中文摘要：

在30mm×375min二维有机玻璃通道中研究CTAC／NaSal表面活性剂湍流减阻特性，并用Hoyt尺度放大方法对所测数据在不同管径条件下进行关联拟合。研究表明，表面活性剂溶液发生湍流减阻的临界温度和临界雷诺数均随其质量分数的增大而增大。质量比为1：1的CTAC／NaSal溶液，最大无关减阻率约为60％。在完全减阻区域内，Hoyt尺度放大方法对于CTAC／NaSal表面活性剂溶液具有很好的放大效果。

英文摘要：

Turbulent drag reducing characteristics of CTAC/NaSal aqueous solution （CTAC had same mass concentration with NaSal.） were investigated in a two-dimensional channel of 30 mm height and 375 mm width, which was made of transparent acrylic resin. The measured drag reduction data were scaled up by using Hoyt＇s scaling method and were compared with other reported drag reduction data for different channel sizes. It could be concluded that both the critical temperature and critical Reynolds number at which turbulent drag reduction of surfactant solution occurred increased with concentration. There was a maximum drag-reduction about 60% for the measured CTAC/NaSal solutions. The Hoyt＇s scale-up method correlated well the experimental data for different chan- nel heights when the SIS （shearing induced structure） was established very well in surfactant solutions.