Results 91 to 100 of about 525 (130)

Ship-helo coupled airwake aerodynamics: A comprehensive review

Progress in Aerospace Sciences, 2019
Abstract A comprehensive review of the computational and experimental studies for ship-helo coupled airwakes is presented. The review starts with a brief introduction on the essential flow physics of ship and helicopter airwakes. The discussion is directed towards the physics of coupled behaviour of ship-helo airwakes in detail.
S. Shukla, S.S. Sinha, S.N. Singh
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A Conditional Perspective of the Ship Airwake

AIAA Journal
The 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, Nicholas Zhu, Zheng Zhang, Ebenezer Gnanamanickam, J. Gordon Leishman   +4 more
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Ship airwake effects on the helicopter rotor aerodynamic loads

19th Atmospheric Flight Mechanics Conference, 1994
A previously developed approach to modeling and simulation of ship airwake has been used in the study of airwake effects on rotor aerodynamic loads of a four-bladed articulated rotor system. Using full scale at sea test data, the current study identifies a power spectral model for the vertical component of the ship airwake velocity.
Hong Zhang, J. Prasad, Dimitri Mavris
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An investigation of ship airwake over the frigate afterbody

International Journal of Modern Physics B, 2020
When 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, Yi-Bin Wang, Ning Zhao, Ning Qin   +3 more
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Investigating ship airwake on a moving ship model

IET Conference Proceedings, 2023
K. Zheng, H. Setiawan, null Kevin, J. Lee, J. P. Monty   +4 more
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Unsteady Aerodynamic Loading on a Helicopter Fuselage in a Ship Airwake

Journal of the American Helicopter Society, 2004
unclassified
Lee, R., Zan, S. J.
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Towards Numerical Modeling of Coupled VSTOL-Ship Airwake Flowfields

42nd AIAA Aerospace Sciences Meeting and Exhibit, 2004
Validation of CRUNCH CFD ® for problems of relevance to modeling coupled VSTOL-Ship Airwake flow fields is presented. The basic numerical framework consists of an edge based multi-element unstructured Navier-Stokes solver. The governing equations are solved using an upwind biased MUSCL scheme and an implicit scheme is used for time marching. Validation
Srinivasan Arunajatesan, Jeremy Shipman, Neeraj Sinha   +2 more
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Analysis of Ship Airwakes Using Modal Analysis

AIAA SCITECH 2022 Forum, 2022
Nicholas Zhu, John G. Leishman, Zheng Zhang, Ebenezer Gnanamanickam   +3 more
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Investigation of Ship Airwakes Using a Hybrid Computational Methodology

Proceedings of the Vertical Flight Society 70th Annual Forum, 2014
The 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 ...
Nicholas Rosenfeld, Glen Whitehouse, Eliot Quon, Marilyn Smith, Philip Cross   +4 more
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Flow Structures of Ship Airwakes with Quartering Winds

AIAA SCITECH 2023 Forum, 2023
Kaijus H. Palm, Zheng Zhang, Ebenezer P. Gnanamanickam, John G. Leishman   +3 more
openaire   +1 more source