Results 11 to 20 of about 11,322,797 (240)

Measurements of a rotor flow in ground effect and visualization of the brown-out phenomenon [PDF]

open access: yes, 2008
Quantitative and qualitative results of a series of experiments conducted on a rotor in ground effect at low forward speeds are presented. The velocity over a wide area of the ground effect wake was measured using Particle Image Velocimetry (PIV), and ...
Green, R., Nathan, N.
core   +8 more sources

Ground effect on a rotor wake. [PDF]

open access: yes, 1985
The effect of the ground on a rotor wake in forward flight has been investigated experimentally in the working section of an 8ft x Oft straight-through wind tunnel.
Kusmarwanto, I.
core   +7 more sources

The effect of military load carriage on ground reaction forces [PDF]

open access: yes, 2007
Load carriage is an inevitable part of military life both during training and operations. Loads carried are frequently as high as 60% bodyweight, and this increases injury risk. In the military, load is carried in a backpack (also referred to as a Bergen)
Haslam, Roger   +5 more
core   +8 more sources

Ground effect analysis of a Formula SAE car [PDF]

open access: yes, 2023
openThis thesis aims to investigate the ground effect behavior of the Formula SAE car, SGe-06, a competitive vehicle of the University of Padua during the academic year 2022/2023.
MINTO, ANTONIO
core  

Aerodynamics of UH-60 Helicopter-inlet Integration in Ground Effect [PDF]

open access: yesJournal of Applied Fluid Mechanics
This paper describes a comprehensive numerical investigation into the aerodynamic characteristics of a full-scale UH-60 helicopter–inlet integrated flow field under the ground effect.
S. Yang, S. Sun, Z. Wu, H. Zhou, Y. Liu
doaj   +1 more source

'Ground effect' Inter-Modal Fast Sea Transport [PDF]

open access: yesTransNav, 2014
Energy and emission reduction strategies are extremely important in actual transport situation. ?Ground effect? technology recognized from the late sixties has a problem with wide expanding in sea transport.
Zbigniew Pagowski, Krzysztof Szafran
doaj   +1 more source

Aerodynamic measurement of a track runner using a wind-tunnel moving-belt system

open access: yesNihon Kikai Gakkai ronbunshu, 2014
Concerning most of track-and-field athletics such as the marathon, it is important to clarify the flow around track runners and to evaluate their air resistances (or wind resistances, drags).
Katsuya HIRATA   +5 more
doaj   +1 more source

Wake behind a Compound Wing in Ground Effect

open access: yesJournal of Marine Science and Engineering, 2020
Flow structure is a crucial point for the conceptual design of Wing-in-Ground effect (WIG) crafts. In this study, pressure distributions around a compound wing, velocity and the turbulent intensity distribution in the wake area after trailing of the wing,
Saeed Jamei   +6 more
doaj   +1 more source

Ground independent planar inverted-F antenna (PIFA) for very small mobile phone [PDF]

open access: yes, 2010
Copyright @ 2010 LAPCA small ultr-thin tri-band Planar Inverted-F Antenna (PIFA) is presented. The proposed antenna consists of slotted radiated parts supported by shorting walls and a ground plane.
AbuTarboush, HF, Nilavalan, R, Peter, T
core   +6 more sources

A rational method to evaluate tornado-borne missile speed in nuclear power plants (Validation of a numerical code based on Fujita's tornado model)

open access: yesNihon Kikai Gakkai ronbunshu, 2015
Explanation is given about a rational method to evaluate tornado-borne missile speed, flight distance and flight height to be used for safety design of a nuclear power plant.
Yuzuru EGUCHI   +3 more
doaj   +1 more source

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