Stability of bubbles Equilibrium condition Pv -Poo PGe-Re 0 。Small perturbation R=Re(1+e),e<1 case l:partial pressure remains->long time Case ll:mass of gas and temp.remains->rapid Different gas term Case i:R-P equation 3(R+R成 2 AvL dR 2-3nkpGe So right hand side has same sign as e,the stable zone:Stability of bubbles • Equilibrium condition • Small perturbation – case I: partial pressure remains ->long time – Case II: mass of gas and temp. remains ->rapid – Different gas term – Case i: R-P equation – So right hand side has same sign as , the stable zone: