Steady-state transition boiling on thin wires in liquid nitrogen. The role of Taylor wavelength

Experimental Study of Boiling Phenomena of Liquid Nitrogen Around a Thin Wire Heater in Open Bath and Inside Capillary Tubes

“…At 0 , it can be found that the vapor bubble, as shown in Figure 6(a)(1), is oscillating slightly in the capillary tube and is very hard to escape. As the heat flux increases, the vapor bubble gradually expands and splits into two vapor bubbles, as shown in Figure 6(a) (2). The movement of the vapor bubble in the capillary tube at 0 is due to the displacement force [11] and the vapor bubble only escapes from one end of the capillary tube.…”

“…They also found that the liquid-vapor interface of the vapor film around the thin wire heater did not follow the typical sine type and the thickness of the vapor film around the thin wire heater was very thin. Later, Duluc et al [2,3] pointed out that the length of the vapor film was a multiple of the Taylor wavelength l T and proposed a model to explain the discontinuous branches in the mixed boiling region and the influence of the thermal inertia of the thin wire heater on transient boiling was also experimentally investigated. Sakurai et al [4] studied the transition from non-boiling regime to film boiling regime in liquid nitrogen on a 1.2-mm-diameter thin wire heater by exponentially increasing heat fluxes, and the explosive-like heterogeneous spontaneous nucleation (HSN) was also confirmed in their investigation.…”