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TECHNICAL PAPERS

The Compressible Calibration of Miniature Multi-Hole Probes

[+] Author and Article Information
Espen S. Johansen

Department of Mechanical Engineering, Texas A&M University, College Station, TX 77843-3141

Othon K. Rediniotis

Department of Aerospace Engineering, Texas A&M University, College Station, TX 77843-3141

Greg Jones

Flow Modeling and Control Branch, NASA Langley Research Center, Hampton, VA 23681-0001

J. Fluids Eng 123(1), 128-138 (Sep 06, 2000) (11 pages) doi:10.1115/1.1334377 History: Received February 22, 2000; Revised September 06, 2000
Copyright © 2001 by ASME
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References

Figures

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Probe calibration tunnel configuration for 7-hole probe calibration
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Seven-hole probe test envelope, shows Mach and Reynolds number distribution in the calibration database for total pressures of 117, 220, and 414 kPa
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Schematic drawing of typical probe positioning assembly
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Schematic of 7-hole conical tip probe used by NASA Langley (all dimensions in mm)
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Pitch and yaw angle definitions
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Cone and roll angle definitions
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Sector view of a 5-hole probe
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Sector view of a 7-hole probe
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Typical local distribution of calibration point
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Local least-squares interpolation surface with triangulation in the b1-b2 plane
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Triangulation scheme in the b1-b2 plane
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High angle b1 and b2 coefficients versus Mach number for total pressures of 117, 220 and 414 kPa
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High angle b1 and b2 coefficients versus Reynolds/m at discrete Mach number
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High angle At and As coefficients versus Mach number for total pressures of 117, 220, and 414 kPa
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High angle At and As coefficients versus Reynolds/m at discrete Mach numbers
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Exact and predicted pitch and yaw angles for test verification data
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Absolute pitch angle error in degrees. Mean error: 0.151, max error: 1.32, standard deviation: 0.173
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Absolute yaw angle error in degrees. Mean error: 0.0888, max error: 0.291, standard deviation: 0.0742
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Absolute velocity error in percent. Mean error: 0.116, max error: 0.370, standard deviation: 0.0862

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