“…where the dimensional elastic deformation at any point (X, Y ) is defined as [18] The main improvement made to the numerical formulations reported elsewhere [2,7,4,13] is in the approximation of the Couette flow term (in equation ( 1)). In all the previous formulations, either a central difference [2,7] or a backwards difference [4,13] approximation has been employed. The former improves the numerical accuracy, whereas the latter enhances the stability of the solution.…”