Prediction of Behavior for an Ultrasonically Driven Bubble in Sulfuric Acid Solutions by a Set of Solutions of Navier-Stokes Equations

나비아-스톡스 방정식의 해에 의한 황산용액 내에서 초음파에 의해 가진되는 기포의 거동 예측

A set of solutions of the Navier-Stokes equation for the gas inside a spherical bubble with heat transfer through the bubble wall permits to predict correctly behavior of an ultrasonically driven bubble in aqueous solutions of sulfuric acid. Calculation results of the minimum velocity of bubble wall and the peak temperature and pressure are in excellent agreement with the observed ones. Further the calculated bubble radius-time curve displays alternating pattern of bubble motion as observed in experiment.