[sahil_chaddha]

I am solving a coupled moving heat source-diffusion problem using SOLID227. I have a simple cuboid geometry with heat source moving along the center. For moving heat source boundary condition, I used this plugin Moving Heat Source.

But I needed to solve the thermal-diffusion model. So I used the following APDL in geometry and solution.

Geometry :

ET,matid, SOLID227
! for thermal-diffusion DOF
KEYOPT,1,matid, 100010
MP,DXX,matid,0.2166
MP,DYY,matid,0.2166
MP,DZZ,matid,0.2166

Transient Thermal Solution:

allsel,,node
*get,numNode,node,,count
*get,currNode,node,,num,min
*get,xmax,node,,mxloc,x
*get,xmin,node,,mnloc,x

lambda=0.002
alpha_c = 0.02
cem_c = 6.67

! assign couboid nodes as alternate layers of concentration.
*do,i,1,numNode
x = nx(currNode)
region = mod(nint(x/lambda),2)
*if,region,eq,0,then
ic,currNode,conc,cem_c
*else
ic,currNode,conc,alpha_c
*endif
currNode = ndnext(currNode)
*enddo

!named-selection for boundaries
sf,boundary_faces,dflux,0

allsel

Ea = 237207.4
R = 8.314
tb,migr,1,,,0
tbdata,1,Ea/R
tbdata,2,0
tbdata,3,0
tbdata,4,0
tbdata,7,0

But I am not able to get any results. And no helpful errors are shown in solver output. Can someone please help me what's wrong in the above setup?