Stable cavitation occurs when bubbles

Stable cavitation occurs when bubbles

• A. Compress with high pressure and decompress with low pressure
• B. Expand and violently collapse
• C. Remain stationary with no motion
• D. Do not form at all

Answer: (A)

When bubbles are in a liquid exposed to an ultrasonic field, the pressure oscillates between high and low phases. In stable cavitation, the bubble doesn’t violently rupture; instead it repeatedly grows and shrinks in response to those pressure changes. It compresses during the high-pressure phase and expands during the low-pressure phase. This regular, non-destructive oscillation is the hallmark of stable cavitation, unlike inertial cavitation where bubbles violently collapse, or scenarios where there’s little to no movement or formation.

When bubbles are in a liquid exposed to an ultrasonic field, the pressure oscillates between high and low phases. In stable cavitation, the bubble doesn’t violently rupture; instead it repeatedly grows and shrinks in response to those pressure changes. It compresses during the high-pressure phase and expands during the low-pressure phase. This regular, non-destructive oscillation is the hallmark of stable cavitation, unlike inertial cavitation where bubbles violently collapse, or scenarios where there’s little to no movement or formation.