Results 1 to 10 of about 542 (125)
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
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
doaj +2 more sources
The Numerical Simulation of UAV's Landing in Ship Airwake [PDF]
Xibei Gongye Daxue Xuebao, 2019 In order to investigate the influence of ship airwake on aerodynamic characteristics of the carrier-based aircraft, UAV's landings in different winds over deck were simulated by Overset Mesh method. Firstly, mesh factors, steady and unsteady methods were
Xu Li +3 more
doaj +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
Thrust Prediction for a Rotor Operating in a Ship Airwake [PDF]
, 2015 This report details work performed at Old Dominion University focused on developing a thrust prediction capability for a rotor operating in a ship airwake.
Thomas, Mathew
core +3 more sources
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
Structure of a Ship Airwake at Multiple Scales
AIAA Journal, 2020 The airwake of a tumblehome ship geometry in uniform wind is investigated experimentally through dye visualization, particle image velocimetry, and laser Doppler anemometry, and numerically using a...
Gregory M. Dooley +4 more
openaire +1 more source