Počet záznamů: 1
Time-resolved processes in a pulsed electrical discharge in water generated with shock wave assistance in a plate-to-plate configuration
- 1.0435331 - ÚFP 2015 RIV GB eng J - Článek v odborném periodiku
Stelmashuk, Vitaliy
Time-resolved processes in a pulsed electrical discharge in water generated with shock wave assistance in a plate-to-plate configuration.
Journal of Physics D-Applied Physics. Roč. 47, č. 49 (2014), s. 495204-495204. ISSN 0022-3727. E-ISSN 1361-6463
Institucionální podpora: RVO:61389021
Klíčová slova: underwater discharge * streamers * spark * cavitation bubble * shock wave
Kód oboru RIV: BL - Fyzika plazmatu a výboje v plynech
Impakt faktor: 2.721, rok: 2014
http://iopscience.iop.org/0022-3727/47/49/495204/pdf/0022-3727_47_49_495204.pdf
Plate-to-plate geometry is not usually used for a discharge generation in water because of a low electric field that is insufficient for electrical breakdown between electrodes. In the present research, a new method of the generation of electrical discharge in water using plate electrodes is proposed. A high voltage pulse is applied to a pair of disc electrodes at a time when a shock wave is passing between them. This method allows for depositing a higher electrical energy than with the case of pin-to-pin electrodes (or pin-to-plate electrodes) without their destruction. This discharge initiation occurs in numerous cavitation bubbles generated by the shock wave. The discharge evolution was studied using a high-speed framing camera. Two interesting effects have been observed. Firstly, multiple streamers are incepted on a cathode, which is not typical for the symmetrical electrode configuration. Secondly, the plasma in the spark channel reveals not to be homogeneous.
Trvalý link: http://hdl.handle.net/11104/0239223
Počet záznamů: 1