dissimilarities in melt pool dimension – Finite Element Analysis (FEA) engineering

I am trying to simulate the LDED process and using Goldak heat source. the inp file is attached herewith. I have used the following as input :

**Material Deposition
*PARAMETER
beadWidth = 4.5
beadHeight = 1
**
*TABLE COLLECTION, NAME=”ABQ_AM.MaterialDeposition”
*PARAMETER TABLE, TYPE= “ABQ_AM_MaterialDeposition”
“LDED.PrintHeadDepositionTrajectory”,”Bead”
**
*PARAMETER TABLE, TYPE= “ABQ_AM_MaterialDeposition_Bead”
“Z”, , , 0.,”Below”
**
*PARAMETER TABLE, TYPE= “ABQ_AM_MaterialDeposition_Advanced”
“Full”,0.0,0.0,0.01,,,
**————————————————
**Moving heat source
*PARAMETER
laserSpotRadius = 2.4
penetrationDepth = 1.2
GoldakParamA = laserSpotRadius
GoldakParamB = penetrationDepth
GoldakParamCF = laserSpotRadius
GoldakParamCR = laserSpotRadius
GoldakParamFF = 2*(GoldakParamCF)/(GoldakParamCR+GoldakParamCF)
GoldakParamFR = 2*(GoldakParamCR)/(GoldakParamCR+GoldakParamCF)

but in simulation I am not getting the same dimension in the melt pool. I have used the temperature limit 25 (lowest) and 1405(highest) to represent the melt pool.