The thermal features of nanoparticles have a dynamic role in medical, electrical, optical, built-up, and energy area, and compromise the potential to report the lower thermal conductivities established in conventional heat transport fluids. These specimens of nanofluids emphasize the engineers and investigators to progress newfangled approaches and methodologies in the heat transport field. Here, this notion elaborates the concept of nanoparticles for dual solutions by considering the influence of nanoparticles mass flux theory with an activation energy in Carreau fluid flow. The magnetite nanoparticles are reported subject to mixed convection in stagnation region. The heat transport aspects are conferred via thermal radiation, non-uniform heat sink-source, convective phenomenon, and Joule heating. Additionally, the chemical reaction is discussed. The apposite alterations altered the non-linear system of partial differential equations into non-linear ODEs. The achieved system of non-linear ODEs is elucidated numerically exploiting bvp4c methodology. Furthermore, for the confirmation of bvp4c technique, comparison tables are organized in this work which ensure the correctness of our numerical approach. The graphs of temperature, concentration, and velocity fields are formed to scrutinize the influence of diverse influential parameters and conferred. Enhancing behavior of the velocity field is reported for increasing estimations of the local Wessinberg number for both solutions. Additionally, the temperature field has conflicting influence for magnetic parameter and Biot number on both solutions. The skin friction coefficient is an increasing function of the local Wessinberg number.

纳米粒子的热学特性在医学，电学，光学，化学组成和能量领域具有动态作用，并损害了报告常规传热流体中较低的热导率的潜力。这些纳米流体的标本强调了工程师和研究人员在传热领域中发展了新型方法和方法论。在这里，该概念通过考虑纳米颗粒质量通量理论和Carreau流体流动中的活化能的影响，阐述了用于双重溶液的纳米颗粒的概念。据报道，磁铁矿纳米颗粒在停滞区域内受到混合对流。传热方面是通过热辐射，不均匀的散热源，对流现象和焦耳热来实现的。另外，讨论了化学反应。适当的更改将偏微分方程的非线性系统更改为非线性ODE。利用bvp4c方法对所实现的非线性ODE系统进行了数值分析。此外，为了确认bvp4c技术，在此工作中组织了比较表，以确保我们数值方法的正确性。形成温度，浓度和速度场图以详细研究各种影响参数的影响并赋予其。报告了速度场的增强行为，以增加对这两种解决方案的当地韦辛伯格数的估计。另外，温度场对两种解决方案的磁参数和比奥数具有冲突的影响。皮肤摩擦系数是当地韦森伯格数的递增函数。