The Complex Structure of Wave Fields in Fluids

On results of continuous groups analysis the fundamental set of governing equations for density, momentum, temperature and concentrations was selected for deep investigations. For linearized sets complete solutions satis- fying the compatibility condition were constructed. Set of complete solutions includes regular perturbed func- tions describing waves and singular perturbed functions corresponding to fine flow components. All flow com- ponents were visualized inside internal wave fields by high resolving schlieren instruments in the laboratory tank.