Results 41 to 50 of about 179,245 (211)
Mechanism and numerical simulation of pressure stagnation during water jetting perforation [PDF]
Petroleum 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
openaire +1 more source
A Physical Interpretation of Stagnation Pressure and Enthalpy Changes in Unsteady Flow [PDF]
, 2018 This paper provides a physical interpretation of the mechanism of stagnation enthalpy and stagnation pressure changes in turbomachines due to unsteady flow, the agency for all work transfer between a turbomachine and an inviscid fluid. Examples are first
Greitzer, Edward M +3 more
core +1 more source
AN INVESTIGATION OF LIQUID METAL AND GAS FLOW CHARACTERISTICS IN CONFINED ATOMIZATION NOZZLE
Journal of Engineering, 2005 Supersonic gas jets in confined liquid metal atomizing nozzle were studied by using the method of characteristics. Nitrogen at operation (stagnation) pressure of (1.65Mpa) was used in the study, with three different values of ambient pressure (1.25, 1 ...
Ihsan Y. Hussain
doaj +1 more source
Comment on “Jet propulsion by microwave air plasma in the atmosphere” [AIP Adv. 10, 055002 (2020)]
AIP Advances, 2020 In this Comment, we analyze the performance of a microwave plasma device presented by Ye et al. [AIP Adv. 10, 055002 (2020)]. The efficiency analysis, using conservation of energy, shows that the methods used by the original authors predict up to 8000 ...
Peter L. Wright +3 more
doaj +1 more source
Energies, 2022 This study aims to analyze the aerodynamic interaction between moving vehicles platooning with the change in the platooning conditions on a freeway. The effect of the vortex generated by the forward vehicle reduces the value of the stagnation pressure ...
Junik Jo, Chul-Ho Kim
doaj +1 more source
Computer program determines gas flow rates in piping systems [PDF]
, 1966 Computer program calculates the steady state flow characteristics of an ideal compressible gas in a complex piping system. The program calculates the stagnation and total temperature, static and total pressure, loss factor, and forces on each element in ...
Franke, R.
core +1 more source
Meitan kexue jishuThe deterioration of the thin bedrock mining crack channel under the loose layer induces sudden water and sand inrush disasters, which seriously threatens the safe production of the mine.
Guibin ZHANG +4 more
doaj +1 more source
, 1966 Flow meter for measuring stagnation pressure in boundary layer around high speed flight ...
Degeer, M. D. +3 more
core +1 more source
COLD SPRAY DEPOSITION EFFICIENCY CONTROL OF PROTECTIVE AND RESTORATIVE COATINGS ON MAGNESIUM ALLOYS
Авіаційно-космічна техніка та технологія, 2018 The crucial task of developing the technology of low pressure cold gas–dynamic spraying and its wide application in the aviation, automotive and other industries is the possibility of obtaining coatings with given properties and deposition efficiency as ...
Александр Владимирович Шоринов +1 more
doaj +1 more source
Control of Reynolds number in a high speed wind tunnel [PDF]
Journal of Aerospace Technology and Management, 2009 A conceptual control model for the Reynolds number test based on isentropic relations was established for the supersonic wind tunnel. Comparison of the system response of the model simulation and the actual wind tunnel test data was made to design the ...
Maurício G. Silva +2 more
doaj