I'm new to elmer and want to use it for calculations related to my PhD thesis.
The goal is to get the torque, flux linkage, the flux density in the air gap and in an arbitrary arc around the center for a (switched) reluctance motor.
I followed the instruction given here:
https://www.researchgate.net/profile/Pa ... -Elmer.pdf
..and tried some snippet from:
viewtopic.php?f=3&t=4901&sid=96acf489df ... 0f51aedc40
But I ran into some problems. The magnetic flux density and the flux lines are looking wired.
You can see the distortion of the potential in the following picture (red spot in the air gap at 12 o'clock and the curly flux lines in the rotor at 8 o'clock ). I wonder if the reason for the distortion may be related to the warning I got : "WARNING:: InterpolateMeshToMesh: Points not found: 4 (found 812)".
Code: Select all
ComputeChange: NS (ITER=17) (NRM,RELC): ( 4384.3816 0.15521086E-05 ) :: mgdyn2d
ComputeChange: NS (ITER=18) (NRM,RELC): ( 4384.3880 0.14565775E-05 ) :: mgdyn2d
ComputeChange: NS (ITER=19) (NRM,RELC): ( 4384.3881 0.25179950E-07 ) :: mgdyn2d
ComputeChange: NS (ITER=1) (NRM,RELC): ( 0.63325128 2.0000000 ) :: mgdyn2dpost
ComputeChange: NS (ITER=2) (NRM,RELC): ( 0.65572497 0.34870602E-01 ) :: mgdyn2dpost
MAIN:
MAIN: -------------------------------------
MAIN: Time: 2/4 3.3333333333400001E-003
MAIN: Estimated time left: 14.7 seconds
MAIN: -------------------------------------
MAIN:
WARNING:: InterpolateMeshToMesh: Points not found: 4 (found 812)
ComputeChange: NS (ITER=1) (NRM,RELC): ( 59932.260 1.7273248 ) :: mgdyn2d
ComputeChange: NS (ITER=2) (NRM,RELC): ( 61190.413 0.20774846E-01 ) :: mgdyn2d
For other FEA-software (FLUX) it is recommended to mesh the air gap accordingly to the desired movement of the rotor in the simulation. Does something like this holds for elmer as well?
Stefan