Use of surface elements SURF152 for heat flux load
I’m trying to apply a heat flux on a circle shaped area with the use of SURF152 elements via APDL command snipptes.
I apply SURF152 elements, select the nodes attached to selected SURF elements and select only the nodes within the circle radius around WPCS aka Y_p coordinate.
The code I use is subsequent following:
/prep7 ! Enter into /prep7 as ET and ESURF are valid only in /PREP7
et,101,152 ! Create a new element type for SURF152
cmsel,s,surface1 ! Select nodes on a face via Face named selection
type,101 ! Set the element type as 101
esurf ! Create surface effect elements on the selected nodes
allsel,all ! Select everything back
/solu ! Re-enter /SOLU
wpcs,-1,0 ! WP @ GLOBAL ORIGIN
wpof,,Y_P ! OFFSET WP ALONG ITS Y AXIS (i.e. provide current position of center of circle along Y axis)
cswp,11,1 ! DEFINE Cylindrical COORDINATE SYSTEM @ WP ORIGIN
esel,s,ename,,152 ! Select SURF152 elements
sfed,all,,hflux ! Delete old hflux if any
nsle ! Select nodes attached to selected SURF elements
nsel,r,loc,x,0,Radius ! Select nodes within radius of circle, 0.005m
csys,0 ! Set CSYS back to global
esln,r ! Select SURF elements attached to the nodes within the circle
sfe,all,,hflux,,H_FLUX ! Apply hflux based on your calculation at the said time
And my other thermal BC's:
Does anyone know why the model isn’t working?
I’d be glad for any suggestions.
Best regards Holly F.