Expression of Uncertainty in Experimental Hydrodynamics with Application to Instrument Calibration

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TypeTechnical Report
Series titleTechnical Report
AbstractThis is a summary for the general guidelines proposed to the 26th ITTC (2008) to evaluate and express uncertainty in measurements, in naval architecture experimental measurements, offshore technology testing, and experimental hydrodynamics. Traditionally, up to now-2008, ITTC adopted Uncertainty Analysis (UA) procedures that were based on AIAA methodologies. However, due to pressure from international laboratories, new UA procedures based on the ISO (1995) are proposed for the evaluation of uncertainties in experimental hydrodynamics. The information in this report shows the main steps for how the ISO (1995) guidelines are used to calculate uncertainties in experimental hydrodynamics and ocean technology tank testing. The guidelines provided in this report are also applicable to the evaluation of uncertainties associated with conceptual design, set up of actual experiments, methods of measurements, instruments calibrations, Data Acquisition Systems (DAS), and reporting. Example applications include calibration of instruments (a commercial vertical gyroscope in roll), characterization of flow speed in a water tunnel, and uncertainties in standard captive model testing (standard resistance tests).
Publication date
PublisherNational Research Council Canada. Institute for Ocean Technology
PlaceSt. John's, NL
AffiliationNRC Institute for Ocean Technology; National Research Council Canada
Peer reviewedNo
NRC number6460
NPARC number8895844
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Record identifiereedca365-ff29-4f56-ac4e-1817609f5c34
Record created2009-04-22
Record modified2016-10-03
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