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Optimal calibration of directional velocity probes

McParlin, S, Ward, S and Birch, DM (2013) Optimal calibration of directional velocity probes In: 51st AIAA Aerospace Sciences Meeting, 2013-01-07 - 2013-01-10, Grapevine, TX.

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A novel approach has been considered for the formal process of calibrating multiple hole pressure probes for use in wind tunnels. Rather than determining the attitude angles of a probe and subsequently flow angularity for a fixed probe, either by linear interpolation between sample points or through the use of piecewise functional fits, the outputs from the probe are mapped as continuous functions across the angular test space, using a set of sample points derived from Optimal Design of Experiments. This offers the potential of more accurate probe calibrations across a wider range of flow onset angles, with fewer sample points than currently used for the same purpose. Proof-of-concept tests using a five-hole probe have indicated that the approach is viable, while examination of fits to legacy data from prior tests indicates that the approach is easily extendable to probes with an arbitrary number of holes, and to multiple hot-wire installations.

Item Type: Conference or Workshop Item (Conference Paper)
Divisions : Faculty of Engineering and Physical Sciences > Mechanical Engineering Sciences
Authors :
Ward, S
Date : 7 January 2013
DOI : 10.2514/6.2013-45
Contributors :
ContributionNameEmailORCID, A
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 16 Dec 2013 12:42
Last Modified : 06 Jul 2019 05:13

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