Bioconvective Casson fluid flow over a slender needle under magnetic dipole influence: Coupled thermal and chemical transport analysis

Precise control of non-Newtonian biofluids is essential in biomedical and thermal engineering applications, where heat and mass transfer must be carefully regulated. This study explores the steady two-dimensional bioconvective flow of a Casson fluid over a slender needle under a localized magnetic dipole, incorporating the effects of thermal radiation, Joule heating, and homogeneous chemical reactions. The governing nonlinear equations are transformed via similarity techniques and solved numerically using a Runge–Kutta method with a shooting scheme, with accuracy ensured through convergence and mesh-independence tests. Results reveal that magnetic interactions profoundly alter the flow, enhancing surface shear…

• UA
  Umm Al-Qura University