trying to calculate the dragging force on a structure -- CFD Online Discussion Forums

June 17, 2014, 19:36	trying to calculate the dragging force on a structure	#1
pothead New Member J Join Date: Jun 2014 Posts: 1 Rep Power: 0	Hi all ! I am trying to calculate the dragging force on a structure subject to a 70m/s wind. The geometry is quite simple : a cylinder base (1m diameter/0.2m height) and a hemispherical top (D=1m). Reynolds is above 1E6 so I'm wondering what is the ideal settings in CFX in order to get a good and accurate result. By hand, the dragging force is around 800N but the FEA calculus gives 300N. What should I do to get close to the real force (pressure) on the structure ? Thanks. J.

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