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1924•Journal of the Society of Mechanical EngineersOpen access

ON THE MEASUREMENT OF VARIABLE AIR SPEED WITH PITOT-STATIC TUBE

Koroku Wada

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Abstract

The effect of acceleration of Pitot-tube relative to fluid, in which it is immersed, affecting the velocity determination was investigated theoretically. The correction factor, to be multiplied to the velocity obtained neglecting acceleration, is [numerical formula], where [numerical formula] and I_n(x) is the modified Bessel Function of the First Kind. Condition that no correction is necessary within the error of 1% is [numerical formula]

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The effect of acceleration of Pitot-tube relative to fluid, in which it is immersed, affecting the velocity determination was investigated theoretically. The correction factor, to be multiplied to the velocity obtained neglecting acceleration, is [numerical formula], where [numerical formula] and I_n(x) is the modified Bessel Function of the First Kind. Condition that no correction is necessary within the error of 1% is [numerical formula]

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Available abstract

The effect of acceleration of Pitot-tube relative to fluid, in which it is immersed, affecting the velocity determination was investigated theoretically. The correction factor, to be multiplied to the velocity obtained neglecting acceleration, is [numerical formula], where [numerical formula] and I_n(x) is the modified Bessel Function of the First Kind. Condition that no correction is necessary within the error of 1% is [numerical formula]

Key concepts: Pitot tube, Acceleration, Bessel function, Mechanics, Physics, Mathematics, Variable (mathematics), Relative velocity

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