D. A. Slastnaya, M. Yu. Hrebtov, R. I. Mullyadzhanov, V. M. Dulin
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Abstract
This article presents the results of numerical simulation of heat transfer between a laminar axisymmetric methane/air flame and a cold flat wall. The simulation is performed for different distances between the nozzle exit and the surface, namely, for one, two, and three burner nozzle diameters. The flow evolution is calculated by the direct numerical simulation method with a detailed kinetic mechanism GRI-MECH 3.0. At a distance of three diameters, there is a significant reduction of heat flux close to the stagnation point due to a local recirculation zone formation between the flame cone and the wall. This phenomenon explains the observed decrease in local heat transfer. The obtained numerical results well agree with the previous flame study by planar optical methods.
期刊介绍：
The journal Thermophysics and Aeromechanics publishes original reports, reviews, and discussions on the following topics: hydrogasdynamics, heat and mass transfer, turbulence, means and methods of aero- and thermophysical experiment, physics of low-temperature plasma, and physical and technical problems of energetics. These topics are the prior fields of investigation at the Institute of Thermophysics and the Institute of Theoretical and Applied Mechanics of the Siberian Branch of the Russian Academy of Sciences (SB RAS), which are the founders of the journal along with SB RAS. This publication promotes an exchange of information between the researchers of Russia and the international scientific community.
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