Effects of the mass and heat transfer of interacting two bubbles on viscous heating at the bubbles wall

Key Points

• To examine how mass and heat transfer effects influence viscous heating at the walls of interacting bubbles in an ultrasonic field.
• Utilized the modified Keller-Miksis equation with the Noble-Abel Stiffened-Gas state equation.
• Calculated viscous heating for interacting bubbles considering mass and heat transfer effects.
• Compared results with scenarios excluding mass and heat transfer effects.
• Mass and heat transfer effects significantly enhance viscous heating due to increased radial pulsations of bubbles.
• With Minnaert resonant frequency driving, viscous heating is lower when mass and heat transfer effects are considered.
• Bubble interactions generally suppress pulsations, reducing heating effects, particularly in smaller bubbles.