8% at Re = 5 × 104, respectively. Examination of the flow structures around the plunging wings reveals that dynamical chordwise retracting and stretching of the wing can ameliorate the vortex distribution, which could account for the propulsive property changes caused by the morphing scheme. The current study may have yielded an inspiring and prospective scheme for enhancing the propulsive capacity of micro-flapping-wing aerial and underwater robots.</abstract><cop>Melville</cop><pub>American Institute of Physics</pub><doi>10.1063/5.0136580</doi><tpages>15</tpages><orcidid>https://orcid.org/0000-0001-5725-9724</orcidid><orcidid>https://orcid.org/0000-0001-6364-6499</orcidid><oa>free_for_read</oa></addata></record> |
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subjects | Flapping wings Flat plates Morphing Power consumption Propulsive efficiency Stretching Underwater robots |
title | Effects of dynamical chordwise retracting and stretching on the propulsive performance of a pure plunging flat plate |
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