plotting force magnitude -- CFD Online Discussion Forums

June 3, 2008, 04:00	plotting force magnitude	#1
force Guest Posts: n/a	When i plot force magnitude on a wall surface, i get a range of force value from 0 to some positive number and there is no negative number plotted. Is it not possible to plot negative value of forces or is it because Star-cd can't extract negative value of aerodynamic force? I think a force pushing on the surface should be positive value and a force lifting the surface should be negative value and negative value of force should exist to represent effect of suction due to low pressure in high velocity regions.

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