id author title date pages extension mime words sentence flesch summary cache txt sj13902275w Hesham Abdel Ghafar Othman Bekhit Experimental Study of Absolute Instability over a Rotating Disk 2007 .txt text/plain 286 13 47 Ensemble averages conditioned on the air pulses revealed wave packets that evolved in time and space. The lower amplitude produced wave packets with linear amplitude characteristics that agreed with linear-theory wall-normal eigenfunction distributions and spatial growth rates. cache/sj13902275w.txt txt/sj13902275w.txt