A single-phase two-dimensional mathematical model was used for analyzing the behavior of a gas well intersecting a finite conductivity vertical fracture at the center of a closed square gas reservoir. Turbulent flow in both the fracture and the formation was included in the model. The analysis ...
In this paper, a computational model is constructed to investigate the phenomenon of the initial plasma formation and current transfer in the single-wire electrical explosion in a vacuum. The process of the single-wire electrical explosion is divided into four stages. Stage Ⅰ: the wire is in ...
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In order to consider a 5D vacuum on the 5D Ricci flat metric (5), we shall consider a non-massive scalar field φ(xa) which is free of interactions. Its dynamics can be derived from the action [12](12)S(5)=∫g5[R(5)16πG−12gabφ,aφ,b]d4xdψ, where R(5) is the Ric...
Combined pressure-vacuum purging yn−yoxy=PLPHN[yo−yoxy] Crowl and Louvar (2001) Sweep-through purging Qvt=V⋅lnC1−CoC2−Co Crowl and Louvar (2001) Where (a) Ci is the initial oxygen concentration. (b) CN is the final oxygen concentration. (c) Cp is the oxygen concentration...
Experimental and computational investigations of nanosecond electrical explosion of a thin Al wire in vacuum are presented. We have demonstrated that increasing the current rate leads to increased energy deposited before voltage collapse. The experimental evidence for synchronization of the wire expansion an...
EXPLOSION-PROOF DEVICE FOR VACUUM PUMP
Explosion Proof 2BV Series Single Double Stage vacuum pump 2BV series water ring vacuum pump is suitable for pump air with water vapor, inspiratory pressure can reach 33mbar absolute pressure (97% vacuum degree). When the pump works under the inspiratory pressure is close to li...
Blasting and Blast Effects in Cold Regions. Part 1. Air Blast Contents: Ideal blast waves in free air; The shock equations for air blast; Scaling procedures for comparison of explosions; Reflection and refraction of a... M Mellor - 《Vacuum》 被引量: 14发表: 1985年 Scaling the response ...
Vacuum status is always reached in a vacuum purging procedure. From the perspective of safety, vacuum purging is only applied to vessels that are designed to withstand vacuum. A typical vacuum purging procedure consists of following steps: 1. Use a vacuum to pump out the gas inside vessels unt...