THE BEHAVIOR OF BUBBLES IN BUECHE MODEL FLUIDS

The nonlinear oscillation of a spherical gas bubble in polymer solutio ns was theoretically analyzed. Using the rheological equation of Buech e model fluid, the equation of motion and the pressure equation for a bubble are derived. According to the numerical calculations, the effec ts of rheological properties and initial radius of the bubble on the b ubble radius-time history, pressure at the bubble wall, critical and e quilibrium radii of the bubble, as well as pressure distribution in li quid are discussed.