LOCALIZED TRAVELING WAVES IN BINARY-FLUID CONVECTION

Using the two-dimensional MAC scheme, direct numerical simulations wer e made to examine the double localized traveling wave (DLTW) state in horizontal layers of binary fluid mixtures heated from below described by the full hydrodynamic equations. Convection near the saddle-node p oint develops modulation traveling waves and eventually evolves into D LTW. The agreement between numerical and experimental results indicate s the significance of our direct simulation using full hydrodynamic eq uations.