/usr/share/cgnstools/primitive.cnv is in cgns-convert 3.3.0-5.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 | # 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
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