Critical velocity

Critical velocity is the speed that a falling object reaches when gravity and air resistance equalize on the object.

Critical velocity may refer to

• Critical ionization velocity
• speed of sound at the throat of a rocket (otherwise known as throat velocity)
• constant velocity of a superfluid in capillaries which is equivalent to the bandgap width divided by the fermi momentum (otherwise known as critical speed or the Landau critical velocity).
• velocity at which a liquid transitions from subcritical flow to supercritical flow. In normal hydraulics, this velocity can be derived when the Froude number is unity.
• in hydrofracking, the velocity of the fluid flow above which liquid droplets do not accumulate in the well.
• velocity that can be maintained when running at maximal oxygen consumption (VO2 max)
• velocity at which leukocytes switch from rolling to freely flowing in a blood vessel
• The break-up velocity of a rapidly spinning star.
• A racing game made by Bandai Namco.