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首页> 外文期刊>Applied Mathematical Modelling >Electro-thermo-capillary-convection in a square layer of dielectric liquid subjected to a strong unipolar injection
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Electro-thermo-capillary-convection in a square layer of dielectric liquid subjected to a strong unipolar injection

机译：经受强单极注入的介电液体方形层中的电热毛细管对流

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In this paper, the effect electric field on the flow induced by the combined buoyancy and thermocapillary forces is carried out. Calculations are performed for a strong unipolar injection (C=10) and different values of Marangoni number (-10000 = Ma = 10000), thermal Rayleigh number (5000 = Ra = 50,000) and electric Rayleigh number (0 = T = 800). The Prandtl number (Pr) and the mobility parameter (M) are fixed at 116.6 and 49, respectively. These values correspond to the Silicone oil used as working liquid several practical applications. The full set of coupled equations: Navier-Stokes, Electro-hydrodynamic (EHD) and heat transfer equations are directly solved using stream function-vorticity formalism. Obtained results show that the electric forces can control the thermocapillary instabilities. According to the intensity and the direction of the applied electric forces, it is demonstrated that these instabilities can be accentuated, attenuated, or even completely eliminated. (C) 2018 Elsevier Inc. All rights reserved.
机译：本文研究了电场对浮力和热毛细作用力共同作用下的流动的影响。对强单极注入（C = 10）和不同的Marangoni数（-10000 <= Ma <= 10000），热瑞利数（5000 <= Ra <= 50,000）和电瑞利数（0 <= T <= 800）。普朗特数（Pr）和迁移率参数（M）分别固定为116.6和49。这些值对应于几种实际应用中用作工作液体的硅油。完整的耦合方程组：Navier-Stokes，电液动力学（EHD）和热传递方程式可使用流函数-涡度形式主义直接求解。所得结果表明，电力可以控制热毛细管的不稳定性。根据施加的力的强度和方向，证明了这些不稳定性可以被加重，减弱甚至完全消除。 （C）2018 Elsevier Inc.保留所有权利。

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