Results 271 to 280 of about 4,848,004 (344)
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Pressure field generated by jet-on-jet impingement
AIAA Journal, 1987Etude experimentale de l'impact de deux jets turbulents axisymetriques l'un sur l'autre. L'angle d'impact est de 180° et les jets sont issus de grandes plaques planes.
Nagy Nosseir +2 more
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Atmospheric pressure plasma jets
2015Cold atmospheric pressure plasma jets, although mostly researched for applications in surface treatment, are rarely investigated in the presence of a surface. This paper presents the properties of plasma bullets formed in the capillary as well as the dynamics of the propagation of the plasma on dielectric surfaces as a function of applied voltage ...
Sobota, A. +2 more
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Pressure Drop Model and Jet Features of Ultra High Pressure Water Jet for Downhole Intensifier
Journal of Energy Resources Technology, 2022Abstract Existing models can hardly provide a reliable guidance in designing intensifier utilizing axial vibration energy of drill strings. The formation process of jet and the pulsation characteristics of flow field had not been reported. Therefore, a new model combined plunger movement and nozzle pressure drop is proposed.
Wang, Huajian +8 more
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Microplasma jet at atmospheric pressure
Applied Physics Letters, 2006A nitrogen microplasma jet operated at atmospheric pressure was developed for treating thermally sensitive materials. For example, the plasma sources in treatment of vulnerable biological materials must operate near the room temperature at the atmospheric pressure, without any risk of arcing or electrical shock.
Yong Cheol Hong, Han Sup Uhm
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The Journal of the Royal Aeronautical Society, 1958
Before enlarging on the main subject of this paper, it will be helpful to clarify some fundamental conceptions of various rotor drive configurations.In the past the original shaft-driven helicopter presented two major problems to the designer. These were first: the necessity to choose between either some torque balancing device or a multi-rotor layout ...
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Before enlarging on the main subject of this paper, it will be helpful to clarify some fundamental conceptions of various rotor drive configurations.In the past the original shaft-driven helicopter presented two major problems to the designer. These were first: the necessity to choose between either some torque balancing device or a multi-rotor layout ...
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Pressure collimation of relativistic jets
Chinese Astronomy and Astrophysics, 1989Abstract Spacetime curvature around a black hole decollimates jets produced near the hole. For fluid jets, pressure effects in most cases can dominate over gravitational effects, thus leading to an overall collimation of the flow. In order to keep a jet flowing in regions far from the black hole, the external pressure Pθ of the medium should not drop
null Lu Jufu, null Yang Zhongguo
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Atmospheric pressure plasma jet applications
25th Anniversary, IEEE Conference Record - Abstracts. 1998 IEEE International Conference on Plasma Science (Cat. No.98CH36221), 1998Summary form only given. The atmospheric pressure plasma jet (APPJ) is a non-thermal, high pressure plasma discharge that produces a high velocity effluent stream of highly reactive chemical species. The discharge operates on a feedstock gas (e.g.
J. Park +3 more
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CoatingsPro, 2006
Whether blasting steel or concrete surfaces, new developments in high-pressure water jetting can help when removing HAZMAT.
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Whether blasting steel or concrete surfaces, new developments in high-pressure water jetting can help when removing HAZMAT.
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Jet-Vac Differential Pressure Perforating
Journal of Canadian Petroleum Technology, 1972Abstract Laboratory data confirmed by field results have shown that perforations can be seriously plugged when there is a pressure differential toward the formation at the time of perforating, As a result there has been a trend toward through-tubing completion, so that the wells can be perforated dry or with a ...
L.P. Maier, S.H. Nelner
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In situ experimental study on TBM excavation with high-pressure water-jet-assisted rock breaking
Journal of Central South University, 2022Jinliang Zhang +4 more
semanticscholar +1 more source