← 🌀 Engineering

🌀 Cavitation in Pumps and Propellers

Active bubbles:
Erosion damage:
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🌀 Cavitation in Pumps and Propellers

The simulator visualizes the pressure field around a curved blade profile in real time, showing how accelerating flow lowers local static pressure below the liquid's vapor pressure, triggers bubble nucleation, and carries those bubbles into a higher-pressure zone where they collapse and strike the blade surface.

🔬 What It Demonstrates

The simulator visualizes the pressure field around a curved blade profile in real time, showing how accelerating flow lowers local static pressure below the liquid's vapor pressure, triggers bubble nucleation, and carries those bubbles into a higher-pressure zone where they collapse and strike the blade surface.

🎮 How to Use

Adjust the blade speed or flow velocity slider and watch the color-coded pressure map shift; increase speed until the low-pressure region crosses the vapor-pressure threshold and bubbles begin forming. Toggle a slow-motion collapse view to see an individual bubble's asymmetric collapse and microjet formation, and switch on the damage accumulation overlay to watch simulated pitting build up on the blade surface over many cycles.

💡 Did You Know?

The pressure spike from a single collapsing cavitation microjet can be intense enough to locally exceed the yield strength of hardened steel, yet the affected spot is often smaller than the width of a human hair; it is the relentless repetition of millions of these tiny impacts that eventually pits and erodes even the toughest propeller and pump materials.