Electro-osmosis of viscoelastic fluids and prediction of electro-elastic flow instabilities in a cross slot using a finite-volume method

► A finite volume method is used to simulate electro-osmotic flows of viscoelastic fluids. ► The UCM and the Phan-Thien/Tanner models are used. ► Different physical models for electric charge density distribution are assumed. ► Electro-elastic flow instabilities are predicted in a cross-slot flow. ► An analytical solution for fully developed electro-osmosis channel flow is presented.