Mixture field of multi-field solvers #79

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1. lecorrejm

   added

   enhancementNew feature or requestNew feature or request

   on Apr 29, 2025
2. lecorrejm

   assigned

   jasonjan2003

   on Apr 29, 2025
3. lecorrejm commented on May 6, 2025

   

   lecorrejm

   on May 6, 2025

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   This is somehow similar to the film field (= wave + base film) in the four-field solver. More generally, a liquid field could be added to the three and four-field solver. Then, a generic mixture field could be applied to any of the multi-field solver.
4. jasonjan2003

   added 4 commits that reference this issue on Jul 14, 2025

   feat(#79): create abstractMixture class

   fb08d30

   feat(#79): add ThreeField.Liquid to combine drop and film

   a4dd209

   feat(#79): start implementing ThreeFieldSolver Mixture

   6d60b6e

   feat(#79): implement threefield solver-specific mixture for solver.solve

   b513d95
5. jasonjan2003 commented on Jul 15, 2025

   

   jasonjan2003

   on Jul 15, 2025

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   An AbstractMixture is now the superclass of Mixture.Mixture and the new ThreeField.Mixture. Many of the Mixture.Mixture methods are transfrerred over to AbstractMixture, but @lecorrejm should take a look if there are mistakes in the process. ThreeField.Mixture is constructed using a Mixture.Mixture and a new class, ThreeField.Liquid. ThreeField.Liquid acts as an interface that represents the film and drop fields in the ThreeFieldSolver.
6. lecorrejm commented on Jul 16, 2025

   

   lecorrejm

   on Jul 16, 2025

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   Thanks! I will have a look the week of August 4.
   Note that the same Mixture class should also be available for the twofluid and fourfield solvers.
7. lecorrejm commented on Oct 10, 2025

   

   lecorrejm

   on Oct 10, 2025

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   Main comment: At this point, there should not be any dependency between the new mixture field and the solver solution.
   Hence, the solver should still rely on the solution from the mixture solver when needed. Use of this new mixture field in the solution will be done later case by case.
   Additional comments:

   • New commit updated the new liquid class within the three-field solver. Correct definitions of VF, U, H, etc have been included.
   • The flowrate of the liquid in the three-field solver at node 1 is initialized with a a very large value.
   • The new abstract mixture class does not need to include properties and methods that are exclusively related to the mixture solver, that is, Properties: TRELAX, relaxtevap, relaxtcond, Methods: RELAXEVAP, RELAXTCOND, WWALL, MINT, MINTEVAP, MINTCOND, MTRANSV, WALEVAPRATIO, MWALEVAP, MTOT, HINT, HINTEAP, HINTCOND, HWALEVAP.
8. jasonjan2003

   added a commit that references this issue on Oct 14, 2025

   fix(#79): move mixture solver-specific properties and methods back to…

   ...

   3401fe1
9. jasonjan2003 commented on Oct 14, 2025

   

   jasonjan2003

   on Oct 14, 2025

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   • The flowrate of the liquid in the three-field solver at node 1 is initialized with a a very large value.

   Is this something that should be changed?
10. jasonjan2003

    added 2 commits that reference this issue on Oct 14, 2025

    fix(#79): revert use of tfSolver.mixture to re-eval initialization issue

    87c87ce

    fix(#79): move mixture for multi-field solver to smix property

    a45fc0c
11. jasonjan2003

    added the

    Feature

    issue type on Aug 31, 2026