ABSTRACT The present examination aims to explore the endothermic/exothermic chemical reactions impact on the oblique stagnation point (OSP) flow of Casson nanofluid through a stretching cylinder. Further, thermophoretic particle deposition (TPD) is considered in the concentration equation. Using the proper similarity modifications, the governing partial differential equations (PDEs) are transformed into ordinary differential equations (ODEs). The resultant O‐D‐Es and boundary conditions (BCs) are then computationally solved employing the shooting approach and the Runge‐Kutta‐Felberg fourth fifth (RKF‐4 th fifth) order procedure. Graphically illustrated the influences of major dimensionless parameters on their respective profiles. Furthermore, significant engineering coefficients are also discussed. Streamline patterns for various parameters are also studied. Important outcomes are in the case of endothermic, as the chemical reaction parameter rises, it causes a drop in the temperature profile and contrary behaviour is viewed in the case of exothermic. The maximum rate of heat transfer is seen at up to 6.33% for the case when and and the maximum rate of mass transfer is seen up to 0.68% for the case when and . As the thermophoretic parameter rises, the concentration profile declines. Raising the curvature parameter causes an escalation in the temperature and velocity profiles.
Vinutha et al. (2026) studied this question.