<Anyone know why the main tank has a rounded bottom .vs. cone? My <guess was the added mass and difficulty flowing the H2 into the <shuttle overwhelmed the potential lower drag.
The aerodynamics for this object declare that a rounded bottom will not propagate large shock waves as is the case for any sharp turn and subsonically cause 'nasty' vortices. Granted I did not do CFD on it, but that seems to be the general rule. For a cone to really 'work' the object should have a rocket beneath it. This is because the exhaust plume actually "cleans-up" the aerodynamics. Sutton makes mention of this in that particular chapter. J. S. McFarland, Kittyhawk Technologies _______________________________________________ ERPS-list mailing list [EMAIL PROTECTED] http://lists.erps.org/mailman/listinfo/erps-list
