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Minimum Induced Power for a Helicopt...

ProQuest Information and Learning Co.

Minimum Induced Power for a Helicopter in High-Speed Forward Flight.

Record Type:	Language materials, manuscript : Monograph/item
Title/Author:	Minimum Induced Power for a Helicopter in High-Speed Forward Flight./
Author:	Hong, JunSoo (Sean).
Description:	1 online resource (92 pages)
Notes:	Source: Dissertation Abstracts International, Volume: 79-02(E), Section: B.
Subject:	Mechanical engineering. -
Online resource:	click for full text (PQDT)
ISBN:	9780355229202

Minimum Induced Power for a Helicopter in High-Speed Forward Flight.
Hong, JunSoo (Sean).

Minimum Induced Power for a Helicopter in High-Speed Forward Flight. - 1 online resource (92 pages)

Source: Dissertation Abstracts International, Volume: 79-02(E), Section: B.

Thesis (Ph.D.)--Washington University in St. Louis, 2017.

Includes bibliographical references

A dynamic inflow model is used to calculate minimum induced power for a helicopter in high-speed forward flight with infinite and finite number of blades. Comparisons between analytical and numerical results are shown and they show good agreement. Different flow conditions (such as with and without reverse flow or inflow feedback) are used to show how each condition affects optimum induced power. Several results confirm the findings of earlier investigations such as a singularity in rotor power in reverse flow and induced power reduction with increase in blade number. Some of the new findings are that greater inflow feedback (due to greater solidity) reduces the induced power for an infinite-bladed rotor. For a rotor with a finite number of blades, the addition of inflow feedback can either increase or decrease optimum power depending on the flight conditions. Results obtained using higher harmonic blade pitch control show that induced power can be thereby reduced for all conditions.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2018

Mode of access: World Wide Web

ISBN: 9780355229202Subjects--Topical Terms:

557493
Mechanical engineering.
Index Terms--Genre/Form:

554714
Electronic books.

Minimum Induced Power for a Helicopter in High-Speed Forward Flight.
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035 $a (MiAaPQ)wustl:12320
035 $a AAI10621943
040 $a MiAaPQ $b eng $c MiAaPQ
100 1 $a Hong, JunSoo (Sean). $0 (orcid)0000-0002-9156-7779 $3 1148608
245 1 0 $a Minimum Induced Power for a Helicopter in High-Speed Forward Flight.
264 0 $c 2017
300 $a 1 online resource (92 pages)
336 $a text $b txt $2 rdacontent
337 $a computer $b c $2 rdamedia
338 $a online resource $b cr $2 rdacarrier
500 $a Source: Dissertation Abstracts International, Volume: 79-02(E), Section: B.
500 $a Adviser: David A. Peters.
502 $a Thesis (Ph.D.)--Washington University in St. Louis, 2017.
504 $a Includes bibliographical references
520 $a A dynamic inflow model is used to calculate minimum induced power for a helicopter in high-speed forward flight with infinite and finite number of blades. Comparisons between analytical and numerical results are shown and they show good agreement. Different flow conditions (such as with and without reverse flow or inflow feedback) are used to show how each condition affects optimum induced power. Several results confirm the findings of earlier investigations such as a singularity in rotor power in reverse flow and induced power reduction with increase in blade number. Some of the new findings are that greater inflow feedback (due to greater solidity) reduces the induced power for an infinite-bladed rotor. For a rotor with a finite number of blades, the addition of inflow feedback can either increase or decrease optimum power depending on the flight conditions. Results obtained using higher harmonic blade pitch control show that induced power can be thereby reduced for all conditions.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2018
538 $a Mode of access: World Wide Web
650 4 $a Mechanical engineering. $3 557493
650 4 $a Aerospace engineering. $3 686400
650 4 $a Engineering. $3 561152
655 7 $a Electronic books. $2 local $3 554714
690 $a 0548
690 $a 0538
690 $a 0537
710 2 $a ProQuest Information and Learning Co. $3 1178819
710 2 $a Washington University in St. Louis. $b Mechanical Engineering. $3 1148609
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10621943 $z click for full text (PQDT)

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