## ##Surface Skin-Friction Direction from Oil-Flow Visualization ## CASE B'.S1 (*) for qualitative use only ## ##* Note: Some of the surface oil flow direction data obtained ##for case B was obtained while the tunnel was running in an off ##design condition (i.e., the boundary layer was 50% thicker ##due to dirty inlet screens) and is denoted as case B'. ##This data should be used qualitatively only, and ##"should not" be used in conjunction with the Cp data or ##the LDV data which was obtained using design conditions. ## --------------------- ## X(mm) X(in) B(deg) 53.3 2.1 22 99.1 3.9 19 162.6 6.4 16 223.5 8.8 15.4 292.1 11.5 14.0 358.1 14.1 15.0 436.9 17.2 12.4 500.4 19.7 9.7 551.2 21.7 9.2 12.7 0.5 32.6 22.9 0.9 30.9 53.3 2.1 22.4 100.3 3.95 19.7 142.2 5.6 17.6 180.3 7.1 17.1 228.6 9.0 14.5 269.2 10.6 13.8 321.3 12.65 12.4 467.4 18.4 11.1 551.2 21.7 7.9 26.7 1.05 29.0 49.5 1.95 22.8 105.4 4.15 19.2 175.3 6.9 16.2 236.2 9.3 14.7 281.9 11.1 14.4 348.0 13.7 14.4 411.5 16.2 14.0 490.2 19.3 10.4 576.6 22.7 6.6 660.4 26 5.0