Floating Point Exception - Oscilating Forces -- CFD Online Discussion Forums

February 18, 2013, 03:20

Floating Point Exception - Oscilating Forces

A.Wendy

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Andreas Wendy

Join Date: Aug 2012

Posts: 73

Rep Power: 13

Hi everybody,

i have two problems. Currently i am working on the simulation of an gyrocopter including autorotation but i got some strange problems:
when I calculate the forces/moments on my profile they are oscillating.

in the link below you find the complete cases for a static rotation and one for the autorotation added. when i run the auto rotation case my forces are increasing extremely and i have no idea why....

i am using pimpleDyMFoam and the GGI of OF 1.6 extend.

maybe some of you have ab idea.

best wishes

andy

static RPM: http://ubuntuone.com/7Eivib5v0AIGBE1pKjxk05
autorotation: http://ubuntuone.com/4Ay27nAKiikV7Uh7Gqem5c

Attached Files

	controlDict.txt (2.1 KB, 5 views)
	dynamicMeshDict.txt (1.6 KB, 4 views)
	dynamicMeshDict_staticRPM.txt (1.2 KB, 4 views)
	fvSchemes.txt (1.4 KB, 3 views)
	fvSolution.txt (2.2 KB, 3 views)

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