Numerical study for heat transfer for laminar conic-shaped flame impinging on a flat surface
D.A. Slastnaya1,2, M.Yu. Hrebtov1,2, R.I. Mullyadzhanov1,2, V.M. Dulin1,2
1Kutateladze Institute of Thermophysics SB RAS, Novosibirsk, Russia
2Novosibirsk State University, Novosibirsk, Russia
Keywords: direct numerical simulation, laminar flame impinging on a flat surface, laminarSMOKE, OpenFoam, GRI-MECH 3.0
Abstract
The paper presents the results for simulation of heat transfer between the laminar axisymmetric methane/air flame and a cold flat surface; simulation was performed for the distance between the burner exit and the flat surface equal to the one, two, and three exit calibers. The study is based on the direct numerical simulation with a detailed kinetic mechanism with the GRI-MECH 3.0 code. Simulation for the configuration with the distance of three calibers demonstrated a significant reduction in heat flux nearby the front point; this is due to a local recirculation zone between the flame cone and the flat surface. This phenomena can explain the experiment-observed reduction in heart transfer.
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