This study explores the issue of micropolar fluids and heat transfer in a hybrid nanofluid through a moving thin needle with prescribed surface heat flux. Here, SWCNT and MWCNT are referred to as hybrid nanoparticles, and Engine oil and Refrigerant-134A as a working fluid. Similarity transformation is implemented to acquire the similarity equations, and then numerically solved by utilizing the shooting technique bvp4c function. Hybrid nanofluids enhance the heat transfer coefficient when their concentrations and nanoparticle volumes increase. The graphical results are made for different involved parameters such as material parameter, micro-gyration parameter, moving parameter, and index parameter. It is found that the heat transfer and friction drag are improved for hybrid nanofluid than nanofluids. It is further seen that increase in the size of the needle axial and angular velocity and temperature distribution diminishes.

这项研究探讨了通过移动的细针并具有规定的表面热通量，混合纳米流体中微极性流体和传热的问题。在此，SWCNT和MWCNT被称为杂化纳米颗粒，而机油和Refrigerant-134A被称为工作流体。进行相似度变换以获取相似度方程，然后利用射击技术bvp4c函数进行数值求解。当杂化纳米流体的浓度和纳米颗粒体积增加时，它们会提高传热系数。针对不同的涉及参数（例如材料参数，微旋转参数，运动参数和分度参数）做出图形结果。已经发现，与纳米流体相比，混合纳米流体的传热和摩擦阻力得到了改善。