[ASCEND] incompressible EOS clarification

[Vishnu Venugopal]

Hi All,

I am in search of a strong motivation as in why we need an incompressible
model for FPROPS. To my understanding, a Helmoltz method is universally
valid and we are adding an incompressible EOS model to reduce the
associated complexity with Helmholtz EOS. Does that sound right?

Thanks,

Vishnu.

[John Pye]

Hi Vishnu

The incompressible models are useful for cases where limited property
data makes use of more accurate EOSes impossible. For example, look at
the moltensalt.a4c and liquidsodium.a4c models in trunk/models/johnpye.
Another case might be where we seek to validate calculations made
elsewhere with simplifying assumptions. Another case would be where
solving Helmholtz EOS is too costly. Another case would be where phase
changes occurring in a simulation are outside the region of interest,
and simply incur additional computation cost which we are sure, as model
developers, is not required.

We are interest in extending FPROPS to simulations of mixtures including
solutions, VLE, etc. I think that there will be some value in having
incompressible fluid models for those cases, also.

Cheers
JP

Post by Vishnu Venugopal
Hi All,
I am in search of a strong motivation as in why we need an
incompressible model for FPROPS. To my understanding, a Helmoltz
method is universally valid and we are adding an incompressible EOS
model to reduce the associated complexity with Helmholtz EOS. Does
that sound right?
Thanks,
Vishnu.
--
Vishnu Venugopal (PhD Candidate)
Graduate Research Assistant
Department of Aerospace Engineering
Texas A&M University
Ph: 979-739-6982 (Linkedin
<https://www.linkedin.com/in/vishnu-venugopal-b7614a49>)
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