Results 1 to 10 of about 43 (39)
Experimental investigation of the flow on a simple frigate shape (SFS). [PDF]
ScientificWorldJournal, 2014 Helicopters operations on board ships require special procedures introducing additional limitations known as ship helicopter operational limitations (SHOLs) which are a priority for all navies. This paper presents the main results obtained from the experimental investigation of a simple frigate shape (SFS) which is a typical case of study in ...
Mora RB.
europepmc +2 more sources
Entropy-based detached-eddy simulation of the airwake over a simple frigate shape
Advances in Mechanical Engineering, 2015 The wind past the ship superstructure produces an unsteady turbulent airwake which has a significant effect on aircraft performance and consequently pilot workload during ship landing process.
Zhao Rui +3 more
exaly +2 more sources
Applied Sciences (Switzerland)To meet the requirements of the high spatiotemporal three-dimensional (3D) airflow field within the glide path corridor during carrier-based aircraft/unmanned aerial vehicles (UAVs) landings, this paper proposes a prediction method for high ...
Gan Ren, Bo Liu, Dingfu Zhou
exaly +3 more sources
Journal of Marine Science and EngineeringThe oceanic wind and waves, as well as the resultant ship motions, significantly impact the ship airwake and the operation of shipborne helicopters. A numerical method coupling wind, wave, ship and helicopter is developed using multiphase flow, in which ...
Yongjie Shi
exaly +3 more sources
An Investigation of Ship Airwakes by Scale Adaptive Simulation [PDF]
TransNav, 2020 An early assessment of the ship airwakes flow characteristic is one of the most challenging tasks associated with the designing of vessels. The presence of ship airwake creates very complex flow phenomena due to the presence of strong velocity gradients ...
Shrish Shukla +3 more
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Xibei Gongye Daxue Xuebao, 2021 A conventional helicopter flight dynamics model, which can be coupled with ship airwake date, is developed in this study. In the method, the ship airwake data is obtained by the high-accuracy DES model, and a strategy which can transmit CFD data to the ...
DENG Jinghui
doaj +1 more source
CFD Aided Ship Design and Helicopter Operation
Journal of Marine Science and Engineering, 2022 In support of Canadian industrial and defence ship design and offshore helicopter operations, a series of Ship–Helicopter Operational Limits Analysis and Simulation (SHOLAS) projects are being conducted at the National Research Council Canada (NRC) in ...
Weixing Yuan +5 more
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Journal of Marine Science and Engineering, 2022 Landing a helicopter to the ship flight deck is most demanding even for the most experienced pilots and modeling and simulation of the ship-helicopter dynamic interface is a substantially challenging technical problem. In this paper, a coupling numerical
Yihua Cao +3 more
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Engineering Applications of Computational Fluid Mechanics, 2021 The coupled rotor/ship flowfield is investigated using the Navier–Stokes solver when the helicopter rotor hovers in the ship’s airwake. The solid rotor model (SRM) and virtual rotor model (VRM) are employed, considering the different types of rotor ...
Zhao Dingxuan +3 more
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Aerodynamic/flow field numerical simulation of carrier-based UAV landing in sea wind field
Hangkong gongcheng jinzhan, 2020 During the landing phase of a carrier-based fixed-wing unmanned aerial vehicle(UAV), the aircraft must traverse a highly complex aerodynamic environment characterized by the intricate wind field over the sea surface and the turbulent flow field at the ...
GENG Yansheng, XU Xiaoping, ZHOU Zhou
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