Reference Frame - Mesh Motion
Hello experts,
I am working with AcuSolve tutorial Acu-5000 and Acu 5001. which are using the same model, difference is one is steady state/reference frame and other is transient/mesh motion.
I am wondering which one should i use to represent the rotation of fan-blades? reference frame or mesh motion? and why?
(image below)
Thank in advance!
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They both represent rotation. The reference frame is for steady-state, and the mesh rotation is for transient. While in some cases the steady-state assumption with reference frame is very good, typically the accuracy with mesh motion will be better. Of course, the transient simulation takes much more run-time, so that is the trade-off - increased accuracy at the cost of longer runtime.
Very detail answer.
Thank you very much! /emoticons/default_biggrin.png' srcset='/emoticons/biggrin@2x.png 2x' title=':D' width='20' />
They both represent rotation. The reference frame is for steady-state, and the mesh rotation is for transient. While in some cases the steady-state assumption with reference frame is very good, typically the accuracy with mesh motion will be better. Of course, the transient simulation takes much more run-time, so that is the trade-off - increased accuracy at the cost of longer runtime.