free surface

Questions

What does free surface mean?

The surface of a fluid that is subject to zero parallel shear stress (e.g. the interface between two homogeneous fluids).

How to pronounce free surface

1. Open the pronunciation page — Open the Speakur entry for “free surface”.
2. Read the phonetic spelling — Read the IPA spelling () so you know which sounds to aim for.
3. Play the audio — Click Play to hear reference audio for “free surface”.
4. Repeat and practice — Say “free surface” aloud, matching stress and vowels until it feels natural.