非定常三维自由对流传热传质流动嵌入周期性渗透率和恒定热通量和质量通量的多孔介质

IF 1.2 Q2 MATHEMATICS, APPLIED
N. Jain, D. Chaudhary, D. K. Vijay
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引用次数: 1

摘要

本文分析了具有吸力速度随时间变化和横向正弦渗透率的多孔介质中垂直板的非定常三维自由对流传热传质结合流动。不稳定是由于吸力速度随时间的变化引起的。首先通过非相似变换将具有边界条件的控制方程转化为无因次形式,然后用级数展开法求解得到的耦合非线性偏微分方程组。用图形显示了不同参数对速度(u)、横流速度(w)、温度(θ)、浓度(C)、表面摩擦(τx)和努塞尔数(Nu)的影响。我们观察到皮肤摩擦在空气中(Pr=0.71)比在水中(Pr=7)高,但努塞尔数的结果不同。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Unsteady Three Dimensional Free Convection Heat and Mass Transfer Flow Embedded in a Porous Medium with Periodic Permeability and Constant Heat and Mass Flux
We analyse an unsteady three dimensional free convection flow with combined heat and mass transfer over a vertical plate embedded in a porous medium with time dependent suction velocity and transverse sinusoidal permeability. The unsteadiness is due to the time dependent suction velocity. The governing equations with the boundary conditions are first converted into dimensionless form by non-similar transformations and then resulting system of coupled non-linear partial differential equations are solved by series expansion method. The effects of different parameters are shown on velocity (u), cross flow velocity (w), temperature (θ), Concentration (C), Skin friction (τx) and Nusselt number (Nu) graphically. We observe that skin friction is higher in air (Pr=0.71) than in water (Pr=7) but result differs for Nusselt number.
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来源期刊
Journal of Applied Mathematics
Journal of Applied Mathematics MATHEMATICS, APPLIED-
CiteScore
2.70
自引率
0.00%
发文量
58
审稿时长
3.2 months
期刊介绍: Journal of Applied Mathematics is a refereed journal devoted to the publication of original research papers and review articles in all areas of applied, computational, and industrial mathematics.
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