| Zugriffsnummer | 24922 |
| Dokumenttyp | Konferenzartikel |
| Sprache | Englisch |
| Titel | Time-resolved OH-PLIF measurements after ignition of hydrogen/air mixtures by pulsed streamer discharges |
| Autor(in); Institution |
Markus, Detlef; 3.5, Zünddurchschlagsprozesse, PTB-Braunschweig
Hallermann, Aljoscha; 3.7, Zündquellensicherheit, PTB-Braunschweig
Paul, Michael; 3.5, Zünddurchschlagsprozesse, PTB-Braunschweig
Langer, Tim; 3.7, Zündquellensicherheit, PTB-Braunschweig
Lienesch, Frank; 3.7, Zündquellensicherheit, PTB-Braunschweig
|
| Quelle/Jahr | 14th International Symposium on Flow Visualization:(2010) |
| Availability | [CD-ROM] ; file name: 5E1-087.pdf |
| Herausgeber(in) |
Korean Society of Visualization
|
| Verlag | Daegu: |
| Konferenzangaben | 14th International Symposium on Flow Visualization (ISFV), Daegu, 20-24, June, 2010, Korea |
| Freie Schlagworte | Laser induced fluorescence ; Electrical sparks and discharges ; Combustion ; Planar laser induced fluorescence |
| Zusammenfassung | The ignition of hydrogen/air mixtures by repetitively pulsed nanosecond streamer discharges and subsequent flame propagation were examined. Inside a closed vessel the mixtures were ignited using high–frequency alternating voltage (up to 20 kV, 740kHz) and a rod/plane electrode configuration. Four sequential snapshots of two–dimensional OH distributions were received during one ignition event by the use of planar laser-induced fluorescence (PLIF). Therefore, two Nd:YAG lasers are used to pump a dye laser leading to four consecutive laser pulses in the spectral range of 282 nm with a minimum delay in the range of 15-60 μs between two laser pulses. The detection system for the OH fluorescence uses a beam splitter arrangement to split the collected light after each laser pulse onto one of four independent CCD detectors. The time resolved two-dimensional OH-PLIF images give detailed information about the ignition volume and early flame growth and show that ignition can take place along the whole streamer discharge channel. |
Zitierung
Markus, D., Hallermann, A., Paul, M., Langer, T., & Lienesch, F. (2010). Time-resolved OH-PLIF measurements after ignition of hydrogen/air mixtures by pulsed streamer discharges. 14th International Symposium on Flow Visualization (ISFV), Daegu, 20-24, June, 2010, Korea.