دورية أكاديمية
Transient Shock Formation of Pulsed Electrothermal Plasma Discharge Confined in an Extended Bore
| العنوان: | Transient Shock Formation of Pulsed Electrothermal Plasma Discharge Confined in an Extended Bore |
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| المؤلفون: | Kyoungjin KIM, Ho Sang KWAK, Joong-Youn PARK |
| المصدر: | Journal of Thermal Science and Technology, Vol 5, Iss 1, Pp 75-86 (2010) |
| بيانات النشر: | The Japan Society of Mechanical Engineers, 2010. |
| سنة النشر: | 2010 |
| المجموعة: | LCC:Mechanical engineering and machinery LCC:Mechanics of engineering. Applied mechanics |
| مصطلحات موضوعية: | electrothermal gun, pulsed plasma discharge, underexpanded supersonic jet, shock formation, Mechanical engineering and machinery, TJ1-1570, Mechanics of engineering. Applied mechanics, TA349-359 |
| الوصف: | An electrothermal gun possesses a great potential to be an efficient source of pulsed plasma discharge for nanomaterials production or thermal plasma spray coatings. A plasma discharge by intense pulsed power is numerically studied utilizing time-dependent gas dynamics equations which are solved by FCT (flux-corrected transport) algorithm in two-dimensional domain of the interior capillary bore region and the external region of extended bore. Plasma conditions at the bore exit, mass ablation of polycarbonate bore wall, and degree of ionization are determined at different levels of transient arc current profile. As a way to controlling the plasma discharge, the extended bore at the capillary exit is considered and the flow pattern of pulsed plasma discharge in the extended bore exhibit complex shock structure from slightly to highly underexpanded jet depending on the level of arc current profiles. Flow instability of oscillating Mach disk is found at higher level of arc current profile cases. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1880-5566 |
| Relation: | https://www.jstage.jst.go.jp/article/jtst/5/1/5_1_75/_pdf/-char/en; https://doaj.org/toc/1880-5566 |
| DOI: | 10.1299/jtst.5.75 |
| URL الوصول: | https://doaj.org/article/842d23a847bf4f94b66c4d451bf68138 |
| رقم الأكسشن: | edsdoj.842d23a847bf4f94b66c4d451bf68138 |
| قاعدة البيانات: | Directory of Open Access Journals |
| تدمد: | 18805566 |
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| DOI: | 10.1299/jtst.5.75 |