Fr.: pression de son
The periodic fluctuation above and below atmospheric pressure created by an oscillating body which provides the → sound power. Instantaneous sound pressure is the peak value of air pressure.
Fr.: pression de stagnation
standard temperature and pressure (STP)
damâ o fešâr-e estândé
Fr.: conditions normales de température et de pression
1) The most commonly used definition is temperature of 273.15 K (0 °C) and
pressure of 1 → atmosphere.
Fr.: pression statique
In → fluid mechanics, the → pressure felt by an object suspended in a → fluid and moving with it. This pressure is called static because the object is not moving relative to the fluid. See also → dynamic pressure.
fešâr-e garmâyi (#)
Fr.: pression thermale
The ordinary pressure in a gas that is due to motions of particles and can be attributed to the object's → temperature.
Fr.: pression totale
Fr.: pression dynamique