This article concerns the study of forced convection flow, heat and mass transfer near a moving slender needle using the Buongiorno nanofluid model. Soret and Dufour impacts are analyzed to study the thermo-diffusion and diffusion-thermo impacts on the flow. The governing boundary layer equations are turned into a dimensionless one with the assistance of similarity transformations. After that those ordinary differential equations are computed by a bvp4c package in MATLAB program. Subsequently, the influences of relevant variables on the coefficient of skin friction, heat and mass transfer rate, momentum, temperature and concentration fields are depicted through the graphical approach and have been interpreted in detail. Extracted outcomes are also authenticated with the existing articles. The multiple solutions are noticed to show up in particular ranges of several parameters. The stability of solutions is conducted to find which of the solution gained is linearly stable. The results indicate that the solution for the upper branch is stable, while the solution for the lower branch is unstable. The outcomes also revealed that the percentage of heat and mass transmission rate diminishes by 40.43% and 31.41%, respectively, with the increment in the needle thickness from $b=0.1$ to $b=0.2$.

本文涉及使用Buongiorno纳米流体模型研究细长针头附近的强制对流，传热和传质的问题。分析了Soret和Dufour的影响，以研究热扩散和扩散-热对流动的影响。在相似变换的帮助下，控制边界层方程变为无量纲。之后，这些常微分方程由MATLAB程序中的bvp4c软件包计算。随后，通过图形方法描绘了相关变量对皮肤摩擦系数，传热和传质速率，动量，温度和浓度场的影响，并进行了详细解释。提取的结果也可以通过现有文章进行验证。注意到多个解决方案显示了几个参数的特定范围。进行解的稳定性以发现获得的哪个解是线性稳定的。结果表明，上分支的解是稳定的，而下分支的解是不稳定的。结果还表明，随着针头厚度的增加，传热率和传质率分别降低40.43％和31.41％。$b=0.1$ 至 $b=0.2$。