Details

Autor(en) / Beteiligte

• Kaziz, S.
• Ben Ahmed, R.
• Helali, H.
• Gazzah, H.
• Charrada, K.

Titel

Contribution to the numerical study of turbulence in high intensity discharge lamps

Ist Teil von

• Physics of plasmas, 2011-07, Vol.18 (7), p.073502-073502-9

Ort / Verlag

United States: American Institute of Physics

Erscheinungsjahr

2011

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• We present in this paper a comparison between results obtained with a laminar and turbulent models for high-pressure mercury arc. The two models are based on the resolution of bidimensional time-dependent equations by a semi-implicit finite-element code. The numerical computation of turbulent model is solved with large eddy simulation model; this approach takes into account the various scales of turbulence by a filtering method on each scale. The results show the quantitative influence of turbulence on the flow fields and also the difference between laminar and turbulent effects on the dynamic thermal behaviour and on the characteristics of the discharge.