for diffusion:
am0momentum 2nd order diffusion coefficient 1.5e4 m2/s
at0temperature 2nd order diffusion coefficient 0.2e4 m2/s
ah0layer thickness 2nd order diffusion coefficient 0.3e4 m2/s
am2momentum 4th order diffusion coefficient 0.0e13 m4/s
at2temperature 4th order diffusion coefficient 1.0e13 m4/s
ah2layer thickness 4th order diffusion coefficient 1.0e13 m4/s