平板先端形状が境界層の成長に与える影響

抄録

In this paper, the effect of leading edge shape on developing of the boundary layer on a flat plate have been investigated by the measurement of boundary layer velocity distribution at the mainstream velocity 5m/s and 14m/s. The leading edge shapes are elliptical shapes (2:1, 4:1, 8:1), sharp edge (30 deg.) and right angle. As the result, the elliptical shapes (4:1, 8:1) produced the laminar boundary layer. In addition, sharp edge formed the turbulent boundary layer, regardless of the mainstream velocity. On the other hand, the elliptical shape (2:1) took the different boundary layer by the mainstream velocity.