摘要
当两种不同密度和扩散速率的纳米流体混合时,会发生三重扩散和对流现象。本文主要目的是比较对流水平板上二次混合的三重扩散纳米流体的流体力学和流体磁学。文中建立的模型其他新特征考虑了可变导热系数和非线性热辐射热通量。该问题由一组方程组成,借助MATLAB bvp4c包进行求解。为了使参数与相关剖面的影响可视化,给出了图形说明,并利用图表来评估关键参数变化是如何影响相关场及其相应的物理量。通过对盐1和盐2的Dufour参数的多次估计,可以推断出流体流速的波动。验证了流体动力流相对于流体磁流的优势。此外,还将特定情景下已发表的结果与当前研究结果进行了比较。
The triple diffusion amalgamated with the convection occurs when the fluid flow is under the influence of two different densities with varied diffusion rates.The primary objective of this analysis is to compare hydrodynamic and hydromagnetic nanofluid flow over a horizontally placed plate for triple diffusive systems with mixed convection of quadratic nature.The additional novel features of the envisaged model are the consideration of variable thermal conductivity and nonlinear thermal radiative heat flux.The problem is comprised of a set of equations that are solved with the aid of the MATLAB bvp4c package.To visualize the impacts of the parameters with associated profiles,graphical illustrations are given.Graphs are utilized to evaluate how significant changes in the key parameters impact the related fields and their corresponding physical quantities.It is inferred that liquid velocity surges for numerous estimates of the Dufour parameter of salt 1 and salt 2.It is verified that the hydrodynamic flow is dominant in comparison to hydromagnetic.In addition,a comparison between the published results in a specific scenario and the current research is also included.An excellent correlation is attained.
基金
Project(23UQU4310392DSR003)supported by the Deanship of Scientific Research of Umm Al-Qura University,Saudi Arabia。
关键词
三重扩散纳米流体
二次混合对流
可变导热系数
非线性热辐射
triple diffusive nanofluid flow
quadratic mixed convection
variable thermal conductivity
nonlinear thermal radiation