Longer delays lead to the detonation or the snowplow mode while shorter delays lead to the relatively efficient stationary or deflagration mode. One of the theories that explain the two different modes is based on plasma resistivity. A numerical modeling study is presented here in the context of ...
Transient events in fusion power plants such as DEMO and ITER are known to pose a severe threat to plasma facing components (PFCs) due to melting and erosion after repeated edge localized mode (ELM) loads. In situ experimental testing of potential PFC materials at fusion relevant conditions is...
The transition from snowplow mode to deflagration mode of a parallel-plate plasma accelerator under gas-prefilled conditions is studied. The accelerator is powered by a sinusoidal-wave power supply with a first half-period current of 24.3 μs. The current distribution of the current conduction chan...
Keywordsdefiagratonofcombustbievapourcioudopenngtoar,energywavemodei,Euiere uaton,numercai smuiaton 引言 开敞空间可燃气云爆炸可造成巨大的经济损失 和人员伤亡 [1] ,定性与定量分析开敞空间可燃气云 爆炸对了解其成灾模式和提出防灾减灾措施是十分 必要和有现实意义的. 开敞空间可燃气云爆炸大多数为爆燃情况,...
It is shown that depending on the initial conditions this creeping detonation mode is evoked either immediately or emerges after some time delay as a product of an abrupt transition from the low-velocity deflagration. The transition is triggered by a localized thermal explosion in the extended (...
It is concluded that the effective electrode length, pulse timing, circuit parameters, and electrode geometry could be optimized to operate the thruster in the quasi-steady/deflagration mode, hence improving the electrical energy transfer efficiency....
The nanosecond repetitive voltage pulses generate a non-thermal plasma that transition a combustion front propagation through the housing from a deflagration mode to a detonation mode.Deanna A. LACOSTE
It has been shown that, even under very mild conditions (low-strength shell and a weak source of initiation), the deflagration mode of mixture combustion easily transforms into the detonation mode. The shortest length of the region of transition from deflagration to normal detonation (not more ...
It is concluded that the effective electrode length, pulse timing, circuit parameters, and electrode geometry could be optimized to operate the thruster in the quasi-steady/deflagration mode, hence improving the electrical energy transfer efficiency....
These results open up new possibilities for the design of air-breathing propulsion systems with fuel combustion in the detonation mode. The low detonability of jet kerosene-air mixtures is the major obstacle to the development of an air-breathing pulse detonation engine (PDE). Currently, work is...