Matches in SemOpenAlex for { <https://semopenalex.org/work/W2519790271> ?p ?o ?g. }
Showing items 1 to 54 of
54
with 100 items per page.
- W2519790271 abstract "The skin of fast-swimming sharks is proposed to have mechanisms to reduce drag and delay flow separation. The shortfin mako Isurus oxyrinchus is one of the fastest and most agile ocean predators and would benefit from minimizing its pressure drag by controlling flow separation. The skin of shortfin makos is covered in teeth-like denticles with lengths on the order of 0.2 mm. Recent biological studies have shown the bristling angle of these denticles to exceed 50° in locations likely to experience separation first. It is proposed that the reversing flow that occurs near the onset of separation activates denticle bristling. Once activated, the scales would impede the development of a more global separation event over the shark by stopping the reversing flow from travelling further upstream and causing interactions within the boundary layer that allow it to stay attached longer. Real shark skin samples are exposed to reversing flow and the interactions with the scales are documented with a specialized camera setup. The camera setup provides high magnification while still providing a large enough depth of field to visualize scale movement. It is shown that reversing flow indeed interacts with the scales and causes bristling in flank region specimens. Because it is not possible to test at the swimming speeds of the real mako in the University of Alabama water tunnel, a biomimetic scale array model is used in the experiment to study the boundary layer, Re stress, and cavity structures over the shark skin. It is shown that the introduction of the scales in the turbulent boundary layer yields a positive benefit in the flow by brings higher momentum fluid toward the surface. An examination of the cavity structures shows cavity vortices in most cases, with the notable exception being the first cavity in the turbulent boundary layer case which shows no average core vortex and instead shows an outward trend of fluid motion toward the boundary layer above. These results indicate the possibility of shortfin mako scales to control flow separation. (Published By University of Alabama Libraries)" @default.
- W2519790271 created "2016-09-23" @default.
- W2519790271 creator A5023202895 @default.
- W2519790271 date "2015-01-01" @default.
- W2519790271 modified "2023-09-23" @default.
- W2519790271 title "An investigation of the flow control mechanisms of shortfin mako skin" @default.
- W2519790271 cites W2027829429 @default.
- W2519790271 cites W2122469780 @default.
- W2519790271 hasPublicationYear "2015" @default.
- W2519790271 type Work @default.
- W2519790271 sameAs 2519790271 @default.
- W2519790271 citedByCount "1" @default.
- W2519790271 countsByYear W25197902712017 @default.
- W2519790271 crossrefType "dissertation" @default.
- W2519790271 hasAuthorship W2519790271A5023202895 @default.
- W2519790271 hasConcept C111603439 @default.
- W2519790271 hasConcept C119857082 @default.
- W2519790271 hasConcept C121332964 @default.
- W2519790271 hasConcept C127313418 @default.
- W2519790271 hasConcept C127413603 @default.
- W2519790271 hasConcept C199104240 @default.
- W2519790271 hasConcept C2776061190 @default.
- W2519790271 hasConcept C2781085045 @default.
- W2519790271 hasConcept C38349280 @default.
- W2519790271 hasConcept C41008148 @default.
- W2519790271 hasConcept C57879066 @default.
- W2519790271 hasConcept C72921944 @default.
- W2519790271 hasConcept C77576233 @default.
- W2519790271 hasConcept C78519656 @default.
- W2519790271 hasConceptScore W2519790271C111603439 @default.
- W2519790271 hasConceptScore W2519790271C119857082 @default.
- W2519790271 hasConceptScore W2519790271C121332964 @default.
- W2519790271 hasConceptScore W2519790271C127313418 @default.
- W2519790271 hasConceptScore W2519790271C127413603 @default.
- W2519790271 hasConceptScore W2519790271C199104240 @default.
- W2519790271 hasConceptScore W2519790271C2776061190 @default.
- W2519790271 hasConceptScore W2519790271C2781085045 @default.
- W2519790271 hasConceptScore W2519790271C38349280 @default.
- W2519790271 hasConceptScore W2519790271C41008148 @default.
- W2519790271 hasConceptScore W2519790271C57879066 @default.
- W2519790271 hasConceptScore W2519790271C72921944 @default.
- W2519790271 hasConceptScore W2519790271C77576233 @default.
- W2519790271 hasConceptScore W2519790271C78519656 @default.
- W2519790271 hasLocation W25197902711 @default.
- W2519790271 hasOpenAccess W2519790271 @default.
- W2519790271 hasPrimaryLocation W25197902711 @default.
- W2519790271 hasRelatedWork W1640599085 @default.
- W2519790271 hasRelatedWork W2069376151 @default.
- W2519790271 hasRelatedWork W2118711679 @default.
- W2519790271 hasRelatedWork W3096654931 @default.
- W2519790271 isParatext "false" @default.
- W2519790271 isRetracted "false" @default.
- W2519790271 magId "2519790271" @default.
- W2519790271 workType "dissertation" @default.