A series of experimental studies on nonlinear wave modulation in deep water are conducted in a super tank (300m*5.2m*5m) at Tainan Hydraulics Laboratory (THL). In particular, the effects of sideband space (dimensionless frequency difference between the carrier wave and the imposed sideband) on long time evolution of nonlinear wave trains are investigated. For initially smaller sideband space, the multiple downshift of the spectrum is observed through a series of wave breaking. The permanent downshift is observed for the sideband space slightly smaller than the most unstable mode. On the contrary, when the sideband space is larger than the most unstable mode, the transient downshift is observed. In the case that the sideband space is greatly larger than the most unstable mode, no downshift is observed even after a series of wave breaking.
|Title of host publication||Advances in Engineering Mechanics Reflections and Outlooks|
|Subtitle of host publication||In Honor of Theodore Y-T Wu|
|Publisher||World Scientific Publishing Co.|
|Number of pages||10|
|ISBN (Print)||9812561447, 9789812561442|
|Publication status||Published - 2005 Jan 1|
All Science Journal Classification (ASJC) codes