# convert conserved variables to primitive

# Density -> Density
# MomentumX -> VelocityX
# MomentumY -> VelocityY
# MomentumZ -> VelocityZ
# EnergyStagnationDensity -> Pressure

VelocityX = MomentumX / Density
VelocityY = MomentumY / Density
VelocityZ = MomentumZ / Density
qq = VelocityX^2 + VelocityY^2 + VelocityZ^2
Pressure = (gamma-1) * (EnergyStagnationDensity - 0.5*Density*qq)

# add primitive variables
    
+ VelocityX,VelocityY,VelocityZ,Pressure

# remove conserved variables

- MomentumX,MomentumY,MomentumZ,EnergyStagnationDensity

