{{Unreferenced, date=June 2019, bot=noref (GreenC bot)
A hydrodynamic seal is a type of
mechanical seal. A hydrodynamic seals uses a dynamic rotor with grooves that act as a pump and create an air film that the opposing sealing surface will ride on. A hydrodynamic seal performs better than hydrostatic seals by providing greater film stiffness, lower leakage and lower lift off speeds. Hydrodynamic seals have a variety of applications in multiple industries. there are a large number of various groove designs that have been proposed and tested.
Types of Hydrodynamic Grooves
* Spiral Groove
* Wave
* V Grooves
* U Grooves
* Double V Grooves
Seals (mechanical)