Anomalous noise distribution of the interface in two-phase fluid flow.

摘要: The fluctuations of the advancing interface observed in experiments on two-phase fluid flow porous media are investigated using several evaluation techniques. We find that amplitudes \ensuremath{\eta} these distributed according to a power law form P(\ensuremath{\eta})\ensuremath{\sim}${\mathrm{\ensuremath{\eta}}}^{\mathrm{\ensuremath{-}}(\mathrm{\ensuremath{\mu}}+1)}$, with \ensuremath{\mu}\ensuremath{\approxeq}2.7. Our results together recent model anomalous roughening suggest plausible explanation for nonuniversal values exponents experiment flow.