When the plane was heated , observation showed that the shape factor increased from 1 . 5 to 2 . 6 ; the mean velocity profile departed from the law of the wall ; the inertial subrange in the energy spectra curves disappeared ; the intermittent phenomenon occurred 發(fā)現(xiàn)在加熱的情況下,邊界層的形狀因子由1 . 5上升至2 . 6時均速度廓線中的平衡湍流層消失以及速度能譜中慣性子區(qū)消失等變化。