THE INFLUENCE OF SECONDARY BOILING ON THE DYNAMICS OF A JET FORMING DURING COLLAPSE OF A VAPOR BUBBLE INDUCED BY LASER HEATING OF A LIQUID
A single act of boiling up of a liquid subcooled to the saturation temperature is experimentally investigated when it is exposed to continuous laser radiation transmitted to the working volume by means of a thin optical fiber. It is shown that a vapor bubble formed nerar the end of the optical fiber upon collapse forms a hot cumulative jet, around which the phenomenon of secondary boiling is observed. The secondary vapor inclusion formed around the jet has an extended shape, moves and evolves along with it. The significant unfluence of this inclusion on the dynamics of the jet propagation has been demonstrates.