Dynamics and instabilities of the droplet on the liquid substrate under the action of the gravity force have been investigated. The problem is studied numerically. The longwave approximation is applied. By heating from below, the action of the gravity can prevent the rupture of the liquid layer. The diagram of regimes in the plane "the Bond number the Marangoni number"has been constructed. By heating from above, the gravity force flattens the droplet and suppresses the oscillations.
The influence of the gravity force on instabilities of the floating droplet
Viviani A.;
2022
Abstract
Dynamics and instabilities of the droplet on the liquid substrate under the action of the gravity force have been investigated. The problem is studied numerically. The longwave approximation is applied. By heating from below, the action of the gravity can prevent the rupture of the liquid layer. The diagram of regimes in the plane "the Bond number the Marangoni number"has been constructed. By heating from above, the gravity force flattens the droplet and suppresses the oscillations.File in questo prodotto:
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