Explosive regime of the development of instability leading to vapor-film collapse on a heated solid hemispherical surface

A study visualizing the collapse of vapor bubbles in a subcooled pool

“…The Marangoni influences the behavior of bubble behavior in two aspects: Firstly, since the surface tension increases with the decrease in temperature for water, the forces induced by Marangoni effect would hold the vapor bubble pressed to the heating surface preventing detachment [31][32]. Moreover, the Marangoni convection around the vapor bubble could accelerate the instability of the bubble surface and may be one of reasons for the bubble collapse [27,33].…”

Investigation of Characteristic Features of Critical Heat Transfer under Conditions of Boiling of Subcooled Hydrocarbons in a Close-to-Critical Pressure Range

“…The boundary values of ρu for water and hydrocarbons are different. According to Pavlov and Zakharov [12], these two regions for water are defined by the criterion (1, 20) thermocouples located on the external part of the perimeter, in bends, and at the coil inlet and outlet; (2,19) thermocouples located on the internal part of the perimeter, in bends, and at the coil inlet and outlet; (3,7,11,15) thermocouples located on the internal generatrix of the coil perimeter; (4,8,12,16) thermocouples located on the external generatrix of the coil perimeter; (5,9,13,18) thermocouples located on the bottom generatrix of the coil perimeter; (6,10,14,17) thermocouples located on the top generatrix of the perimeter of the experimental section; (21, 22) thermocouples located on the straight portion of the heated section.…”

“…Although numerous papers were devoted to the investigation of heat transfer and its crisis under conditions of liquid boiling in a pipe [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19], this phenomenon has not yet been fully studied.…”

The behavior of a vapor film on a highly superheated surface immersed in subcooled water

“…The enhancement (increase in height) of standing waves may be caused by the effect of the phase-shifted reactive force of the vapor flow evaporating from the wave crests [25]. This flow arises in the case of intense nonequilibrium evaporation of liquid from the interface [26].…”