摘要
本文研究了Cattaneo-Christov模型(C-C模型)和对流边界条件下的二次热辐射对三元混合纳米流体(TiO_(2)-SiO_(2)-MoS_(2)/煤油)流过旋转圆盘过程的影响,并研究了Darcy-Forchheimer多孔介质和吸入/注射的影响。比较分析了三元混合纳米流体(TiO_(2)-SiO_(2)-MoS_(2)/煤油)与混合纳米流体(TiO2-SiO2/煤油)。通过von Karman转换将偏微分方程集合转变为常微分方程,并通过MATLAB中的bvp4c函数对其求解。图表结果反映了径向、切向速度和传热速度的变化。讨论了各种参数的影响,包括磁场、Forchheimer数、孔隙率参数、滑移参数、辐射参数、热弛豫、混合对流、吸入/注射、Biot数、发热/热吸收、体积分数。发现较高的辐射值和热弛豫参数可以提高传热速率。本研究将对使用纳米流体的学科领域具有一定的参考价值,如运输过程、旋转的机械系统、协同旋转的涡轮系统、增强型油回收系统、医疗等。
In the present article,authors communicated the impact of the Cattaneo-Christov model(C-C model)and quadratic thermal radiation with convective boundary conditions on ternary hybrid nanofluid(TiO_(2)-SiO_(2)s-MoS_(2)/kerosene oil)flow over a rotating disk.The Darcy-Forchheimer porous medium and suction/injection influence were also considered.A comparative analysis of ternary hybrid nanofluid(TiO_(2)-SiO_(2)-MoS_(2)/kerosene oil)and hybrid nanofluid(TiO_(2)-SiO_(2)/kerosene oil)was also presented.The set of partial differential equations was converted into the ordinary differential equations by von Karman’s transformation and solved by the bvp4c function in MATLAB.The graphs were also sketched to show variations in radial and tangential velocity and heat transfer.The ascendancy of the various parameters:magnetic field,Forchheimer number,porosity parameter,slip parameter,radiation parameter,thermal relaxation,mixed convection,suction/injection,Biot number,heat source/sink,and volume fraction was discussed in detail.Higher values of radiation and thermal relaxation parameter increase the heat transmission rate.The results of this study will be helpful to many transportation processes,rotating machinery systems,co-rotating turbine systems,enhanced oil recovery systems,medical fields that utilize nanofluids,and so on.
