Investigating the MHD flow of hybrid nanofluid Al2O3 - CuO with brownian motion between two parallel plates using RBF

In this research is investigated flow of hybrid nanofluid of the Al 2 O 3 and CuO based on water fluid and electromagnetic force between parallel plates with a heat source. In this model effect of Brownian motion on the effective thermal conductivity also is considered. The innovation in the present paper is that the meshless method of the radial basis function (RBF) for is used for governing equationsthe desired geometry. In this method, without using pre-determined meshing to discretize the domain, it turns the problem into a system of algebraic equations by only using the set of scattered points in the domain and its boundaries. The ability of the RBF method is shown in comparing it with the numerical method finite element method (FEM) to solve this problem, which is in good agreement. In order to evaluate the convergence analysis of the method, error estimations are made by a residual function denoted. The results represent that the vertical velocity of the hybrid nanofluid in Ha = 0 is increased compared to the vertical velocity of the mono nanofluid, but in Ha = 8 is not a significant difference in velocity. Furthermore, the thickness of the thermal boundary layer of the hybrid nanofluid decreases. Also, the horizontal velocity of the hybrid nanofluid decreases with the increase of squeeze number untile η < 0.5 but for η > 0.5 the results are the opposite which leads to the formation of the backflow phenomenon. Moreover, the velocity components of the hybrid nanofluid remain unaffected by an increasing heat source parameter while increasing the thermal boundary layer thickness.