BUBBLE DYNAMICS ON THE EVOLVING BUBBLE FORMED FROM THE DROPLET AT THESUPERHEAT LIMIT

The violent oscillation of the bubble formed from the evaporated dropl et at the superheat limit has been investigated analytically and numer ically. In this study, we have formulated a general bubble dynamics mo del, which is suitable for the oscillating bubble in an incompressible liquid medium. One of distinct features of this model is that the vel ocity and temperature distribution of the gas inside the bubble are ob tained by solving continuity and energy equations for the gas analytic ally. With uniform density and temperature distribution approximation, the calculated values of the far held pressure signal from the evolvi ng bubble formed from the fully evaporated droplet are in good agreeme nt with experimental results.