System of Units

MFIX-Exa adopts the International System of Units (SI). Simulations have to be set up accordingly. In the following table we provide a list of some of the physical quantities we can specify in the input file and their correspondent units.

Physical quantity	MFIX-Exa SI unit
amount of substance	mole [\(mol\)]
length	meter [\(m\)]
mass	kilogram [\(kg\)]
time	second [\(s\)]
force	Newton [\(N\)]
temperature	Kelvin [\(K\)]
pressure	Pascal [\(Pa\)]
energy	Joule [\(J\)]
power	Watt [\(W\)]
density	[\(kg \cdot m^{-3}\)]
velocity	[\(m \cdot s^{-1}\)]
dynamic viscosity	[\(Pa \cdot s\)]
diffusivity	[\(m^2 \cdot s^{-1}\)]
specific heat capacity	[\(J \cdot kg^{-1} \cdot K^{-1}\)]
thermal conductivity	[\(W \cdot m^{-1} \cdot K^{-1}\)]
spring coefficient	[\(N \cdot m^{-1}\)]
molecular weight	[\(kg \cdot mol^{-1}\)]
heat of formation	[\(J \cdot kg^{-1}\)]
chemical reaction rate	[\(mol \cdot m^{-3} \cdot s^{-1}\)]