Matches in SemOpenAlex for { <https://semopenalex.org/work/W3175164087> ?p ?o ?g. }
Showing items 1 to 88 of
88
with 100 items per page.
- W3175164087 endingPage "10" @default.
- W3175164087 startingPage "1" @default.
- W3175164087 abstract "This study explores the benefits of rotor chord extension in stall-dominant conditions. Simulations are based on a UH-60A Blackhawk helicopter with an effective chord increase of 20% realized by extending a trailing-edge plate (TEP) through a slit in the trailing edge between 63% and 83% blade span. Since TEP extension changes the baseline SC-1094R8 airfoil profile, two-dimensional aerodynamic coefficients of the modified profile from Navier–Stokes computational fluid dynamics calculations are used, coupled with 12 × 12 dynamic inflow and the Leishman–Beddoes dynamic stall model in the Rotorcraft Comprehensive Analysis System. While a fixed 20% larger chord produces comparable advantages to TEP extension in stall-dominant conditions, the rotor power requirements increase by up to nearly 4% for low gross weight, low-altitude operations, a penalty easily avoided with TEP retracted. From the simulations in the study, reductions of up to nearly 18% in rotor power requirements were observed with TEP for operation at high gross weight and altitude. Furthermore, increases of around 18 kt in maximum speed, 1500 lb in maximum gross weight capability, and 1800 ftin maximum altitude were observed. TEP extension generally reduces maximum angles of attack on the retreating side and weakens stall. Lift generally increases over the annulus where the TEP is present but reduces over the outer rim because the nose-down pitching moments produce larger nose-down elastic tip twist. With TEP extension, the offloading of the outer rim reduces drag, rotor torque, and power." @default.
- W3175164087 created "2021-07-05" @default.
- W3175164087 creator A5034497705 @default.
- W3175164087 creator A5056620525 @default.
- W3175164087 date "2014-01-01" @default.
- W3175164087 modified "2023-10-16" @default.
- W3175164087 title "Extendable Chord Rotors for Helicopter Envelope Expansion and Performance Improvement" @default.
- W3175164087 doi "https://doi.org/10.4050/jahs.59.012007" @default.
- W3175164087 hasPublicationYear "2014" @default.
- W3175164087 type Work @default.
- W3175164087 sameAs 3175164087 @default.
- W3175164087 citedByCount "22" @default.
- W3175164087 countsByYear W31751640872014 @default.
- W3175164087 countsByYear W31751640872015 @default.
- W3175164087 countsByYear W31751640872017 @default.
- W3175164087 countsByYear W31751640872018 @default.
- W3175164087 countsByYear W31751640872020 @default.
- W3175164087 countsByYear W31751640872021 @default.
- W3175164087 countsByYear W31751640872022 @default.
- W3175164087 countsByYear W31751640872023 @default.
- W3175164087 crossrefType "journal-article" @default.
- W3175164087 hasAuthorship W3175164087A5034497705 @default.
- W3175164087 hasAuthorship W3175164087A5056620525 @default.
- W3175164087 hasConcept C112124176 @default.
- W3175164087 hasConcept C120314980 @default.
- W3175164087 hasConcept C121332964 @default.
- W3175164087 hasConcept C127413603 @default.
- W3175164087 hasConcept C13393347 @default.
- W3175164087 hasConcept C146978453 @default.
- W3175164087 hasConcept C154945302 @default.
- W3175164087 hasConcept C192562407 @default.
- W3175164087 hasConcept C194147245 @default.
- W3175164087 hasConcept C2775924081 @default.
- W3175164087 hasConcept C2779570065 @default.
- W3175164087 hasConcept C28317120 @default.
- W3175164087 hasConcept C33923547 @default.
- W3175164087 hasConcept C41008148 @default.
- W3175164087 hasConcept C46820840 @default.
- W3175164087 hasConcept C47446073 @default.
- W3175164087 hasConcept C527307 @default.
- W3175164087 hasConcept C57879066 @default.
- W3175164087 hasConcept C5804382 @default.
- W3175164087 hasConcept C66938386 @default.
- W3175164087 hasConcept C72921944 @default.
- W3175164087 hasConcept C97257150 @default.
- W3175164087 hasConceptScore W3175164087C112124176 @default.
- W3175164087 hasConceptScore W3175164087C120314980 @default.
- W3175164087 hasConceptScore W3175164087C121332964 @default.
- W3175164087 hasConceptScore W3175164087C127413603 @default.
- W3175164087 hasConceptScore W3175164087C13393347 @default.
- W3175164087 hasConceptScore W3175164087C146978453 @default.
- W3175164087 hasConceptScore W3175164087C154945302 @default.
- W3175164087 hasConceptScore W3175164087C192562407 @default.
- W3175164087 hasConceptScore W3175164087C194147245 @default.
- W3175164087 hasConceptScore W3175164087C2775924081 @default.
- W3175164087 hasConceptScore W3175164087C2779570065 @default.
- W3175164087 hasConceptScore W3175164087C28317120 @default.
- W3175164087 hasConceptScore W3175164087C33923547 @default.
- W3175164087 hasConceptScore W3175164087C41008148 @default.
- W3175164087 hasConceptScore W3175164087C46820840 @default.
- W3175164087 hasConceptScore W3175164087C47446073 @default.
- W3175164087 hasConceptScore W3175164087C527307 @default.
- W3175164087 hasConceptScore W3175164087C57879066 @default.
- W3175164087 hasConceptScore W3175164087C5804382 @default.
- W3175164087 hasConceptScore W3175164087C66938386 @default.
- W3175164087 hasConceptScore W3175164087C72921944 @default.
- W3175164087 hasConceptScore W3175164087C97257150 @default.
- W3175164087 hasIssue "1" @default.
- W3175164087 hasLocation W31751640871 @default.
- W3175164087 hasOpenAccess W3175164087 @default.
- W3175164087 hasPrimaryLocation W31751640871 @default.
- W3175164087 hasRelatedWork W180317669 @default.
- W3175164087 hasRelatedWork W2087512292 @default.
- W3175164087 hasRelatedWork W2333888770 @default.
- W3175164087 hasRelatedWork W2484861195 @default.
- W3175164087 hasRelatedWork W264165160 @default.
- W3175164087 hasRelatedWork W270324456 @default.
- W3175164087 hasRelatedWork W3001731235 @default.
- W3175164087 hasRelatedWork W3126813389 @default.
- W3175164087 hasRelatedWork W4238804506 @default.
- W3175164087 hasRelatedWork W573739979 @default.
- W3175164087 hasVolume "59" @default.
- W3175164087 isParatext "false" @default.
- W3175164087 isRetracted "false" @default.
- W3175164087 magId "3175164087" @default.
- W3175164087 workType "article" @default.