Marine propeller cavitation occurs when high rotational blade velocity accelerates flow across the suction face, causing local static pressure to drop below the saturated vapor pressure of seawater (p_v). The water locally vaporizes into micro-cavitation bubbles. When these vapor bubbles are swept downstream into higher-pressure regions, they implode violently within microseconds, generating localized micro-jets and shockwaves exceeding 1 GPa that cause severe structural blade pitting and acoustic noise.