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Simulation numérique de l’effet de champ électrique sur la stabilité des flammes de diffusion

Abstract : The application of electric field is known to have the ability to improve significantly the flame stability. In this regard, a mathematical approach to model combustion in the presence of an electric field was developed. The Navier-Stokes equations along with transport equations for charged species and the electric potential Poisson’s equation are solved. A main situation, that concerns the stabilization of diffusion flames by applying a direct or alternating electric field, is studied. The results show that the presence of the electric field improves the flame stabilization. The magnitude of this improvement depends on the intensity and polarity of the applied voltage. If the applied voltage is alternating, an additional factor, which is the frequency of the electric current, influences also the extent of the flame stabilization improvement. An interpretation of the stabilization mechanisms is proposed.
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Submitted on : Thursday, October 4, 2012 - 11:08:24 AM
Last modification on : Thursday, November 28, 2019 - 3:46:40 AM
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  • HAL Id : tel-00738391, version 1

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Memdouh Belhi. Simulation numérique de l’effet de champ électrique sur la stabilité des flammes de diffusion. Autre [cond-mat.other]. INSA de Rouen, 2012. Français. ⟨NNT : 2012ISAM0007⟩. ⟨tel-00738391⟩

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