Single bubble dynamics on a superhydrophilic surface with artificial nucleation sites

Effect of nanostructures on heat transfer coefficient of an evaporating meniscus

“…Recent efforts using micro/nanostructured and hierarchical structured surfaces to enhance heat transfer coefficient (HTC) and CHF of boiling experiments have resulted in enhanced CHF on the order of 200-313 W/cm 2 [1,[3][4][5][6][7][8][9][10][11][12][13][14]. This enhancement in CHF can be attributed to a variety of mechanisms, including increased nucleation site densities [1,5,15], elongated contact line [7,16], enhanced micro-convection around nucleated bubbles [4,17,18], increased bubble departure frequency [19], and enhanced microlayer evaporation via a strong wicking effect [3,9,13,14,[20][21][22].…”

Influence of heater thermal capacity on bubble dynamics and heat transfer in nucleate pool boiling

“…(10), contact angle plays an important role on the bubble growth process and microlayer under the growing bubbles. Zhao et al [14], as well as Nam et al [17], studied numerically this effect in detail. The present study, however, focuses on the influence of heater thermal capacity, so only a constant apparent contact angle, i.e.…”

“…Mann et al [8] simulated the influence of heat conduction in the wall, of which the wall thermal conductivity was set to the values of copper, stainless steel and a ceramic material. Only moderate influence was observed, caused by the following effects partly compensating: the local heat flux decreases on the solid wall with lower thermal conductivities, while, on the other hand, lower [17] further studied the effect of varying contact angle on the thermal response of the solid during nucleate pool boiling. It was shown that the heat transfer coefficient increases very weakly with increasing contact angle, while thicker surface shows slightly larger effect of contact angle on heat transfer coefficient.…”

Bubble dynamics and heat transfer on a wettability patterned surface

“…Basu et al [24] found out that nucleation density is related to contact angle and wall super heat for sub-cooled flow boiling. The relationship between contact angle and departure diameter has been explained in many other articles [23,27,28]. Bubble interaction has also been intensively investigated [20,22,25].…”

“…Research [20][21][22][23][24][25][26][27][28] has been conducted on the topic of bubble behavior analysis, which provides references for our study. Generally speaking, bubble behavior includes nucleation, growth, departure and interaction.…”