Results 31 to 40 of about 179,245 (211)

Stagnation Hugoniot Analysis for Steady Combustion Waves in Propulsion Systems [PDF]

open access: yes, 2006
The combustion mode in a steady-flow propulsion system has a strong influence on the overall efficiency of the system. To evaluate the relative merits of different modes, we propose that it is most appropriate to keep the upstream stagnation state fixed ...
Shepherd, J. E., Wintenberger, E.
core   +1 more source

Stagnation pressure probe [PDF]

open access: yes, 1974
A method and apparatus for measuring the stagnation pressure of supersonic velocity gas streams without the generation of shock waves which interfere with such measurements are given. The technique is insensitive to the type of gas and Mach number and is
Goodyer, M. J.
core   +1 more source

Spatiotemporal Variability of Air Stagnation and its Relation to Summertime Ozone in the Yangtze River Delta of China

open access: yesFrontiers in Environmental Science, 2021
This paper investigates the spatiotemporal variability of air stagnation in summer as well as its relation to summer ozone (O3) over the Yangtze River Delta (YRD) region of China. Air stagnation days (ASDs) in the YRD during the summers from 2001 to 2017
Min Xie   +8 more
doaj   +1 more source

Development of an Analytical Method for Predicting Flow in a Supersonic Air Ejector

open access: yesEPJ Web of Conferences, 2016
The article deals with development of an analytical method for predicting flow in an ejector with twelve supersonic nozzles, which are located at the periphery of the mixing chamber of the ejector.
Kracik Jan, Dvorak Vaclav
doaj   +1 more source

Interaction of two vortices in a flued with lower stagnation pressure [PDF]

open access: yesQuarterly of Applied Mathematics, 1977
The flow field induced by two point vortices of strength Γ \Gamma at a distance 2 h 2h apart in a quiescent field with lower stagnation pressure is investigated. The flow field around the vortices is bounded by a free streamline with constant velocity U U determined by the ...
openaire   +1 more source

Operational feasibility study of stagnation pressure reaction control for a mid-caliber non-spinning projectile

open access: yesDefence Technology, 2023
Controlled, guided munitions can reduce dispersion in the shot, while providing the capability of engaging both stationary and maneuvering targets. The Netherlands Organisation for Applied Scientific Research has developed a fin-less control technology ...
F. Bouquet
doaj   +1 more source

A proposed correlation for critical flow rate of water flow

open access: yesNuclear Engineering and Technology, 2015
A new correlation predicting the idealized critical mass-flow rates of water for subcooled and saturated liquid water including two-phase water flow was developed for a wide range of upstream stagnation pressures (e.g., 0.5–20.0 MPa).
Yeon-Sik Kim
doaj   +1 more source

Methane Cluster Fragmentation by Fast Electron Impact

open access: yesAtoms, 2023
We investigate the fragmentation of the CH4 cluster by fast electron impact at stagnation pressures from 0.5 bar to 16 bar. By measuring the time of flight spectrum (TOF), two types of ions, including (CH4)n−1CH5+ and (CH4)n−2(C2Hm)+, are observed.
Shuncheng Yan   +3 more
doaj   +1 more source

Stagnation–saddle points and flow patterns in Stokes flow between contra-rotating cylinders [PDF]

open access: yes, 1998
The steady flow is considered of a Newtonian fluid, of viscosity mu, between contra-rotating cylinders with peripheral speeds U-1 and U-2 The two-dimensional velocity field is determined correct to O(H-0/2R)(1/2), where 2H(0) is the minimum separation of
Gaskell, P.H.   +2 more
core   +1 more source

Plasma-Assisted Control of Supersonic Flow over a Compression Ramp

open access: yesAerospace, 2019
This study considers the effect of an electric discharge on the flow structure near a 19.4° compression ramp in Mach-2 supersonic flow. The experiments were conducted in the supersonic wind tunnel SBR-50 at the University of Notre Dame.
Yasumasa Watanabe   +2 more
doaj   +1 more source

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