Fully-coupled simulations of the rotorcraft / ship dynamic interface

Emre Alpman, Lyle Norman Long, Derek O. Bridges, Joseph Francis Horn

Research output: Contribution to journalConference article

18 Citations (Scopus)

Abstract

A fully- coupled simulation tool has been developed to analyze the rotorcraft/ship dynamic interface problem. An existing computational fluid dynamics code and a flight dynamics simulation model have been coupled for this purpose. The flight dynamics model provided the location and orientation of the helicopter and the main rotor as well as the blade loads while the computational fluid dynamics code provided local air velocities. Computations have been performed for a UH-60A hovering behind an aircraft hangar and approaching an LHA class ship. For the solutions the flowfield is assumed to be inviscid and atmospheric turbulence and boundary layer effects have been neglected. The results show that when the helicopter is operating in ground effect or close to solid structures, the interactions between the airwake and the rotor wake can invalidate the one-way coupled solutions.

Original languageEnglish (US)
Pages (from-to)1367-1382
Number of pages16
JournalAnnual Forum Proceedings - AHS International
Volume2
StatePublished - Aug 20 2007
EventAmerican Helicopter Society International 63rd Annual Forum - Riding the Wave of New Vertical Flight Technology - Virginia Beach, VA, United States
Duration: May 1 2007May 3 2007

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Flight dynamics
Helicopters
Computational fluid dynamics
Ships
Rotors
Hangars
Ground effect
Atmospheric turbulence
Turbomachine blades
Dynamic models
Boundary layers
Aircraft
Computer simulation
Air

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Alpman, Emre ; Long, Lyle Norman ; Bridges, Derek O. ; Horn, Joseph Francis. / Fully-coupled simulations of the rotorcraft / ship dynamic interface. In: Annual Forum Proceedings - AHS International. 2007 ; Vol. 2. pp. 1367-1382.
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Fully-coupled simulations of the rotorcraft / ship dynamic interface. / Alpman, Emre; Long, Lyle Norman; Bridges, Derek O.; Horn, Joseph Francis.

In: Annual Forum Proceedings - AHS International, Vol. 2, 20.08.2007, p. 1367-1382.

Research output: Contribution to journalConference article

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AU - Horn, Joseph Francis

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