CFX Launcher --> Tool --> Command
cfx5cmds -read -def mydef.def -text mydef.txt (transforms def file into text file)
Then Edit mydef.txt file
THERMAL CONDUCTIVITY:
Option = Orthotropic Cartesian Components
Thermal Conductivity X Component = 1200[W m^-1 K^-1]
Thermal Conductivity Y Component = 1200 [W m^-1 K^-1]
Thermal Conductivity Z Component = 10 [W m^-1 K^-1]
Now apply modified txt file to def file
cfx5cmds -write -def mydef.def -text mydef.txt
