Testing of a standard model in the VTI's large-subsonic wind-tunnel facility to establish users' confidence

Abstract

A necessity to test a standard model testing for establishing confidence in the wind-tunnel flow quality and the validity of the test-data has been recognized in the Experimental Aerodynamics Laboratory of the Military Technical Institute (VTI) in Belgrade. A new-implemented procedure for data quality assurance has been applied to the standard AGARD-B model testing in the VTI's large-subsonic wind-tunnel. Test-data obtained at Mach number 0.4 have been analized and correlated with those of the physically same model performed in the Canadian NAE (today operates as IAR) 5ft trisonic wind-tunnel and the T-38 trisonic wind-tunnel of VTI. Within-facility comparisons and inter-facility correlations of the standard test-data were done to certify an overall reliabilty of the subsonic facility as an initial step in the establishing the confidence prior to a forthcoming customer test.

Keywords

• subsonic wind tunnel
• standard model
• test-data
• inter-facility correlations