Calcolatore Velocità Tubo di Pitot — Formula

Pitot Tube

A pitot tube measures airspeed by comparing stagnation (total) and static pressure.

Formula

v = sqrt(2 (P_total - P_static) / rho)

where the difference (P_total - P_static) is the dynamic pressure q = 0.5 rho v^2.

Pitot tubes are standard instruments on aircraft for measuring airspeed.

Esempio Risolto

Aircraft: P_total = 102 000 Pa, P_static = 101 325 Pa, rho = 1.225 kg/m3.

  1. dP = 102000 - 101325 = 675 Pa
  2. v = sqrt(2 * 675 / 1.225)
  3. v = sqrt(1102)
  4. v = 33.2 m/s = 119.5 km/h