How the force derived on a 2D model? -- CFD Online Discussion Forums

October 10, 2010, 05:25	How the force derived on a 2D model?	#1
rikio Senior Member Rikio Join Date: Mar 2009 Location: SH, China Posts: 182 Blog Entries: 1 Rep Power: 17	I used to think that the force is based on the existing 2 dimensions of the 2D model and one unit in the other dimension. If the model is built in mm, the third dimension is 1mm. And if in m, it is 1m. But a model of a 1000mm x 50mm in a 20m/s wind field gets a relatively big drag force, that makes me doubting the derivation.

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