Abstract
Numerical dispersion is estimated using multiquadric radial basis function (MQRBF) method in an incompressible viscous flow in a mildly curved channel with constant curvature where the solute undergoes irreversible heterogeneous reactions with the absorbing boundaries. The MQRBF scheme is used to solve the convection–diffusion equation to study the dispersion phenomena in a mildly curved channel with constant curvature. The influence of the combined effect of the Peclet number, absorption parameter and curvature ratios on longitudinal dispersion is discussed. It is also observed that the concentration distribution is more skewed with increasing curvature. The shape parameter is tuned with increase of the curvature, Peclet number and absorption parameter, and MQRBF scheme performs well for low Peclet numbers.
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