Results 21 to 30 of about 234,924 (310)

DESIGN CONCEPTS OF AN ONBOARD EARLY WARNING SYSTEM OF PILOT ABOUT ENTERING WAKE VORTICES FROM ANOTHER AIRCRAFT

open access: yesНаучный вестник МГТУ ГА, 2018
An airborne aircraft forms a wake vortex behind itself dangerous for other entering it aircraft both piloted and unmanned. Wake vortex intensity depends on parameters of the aircraft creating it, so the greater the aircraft mass is, the higher its impact
I. G. Golovnev   +3 more
doaj   +1 more source

Intense cavitation at extreme static pressure [PDF]

open access: yesUltrasonics, 2016
Cavitation is usually performed at hydrostatic pressures at or near 0.1 MPa. Higher static pressure produces more intense cavitation, but requires an apparatus that can build high amplitude acoustic waves with rarefactions exceeding the cavitation threshold.
Pishchalnikov, Yuri A.   +3 more
openaire   +2 more sources

Influence of guide vanes on the flow fields and performance of axial pump under unsteady flow conditions: Numerical study

open access: yesJournal of Mechanical Engineering and Sciences, 2020
Influence of different guide vanes on structural of flow field and axial pump performance under unsteady flow is carried out using numerical method. A three-dimensional axial flow pump model is numerically simulated using computational fluid dynamics ...
Ahmed Ramadhan Al-Obaidi
doaj   +1 more source

Static pressure and temperature adjustable sinusoidal pressure loading device

open access: yesMeasurement: Sensors, 2021
In this paper, a sinusoidal pressure loading device based on static pressure and temperature is introduced for the use of dynamic calibration and testing of the pressure measurement system with transmission pipe.
Bo Li   +4 more
doaj   +1 more source

The effect of static pressure on the loss of transition through an optical fiber with a constant multi-pattern refractive index [PDF]

open access: yesمجلة التربية والعلم, 2006
This work presents the study of the effect of the static pressure on the propagation of laser beam in the fibers. Three types of fiber have been used in this studies; multimode & step index fiber, Plastic Clad Plastic (PCP) with and with-out jacket and ...
Khalil Mustafa   +2 more
doaj   +1 more source

Optimal Design of a Plenum Fan with Three-Dimensional Blades

open access: yesApplied Sciences, 2020
We successfully designed an optimized plenum fan with a three-dimensional, smooth, curved blade. The optimized model revealed that the static pressure in the channel had been increased uniformly and stably, and the flow separation at the leading edge was
Kyung Jung Lee   +4 more
doaj   +1 more source

Measuring center of pressure signals to quantify human balance using multivariate multiscale entropy by designing a force platform [PDF]

open access: yes, 2013
Copyright © 2013 by the authors. To assess the improvement of human body balance, a low cost and portable measuring device of center of pressure (COP), known as center of pressure and complexity monitoring system (CPCMS), has been developed for data ...
Huang, C-W   +14 more
core   +1 more source

Experimental Study on Effects of Adjustable Vaned Diffusers on Impeller Backside Cavity of Centrifugal Compressor in CAES

open access: yesEnergies, 2021
The impeller backside cavity (IBC) is a unique structure of centrifugal compressor in compressed air energy storage (CAES) systems, which affects the aerodynamic performance of centrifugal compressor, and the angle change of the downstream coupled ...
Zhihua Lin   +5 more
doaj   +1 more source

Comparison between three static mixers for emulsification in turbulent flow [PDF]

open access: yes, 2011
This paper deals with comparing performances of three different static mixers in terms of pressure drop generated by both single-phase flow and liquid–liquid flow in turbulent flow regime and in terms of emulsification performances.
Theron, Félicie   +3 more
core   +1 more source

Lift measurement of airfoil AH93-157 from wall pressure distribution [PDF]

open access: yesEPJ Web of Conferences, 2022
Measurement of the lift coefficient of the AH93-157 airfoil was performed by measuring the static pressure distribution on the wind tunnel walls along the test-section.
Procházka Pavel   +5 more
doaj   +1 more source

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