外加磁场和内部热源存在下重力调制对双扩散对流的影响

P. Kiran, S. Manjula, R. Roslan
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引用次数: 3

摘要

本文研究了外加磁场和内部加热条件下的双扩散稳态对流。利用有限振幅金兹堡-朗道模型进行了弱非线性稳定性分析。这个有限的对流振幅是在系统的三阶得到的。假设浮力项有稳定和振荡两部分。第二部分随时间呈正弦变化,使系统以有限振幅δ1和频率ω振动。对δ1和δ对热/质量输运的影响进行了分析和图解。研究表明,重力调制可以有效地控制热/质量输运。进一步发现,内部瑞利数Ri增强了系统的传热,减小了系统的传质。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The Effect of Gravity Modulation on Double Diffusive Convection in the Presence of Applied Magnetic Field and Internal Heat Source
We have investigated the study of double diffusive stationary convection in the presence of applied magnetic field and internal heating. A weakly nonlinear stability analysis has been performed using the finite amplitude Ginzburg-Landau model. This finite amplitude of convection is obtained at third order of the system. It is assumed that the buoyancy term has two parts, steady and oscillatory parts. The second part is varying sinusoidally with time and vibrates the system with finite amplitude δ1 and frequency ω. The effects of δ1 and on heat/mass transports have been analysed and depicted graphically. The studies are established that the heat/mass transports can be controlled effectively by gravity modulation. Further, it is found that internal Rayleigh number Ri is to enhance heat transfer and reduces the mass transfer in the system.
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