Biomedical subjects

AA Nepomnyashchy

Publications and source records attributed to AA Nepomnyashchy.

11 recordsLinked to original sources

PubMed2000

Nonpotential effects in dynamics of fronts between convection patterns

The dynamics of fronts between hexagonal convection patterns and a mechanical equilibrium state are investigated in the cases where the hexagons are stable and the equilibrium is either stable or unstable. The Newell-Whitehead-Segel, equations with additional nonpotential terms are used. The velocity of the domain boundary between two competing convection patterns and the wave number selected in the presence of the front are calculated.

Journal Article↗

PubMed2000

Convection in two-layer systems with an anomalous thermocapillary effect

Recently, it was found that the anomalous thermocapillary effect (the interfacial tension increases with temperature) is typical for various liquid-liquid systems. We consider the combined action of buoyancy and thermocapillary instability mechanisms in systems with an anomalous thermocapillary effect on the interface. The problem is solved in both linear and nonlinear formulations. A special type of oscillatory instability has been found and investigated.

Journal Article↗

PubMed1995