Numerical Study of MHD Third-Grade Fluid Flow through an Inclined Channel with Ohmic Heating under Fuzzy Environment

The uncertainties or fuzziness occurs due to insufficient knowledge, experimental error, operating conditions, and parameters that give the imprecise information. In this article, we discuss combined effects of gravitational magnetic for both crisp fuzzy cases in three basic flow problems (namely, Couette flow, Poiseuille Couette–Poiseuille flow) a third-grade fluid over an inclined channel with heat transfer. dimensionless governing equations boundary conditions are converted into coupled differential (FDEs). fuzzified forms along solved by employing numerical technique bvp4c built MATLAB cases, which is very efficient has less computational cost. first case, proposed analyzed environment, while second they discussed environment help ? -cut approach, controls uncertainty. It observed sensitive better situation. Using triangular numbers (TFNs), left, right, mid values velocity temperature profile presented various involved tabular form. For validation, present results compared existing some special viz., found be good agreement.