Convective Flows of a Colloidal Suspension in a Hele-Shaw Cell under Vertical Vibrations

Numerical simulation of convection of a colloidal binary mixture in a Hele-Shaw cell under vertical vibrations of finite amplitude has been carried out. The boundary of convective instability in a modulated gravity field is found. Bifurcation diagrams are constructed and the concentration distributions of nanoparticles corresponding to various solutions are analyzed. Thermal vibration convective flows are studied in the case of positive thermal diffusion of nanoparticles and their gravitational stratification. It is shown that vibrations, depending on the frequency, can both increase the intensity of the convective flow and weaken it.