How can I simulate a gas flow in hyperworks CFD based on real gas model?

Hi all,

I want to simulate a gas (hydrogen) flow in a nozzle in high pressure (700 bar).

In this pressure, Hydrogen shows a big deviation to the ideal gas and therefore should be simulated as a real gas rather than ideal gas.

How can I implement that?

I am using Hyperworks CFD as the pre-processor and AcuSolve as the solver.

Many thanks for your helf in advanced.

regards,

Hassan