We want to measure the fluid velocity using a pitot tube plus#
So to do that were the pressure a plus half times the density of air, times of philosophy going past a squared that stands Teoh times gravitational, constant times, the hoat. Correction to the velocity is (1.164)1/2=1.079, So here we want apply Bernoulli's equation to both sides. This is a correction on the square of velocity. The pitot probe, uncorrected for compressibility, is likely to indicate 300 m/s which is in excess of the true true value of 278 m/s by The sonic speed at ambient condition is given by
An aeroplane flies at 1000 km/hr at an altitude where the pressure p is 50 kN/m2 and the density ρ=0.6 kg/m 2.Ĭalculate the pitot speed indicator reading if it is ignoring the compressibility effects. Chand, eurasia publishing house,eighth revised) V= velocity of fluid without considering compressibility
Where V 0= velocity of fluid with considering compressibility V 2 / 2 + g z + P / q = c o n s t a n t M 4 +.) A pitot tube determines the velocity of a fluid by measuring the fluids stagnation pressure In this demonstration stagnation pressure is measured with a manometer The height differential in the. It works on the principal of Bernoulli theorem as:. Together with a manometer and measurement of the static pressure it is used to determine the velocity of the fluid flow. This ensures that the pressure in the tube is the sum of the static pressure and the dynamic pressure imposed by the flow. It consists of a tube having right angled bend which is placed in moving body of fluid with the opening of the bent part directed upstream. It is a device invented by Henri Pitot in the eighteen century which is used to measure the fluid flow velocity.
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