This study focused on Cu-Al₂O₃/water hybrid nanofluid to address the issue related to mixed convection stagnation-point flow and heat transfer over a permeable stretching/shrinking sheet with the magnetic field and heat source/sink effects. The governing equations of the problem are initially reduced into similarity equations by utilising similarity transformations, prior to being solved numerically using the function bvp4c in MATLAB. As a result, dual (upper and lower branches) solutions were obtained in opposing and assisting flow regions. The outcomes derived from stability analysis indicated that the upper branch solution was stable, while unstable for the lower branch. Additionally, the heat transfer rate of base fluid (water) was higher than the hybrid nanofluid.

这项研究集中在Cu-Al ₂ O ₃ /水杂化纳米流体上，以解决与对流停滞点流动和具有磁场和热源/吸收效应的可渗透拉伸/收缩片材上的传热有关的问题。在使用MATLAB中的函数bvp4c进行数值求解之前，首先利用相似性转换将问题的控制方程式简化为相似性方程式。结果，在相对和辅助流动区域中获得了双重（上部和下部分支）解决方案。稳定性分析得出的结果表明，上部分支解决方案是稳定的，而下部分支则不稳定。另外，基础流体（水）的传热速率高于杂化纳米流体。