Effect of free stream turbulence on local mass transfer from a circular cylinder

摘要

The effect of free stream turbulence on local mass transfer from a circular cylinder is experimentally investigated for free stream Reynolds number from 3.0×10~4 to 8.3×10~4, turbulence intensity from 0.2/100 to 23.7/100 and integral length scale from 0.8 to 6.3 cm. The pattern of mass transfer distribution changes considerably with free stream turbulence. The effect of a splitter plate on local mass transfer is also studied. Information on the flow field near the surface is Obtained form flow visualization using an oil/lampblack mixture.