A Meshless Radial Point Interpolation Method for Solving Fractional Navier–Stokes Equations

Abstract

This paper aims to develop a meshless radial point interpolation (RPI) method for obtaining the numerical solution of fractional Navier–Stokes equations. The proposed RPI method discretizes differential equations into highly nonlinear algebraic equations, which are subsequently solved using a fixed-point method. Furthermore, a comprehensive analysis regarding the effects of spatial and temporal discretization, polynomial order, and fractional order is conducted. These factors’ impacts on the accuracy and efficiency of the solutions are discussed in detail. It can be shown that the meshless RPI method works quite well for solving some benchmark problems accurately.

Keywords

• fractional calculus
• time-fractional incompressible Navier–Stokes equations
• radial point interpolation
• shape parameters
• meshless method