Measurement of Angle of Attack Using a Five-Hole Arrow Head Pitot Tube.

Ohta, Hirobumi; Wakamatsu, Naoya

doi:10.2322/jjsass1969.40.464

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2012

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“…Generally, as the probe of ADS, a five-hole pitot tube with a spherical [3][4][5] or pyramidal 6) head is often employed. The head of these types of probes is usually mounted on a long tube.…”

Section: Introductionmentioning

confidence: 99%

Numerical Study of Flow Angles and Mach Number Measurement Using the Surface Pressure of a Supersonic Aircraft with Nose Cone

Fukiba

Tsuboi

Kobayashi

2012

Trans. Japan Soc. Aero. S Sci.

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Numerical simulation of the flow around an air data sensor (ADS), which measures flow angles and Mach numbers using surface pressures on a nose cone, was conducted in this study. Effects of the half-cone angle on the flow angle and Mach number measurements were investigated. Results show that a large half-cone angle achieves high sensitivity of flow angle measurements. Results further demonstrated that a small half-cone angle achieves high-sensitivity of Mach number measurements. To satisfy these conflicting requests, we proposed the use of bi-conic nose cones with two gradients. High sensitivity was achieved for both flow angle measurements and Mach number measurements using this bi-conic nose cone.

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Section: Introductionmentioning

confidence: 99%