TY - EJOU AU - Zabadal, J.R. AU - Bodmann, B. AU - Ribeiro, V. G. AU - Silveira, A. AU - Silveira, S. TI - Bäcklund Transformations: a Link Between Diffusion Models and Hydrodynamic Equations T2 - Computer Modeling in Engineering \& Sciences PY - 2014 VL - 103 IS - 4 SN - 1526-1506 AB - This work presents a new analytical method to transform exact solutions of linear diffusion equations into exact ones for nonlinear advection-diffusion models. The proposed formulation, based on Bäcklund transformations, is employed to obtain velocity fields for the unsteady two-dimensional Helmholtz equation, starting from analytical solutions of a heat conduction type model. KW - exact solutions KW - nonlinear partial differential equations KW - Navier- Stokes equation KW - Helmholtz equation KW - Bäcklund transformation KW - linearization without approximations KW - diffusion model in pressure field KW - vector field plots KW - symbolical packages KW - low time processing DO - 10.3970/cmes.2014.103.215