Self-similar patterns of subsatellites formation at the capillary breakup of viscous jets

Capillary Hydraulic Jump in a Viscous Jet

“…In [5], instabilities of the self-similar Stokes solution were observed in the experiments on the capillary jet breakup of highly viscous liquids. Those instabilities could not be explained by the theory proposed in [11].…”

“…The breakup of the thread in between the pre-drops is characterized by complicated dynamics [5]. Firstly, nonlinear waves form at the well-formed self-similar Stokes solution.…”

“…The numerical solution of the system of Eqs. (2.1), (2.2), (2.4) was carried out by the finite difference method on an eight-point implicit scheme (for more on this, see [5]). Below, when presenting the results, the time was counted from the moment of jet break t * .…”

“…Modeling the capillary breakup of viscous fluid jets is an important task for many technical applications [1][2][3][4][5][6][7][8][12][13][14][15][16]. One of them is a liquid droplet radiator designed to remove low-grade heat from new-generation space power systems.…”

“…The regularities of the forced capillary disintegration of jets of such liquids were considered in [2], where the dependence of the sizes of the main and satellite drops on the wave number of the initiating decay of the perturbation at different viscosity values was obtained. However, the results of experimental studies indicate that the capillary disintegration of highly viscous jets may be accompanied by the formation of not only satellite drops, but also subsatellites of small size [3][4][5]. One main drop may account for several subsatellites.…”