Detailed Uncertainty Analysis for Ares I Ascent Aerodynamics Wind Tunnel Database | Zendy

Michael J. Hemsch | Zendy; Heather Houlden | Zendy; Jeremy Hanke | Zendy; Eric Walker | Zendy

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Detailed Uncertainty Analysis for Ares I Ascent Aerodynamics Wind Tunnel Database

Author(s) -

Michael J. Hemsch,

Heather Houlden,

Jeremy Hanke,

Eric Walker

Publication year - 2008

Publication title -

nasa sti repository (national aeronautics and space administration)

Language(s) - English

Resource type - Conference proceedings

DOI - 10.2514/6.2008-4259

Subject(s) - aerodynamics , aerospace engineering , wind tunnel , computer science , aeronautics , marine engineering , environmental science , engineering

A detailed uncertainty analysis for the Ares I ascent aero 6-DOF wind tunnel database is described. While the database itself is determined using only the test results for the latest configuration, the data used for the uncertainty analysis comes from four tests on two different configurations at the Boeing Polysonic Wind Tunnel in St. Louis and the Unitary Plan Wind Tunnel at NASA Langley Research Center. Four major error sources are considered: (1) systematic errors from the balance calibration curve fits and model + balance installation, (2) run-to-run repeatability, (3) boundary-layer transition fixing, and (4) tunnel-to-tunnel reproducibility.

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