Hernández Machado, AuroraLacasta Palacio, Ana MaríaMayoral, E.Corvera Poiré, Eugenia2011-07-072011-07-0720031539-3755https://hdl.handle.net/2445/18713A one-sided phase-field model is proposed to study the dynamics of unstable interfaces of Hele-Shaw flows in the high viscosity contrast regime. The corresponding macroscopic equations are obtained by means of an asymptotic expansion from the phase-field model. Numerical integrations of the phase-field model in a rectangular Hele-Shaw cell reproduce finger competition with the final evolution to a steady-state finger.6 p.application/pdfeng(c) The American Physical Society, 2003Dinàmica de fluidsViscositatFluid dynamicsViscosityinfo:eu-repo/semantics/article561750info:eu-repo/semantics/openAccess