Abstract
The influence of wall compliance on the turbulent boundary layer on a flat plate was investigated experimentally by measuring the frictional drag on the wall surface. Test compliant walls are made of silicon resin having Young's modulus of E=1.25〜1.47MPa, density of p_c=1.12×10^3〜1.22×10^3kg/m^3, and the thickness of t=7mm. The mean velocities over the flat plate are U_m=0.1〜0.7m/s (Re=3.6×10^4〜2.5×10^5). The experimental results of the drag measurement show that turbulent frictional drag is reduced by up to 7% for one of the compliant walls tested.
