## ##Surface Skin-Friction Direction from Oil-Flow Visualization ## CASE B'.S2 (*) 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) 8.9 0.35 66 31.8 1.25 50 55.9 2.2 43 6.3 0.25 67 40.6 1.6 48 245.1 9.65 25 342.9 13.5 19.5 14.0 0.55 65 57.1 2.25 49 132.1 5.2 37.50 226.1 8.9 21.50