抄録
The transfer phenomena of wall turbulence are carried by quasi orderly vortex structure, what is developed from small scale vortex near the wall. How to change the turbulent motion and turbulent transfer by modifying the condition of near wall is important for academic and industry like control of mass and heat transfer. In this study, we analyze empirically how to change mass transfer in cannel turbulence by uniform blowing from the wall, what has porous plate. We use PIV・PLIF simultaneous measurement by mixing fluorescent dye in blown fluid to observe spatial situation of mass transfer in turbulence and analyzed from turbulence statistical point of view. As a result, blowing enhanced fluctuation of disturbance and along with it, coefficient of friction and mass transfer rate ware increased. On the other hand, isotropy of turbulence and turbulent Schmidt number are almost no change.
