Producing ultra-high-speed nitrogen jets by arc heating in a low-pressure chamber
Pure nitrogen gas was heated with direct current arc, at input powers from several hundred W to over 5 kW, and then injected through a nozzle into a chamber at 1 or 10 Pa pressure, with the purpose of accelerating the gas to very high speed around 7 km/s. Various structures of the arc generator and...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2016-01-01
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| Series: | Theoretical and Applied Mechanics Letters |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2095034916000039 |
| _version_ | 1818306049220804608 |
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| author | Wenxia Pan Xian Meng Heji Huang Chengkang Wu |
| author_facet | Wenxia Pan Xian Meng Heji Huang Chengkang Wu |
| author_sort | Wenxia Pan |
| collection | DOAJ |
| description | Pure nitrogen gas was heated with direct current arc, at input powers from several hundred W to over 5 kW, and then injected through a nozzle into a chamber at 1 or 10 Pa pressure, with the purpose of accelerating the gas to very high speed around 7 km/s. Various structures of the arc generator and gas expansion nozzle were examined. Results show that bypass exhausting of the boundary layer before it enters the nozzle divergent section can greatly increase flow speed of the jet, thus it might be possible to use nitrogen as a working gas in high speed gas dynamic test facilities. |
| first_indexed | 2024-12-13T06:36:18Z |
| format | Article |
| id | doaj.art-cc5df936ba124eeb94957c4688519174 |
| institution | Directory Open Access Journal |
| issn | 2095-0349 |
| language | English |
| last_indexed | 2024-12-13T06:36:18Z |
| publishDate | 2016-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Theoretical and Applied Mechanics Letters |
| spelling | doaj.art-cc5df936ba124eeb94957c46885191742022-12-21T23:56:31ZengElsevierTheoretical and Applied Mechanics Letters2095-03492016-01-0161606310.1016/j.taml.2015.12.003Producing ultra-high-speed nitrogen jets by arc heating in a low-pressure chamberWenxia PanXian MengHeji HuangChengkang WuPure nitrogen gas was heated with direct current arc, at input powers from several hundred W to over 5 kW, and then injected through a nozzle into a chamber at 1 or 10 Pa pressure, with the purpose of accelerating the gas to very high speed around 7 km/s. Various structures of the arc generator and gas expansion nozzle were examined. Results show that bypass exhausting of the boundary layer before it enters the nozzle divergent section can greatly increase flow speed of the jet, thus it might be possible to use nitrogen as a working gas in high speed gas dynamic test facilities.http://www.sciencedirect.com/science/article/pii/S2095034916000039Low-power nitrogen arc-heaterLateral bypass-exhaustingVery high flow speedNozzle structureChamber pressure |
| spellingShingle | Wenxia Pan Xian Meng Heji Huang Chengkang Wu Producing ultra-high-speed nitrogen jets by arc heating in a low-pressure chamber Theoretical and Applied Mechanics Letters Low-power nitrogen arc-heater Lateral bypass-exhausting Very high flow speed Nozzle structure Chamber pressure |
| title | Producing ultra-high-speed nitrogen jets by arc heating in a low-pressure chamber |
| title_full | Producing ultra-high-speed nitrogen jets by arc heating in a low-pressure chamber |
| title_fullStr | Producing ultra-high-speed nitrogen jets by arc heating in a low-pressure chamber |
| title_full_unstemmed | Producing ultra-high-speed nitrogen jets by arc heating in a low-pressure chamber |
| title_short | Producing ultra-high-speed nitrogen jets by arc heating in a low-pressure chamber |
| title_sort | producing ultra high speed nitrogen jets by arc heating in a low pressure chamber |
| topic | Low-power nitrogen arc-heater Lateral bypass-exhausting Very high flow speed Nozzle structure Chamber pressure |
| url | http://www.sciencedirect.com/science/article/pii/S2095034916000039 |
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