[Porous Flow] How to use persistent variable Zi for simulations involving more than one fluid component #25118
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batodon
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During single or immiscible multiphase reactive transport simulation involving different fluid components, the geochemistry module provides updated mass fractions to the porous flow module as follows (See the GeoTes simulation, for example):
In miscible multiphase reactive transport flow, when we use the persistent variable Zi instead of the mass fraction, how does the persistent variable gets updated for the different components? Do we use three persistent variables (i.e., Zi, Zii, Ziii), each per component in the porous flow module or one suffices? For example:
Different persistent variable Z for each component:
One persistent variable Z for all components:
I ask because I’m getting the following convergence error when I use a different persistent variable, Z, for each component:
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