EXPERIMENTAL LOW-SPEED AERODYNAMIC CHARACTERISTICS OF THE WORTMANN FX 66-S-196 V1 AIRFOIL
Keywords:Aerodynamics, Structures, Design
AbstractAn investigation to obtain the two-dimensional aerodynamic characteristics of the FS 66-5-196 V1 airfoil was performed. Pressure distributions have been measured at Reynolds numbers ranging fron 0.5 x 10^6 to 2.0 x 10^6 at angles of attack between -6 and +20 degrees. An oil film technique and stethoscope investigations were used to determine, respectively, the position of the laminar separation bubble and transition. The measurements were supported by potential-flow calculations (with and without walls) using a two-dimensional panel method. Comparison of the calculated results in both cases shows that the tunnel wall interference is srnall at the given tunnel width-over-chord ratio of 4.6. The rneasured results have been conpared with those given in the Stuttgarter Profilkatalog.
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