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Rotating detonation combustor performance informed through a novel megahertz-rate stagnation pressure measurement [PDF]

open access: bronzeThe Physics of Fluids
An experimental stagnation pressure measurement technique is presented for a rotating detonation combustor (RDC). Schlieren imaging enables rotating detonation wave passage to be correlated with oscillations observed in the under-expanded exhaust plume ...
Kevin Dille   +3 more
openalex   +2 more sources

Performance analysis of a rotating detonation combustor based on stagnation pressure measurements [PDF]

open access: yesCombustion and Flame, 2020
Abstract This study explores the effect of differing inlet and outlet boundary conditions on the operation and performance of a rotating detonation combustor (RDC) over an annulus mass flux range of 50 to 210  kg s − 1 m − 2 and equivalence ratios of 0.7, 1.0, and 1.3.
E. Bach   +3 more
semanticscholar   +4 more sources

Normal pressure hydrocephalus (NPH): ischaemia, CSF stagnation or both [PDF]

open access: bronzeBrain, 2004
Normal pressure hydrocephalus (NPH) is a clinical and radiographic syndrome first described by Hakim and Adams in 1965 (Hakim and Adams, 1965) and characterized clinically by gait apraxia (‘magnetic gait’), incontinence and dementia, and diagnosed predominantly among people over the age of 60 years. Only a minority of patients present with the complete
Gerald D. Silverberg
openalex   +3 more sources

High-pressure Reactive Melt Stagnation Recorded in Abyssal Pyroxenites from the Ultraslow-spreading Lena Trough, Arctic Ocean [PDF]

open access: bronze, 2013
Pyroxenites are an essential component in petrological and geochemical models for melt formation at mid-ocean ridges and ocean islands. Despite their rarity, their origin has been widely discussed and various processes have been invoked for their ...
Georgi Laukert   +5 more
openalex   +2 more sources

Mechanism and numerical simulation of pressure stagnation during water jetting perforation [PDF]

open access: bronzePetroleum Science, 2008
When perforating with an abrasive water jet, it is possible that the pressure in the hole (perforation) will be higher than that in the annulus because of water jet blasting against the hole wall, which also is the theoretical basis for the technology of hydro-jet fracturing.
Zhongwei Huang   +4 more
openalex   +4 more sources

CONSTRUCTAL DESIGN OF A VORTEX TUBE FOR SEVERAL INLET STAGNATION PRESSURES [PDF]

open access: bronzeRevista de Engenharia Térmica, 2012
The present paper shows a numerical study concerned with the geometrical optimization of a vortex tube device by means of Constructal Design for several inlet stagnation pressures. In the present study, it is evaluated a vortex tube with two-dimensional axisymmetric computational domain with dry air as the working fluid.
Crístofer Hood Marques   +3 more
openalex   +3 more sources

Impact of sensor housing geometries on transient stagnation pressure measurements in impulse facilities

open access: hybridExperimental Thermal and Fluid Science, 2019
The measurement of transient stagnation pressure in impulse facilities, such as shock tubes and expansion tubes, is critical due to the limited experimental time window. In the present study, we investigate the characteristic behavior of pressure sensors shielded by blunt and conical housings, and evaluate the specific influence of the housing ...
Zhaoguang Wang   +4 more
openalex   +4 more sources

Dynamic Properties of the Stagnation Pressure of Water Jet in the Continous Region.

open access: bronzeTRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B, 1996
It is of interest to clarify dynamic properties of water jet pressure acting on the surface of an object to be cut in order to clarify the cutting mechanism. This pressure includes a wide range of frequency components from the pulsation of a plunger pump to the impact pressure caused by the impingement of droplets.
Fumio Kiyono   +2 more
openalex   +3 more sources

Pressure Anomalies Beneath Solitary Waves with Constant Vorticity

open access: yesEng, 2023
While some studies have investigated the particle trajectories and stagnation points beneath solitary waves with constant vorticity, little is known about the pressure beneath such waves.
Marcelo V. Flamarion   +2 more
doaj   +1 more source

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