Vapor explosion in a mixture of two liquids

Dynamics of a vapor shell around a heated particle in a liquid

“…2 it follows that the value of the maximum vapor pressure calculated for the model of [3] is underestimated. This is due to the negative contribution of the terms containing heat fluxes to the right side of Eq.…”

“…3 gives time dependences of the heat fluxes from the particle into the vapor, from the vapor to the bubble surface, and from the bubble surface into the liquid in the absence of a temperature drop in the liquid (T ∞ = T s ) at t = 0. The results of calculations using the given model (under the assumption that λ g = const) are shown by a solid curve, and results of calculations using the model [3] are shown by a dashed curve [instead of formula (4) for T d , formula (5) was used]. As noted above, the specification of a linear temperature profile leads to a change in the heat transfer process (Fig.…”

“…This leads to the explosive boiling of the liquid around the particles and a sharp pressure rise in the system. An attempt to determine the magnitude of the acoustic impulse in the case of film boiling on spherical particles was undertaken in [3]. That paper, however, contains a number of inaccuracies.…”

“…A comparison of the results of calculations using the model of [3] and the given model is given below. The results were obtained for a copper particle of radius d = 0.2 mm at a temperature T 0 = 1356 K in water (p 0 = 10 5 Pa).…”

“…It should be noted that numerical investigation of the above system of equations is rather labor-consuming. An attempt to simplify this system was undertaken in [3]. The particle temperature was considered uniform, and the heat-influx equation for the particle was therefore converted to the ordinary differential equation…”