The only thing that really needs to be added to the comments from Electric Sky is that LSS is proportional to temperature (38.94 x square root of absolute temp). So if temp goes up or down, LSS does the same. As air passes through a shock wave the temperature increases, so the LSS increases. As air goes through an expansion wave the temperature and LSS both decrease.
Last edited by Keith.Williams.; 25th January 2004 at 23:41.