Results 41 to 50 of about 91 (81)
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Velocity Measurements in A Ship Airwake With Crosswind
42nd AIAA Fluid Dynamics Conference and Exhibit, 2012In situ air velocity measurements in the near wake of a Navy training ship are presented for an inflow of 15 to starboard. This data is required for the validation of ship airwake simulations, which are used to determine the launch and recovery envelopes for shipborne rotorcraft and for use in piloted flight simulations.
Cody Brownell +3 more
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Unsteady Aerodynamic Loading on a Helicopter Fuselage in a Ship Airwake
Journal of the American Helicopter Society, 2004unclassified
Lee, R., Zan, S. J.
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An investigation of ship airwakes using Detached-Eddy Simulation
Computers & Fluids, 2010zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Forrest, James S., Owen, Ieuan
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An investigation of ship airwake over the frigate afterbody
International Journal of Modern Physics B, 2020When air passes through the hangar of a frigate, the unstable airwake appears in the rear of the hangar, which may significantly increase the workload of the ship-borne helicopter pilot. Therefore, there must be a profound understanding of the characteristics of the airwake.
Tong Li +3 more
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A Conditional Perspective of the Ship Airwake
AIAA JournalThe airwake of a simplified frigate model was measured using a synchronous, dual-plane, stereoscopic particle image velocimetry (PIV) approach. Four pairs of orthogonal streamwise and spanwise plane combinations were surveyed over the flight deck. Synchronous PIV measurements allowed the three-dimensional airwake structure to be examined during two ...
Guillermo Mazzilli +4 more
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A computational study of unsteady ship airwake
40th AIAA Aerospace Sciences Meeting & Exhibit, 2002Abstract : The superstructure, deck, and other features of large ships produce large separated regions in the airflow over the ship and a variety of vortex flows generated mainly by edges in the geometry. These features are of importance for aircraft operations on and around these ships.
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Numerical Study of Helicopter Rotors in a Ship Airwake
Journal of Aircraft, 2014Operating helicopters in a naval environment is challenging because it imposes a pilot workload significantly higher than that during land-based operations. The aerodynamic interaction between the aircraft and the ship wake is known to play an important role in increasing the pilot workload, hence reducing the aircraft capability as a result of ...
C. Crozon, R. Steijl, G. N. Barakos
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Helicopter Aerodynamic Loading in the Airwake of a Moving Ship
Proceedings of the Vertical Flight Society 79th Annual Forum and Technology Display, 2023Fernandez, Nicholas +5 more
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Investigation of Ship Airwakes Using a Hybrid Computational Methodology
Proceedings of the Vertical Flight Society 70th Annual Forum, 2014The simple frigate shape geometry (SFS2) has been studied in free-air and wind tunnel environments for both headwind and yawed flow configurations. The ability of an unsteady Reynolds-Averaged Navier-Stokes (URANS) solver and a URANS/Vorticity Transport hybrid computational methodology to capture the bluff body wake characteristics has been assessed ...
Nicholas Rosenfeld +4 more
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Investigations of Ship Airwakes Using Concurrent Computations and Experiments
Proceedings of the Vertical Flight Society 76th Annual Forum, 2020With modern advancements in computational resources, higher fidelity simulations of the ship-rotorcraft dynamic interface using large eddy simulations are now more feasible. Wind tunnel experiments remain one of the best validation tools for computational fluid dynamics simulations, but it is challenging to recreate full-scale ship and ...
Dhuree Seth +3 more
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