Tomographic investigations of instabilities in thermal plasma jet

0384677 - ÚT 2013 IT eng C - Konferenční příspěvek (zahraniční konf.)
Hlína, Jan - Gruber, Jan - Šonský, Jiří
Tomographic investigations of instabilities in thermal plasma jet.
12th European Plasma Conference (High-Tech Plasma Processes). Bologna: Universita di Bologna (DIEM), 2012, s. 1-1. ISBN -.
[European Plasma Conference (High-Tech Plasma Processes) /12./. Bologna (IT), 24.06.2012-29.06.2012]
Institucionální podpora: RVO:61388998
Klíčová slova: thermal plasma jet * optical tomography * Fourier transform
Kód oboru RIV: BL - Fyzika plazmatu a výboje v plynech

Stability of a thermal plasma jet was investigated using multidirectional optical diagnostics combined with fast Fourier transform analysis yielding frequency spectra. Stability phenomena have been analyzed in various frequency bands in planes perpendicular to plasma jet axis. The results show that instability amplitudes depend on the frequency and for some frequencies are strongly asymmetrical. This phenomenon affects the mean distribution of instabilities in a different way depending on frequency range and distance from plasma torch nozzle.
Trvalý link: http://hdl.handle.net/11104/0214244