a variance of forces in FLUENT

March 2, 2006, 04:11

HI,does anybody find a variance that the lift(drag) value we back-calculated by the lift(drag) curve sometimes isn't the same as that Fluent reports (Reprot\Forces).

regarding.

March 2, 2006, 06:13

after the calculation when using the report forces panel you shoul use the right vector directions in X and Y coordinates. if your flow has an angle with the body these value must not be eg X=1 Y=0 for drag. you should input them aligned with the flow direction

March 5, 2006, 02:18

well, i follow what u said. and the problem does exist after i set the right vector directions. maybe it is a bug in FLUENT?

thanx you very much.

March 2, 2006, 04:11	a variance of forces in FLUENT	#1
changkiang Guest Posts: n/a	HI,does anybody find a variance that the lift(drag) value we back-calculated by the lift(drag) curve sometimes isn't the same as that Fluent reports (Reprot\Forces). regarding.

March 2, 2006, 06:13	Re: a variance of forces in FLUENT	#2
Erdem Guest Posts: n/a	after the calculation when using the report forces panel you shoul use the right vector directions in X and Y coordinates. if your flow has an angle with the body these value must not be eg X=1 Y=0 for drag. you should input them aligned with the flow direction

March 5, 2006, 02:18	Re: a variance of forces in FLUENT	#3
changkiang Guest Posts: n/a	well, i follow what u said. and the problem does exist after i set the right vector directions. maybe it is a bug in FLUENT? thanx you very much.

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