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IDProjectCategoryView StatusLast Update
0003664OpenFOAMBugpublic2021-04-15 12:05
Reportersjohn2Assigned Towill 
PrioritynormalSeveritytweakReproducibilityalways
Status resolvedResolutionfixed 
PlatformGNU/LinuxOSUbuntuOS Version15.04
Product Versiondev 
Fixed in Versiondev 
Summary0003664: Two issues with multiphaseEulerFoam solver
DescriptionIn file

OpenFOAM-dev/applications/solvers/multiphase/multiphaseEulerFoam/interfacialCompositionModels/interfaceCompositionModels/saturated/saturated.C

saturated model is valid only for one species, as defined in the constructor 83, hence in functions Yf and YfPrime the else statements are not required
If more than one species is specified then solver will fail at the saturated contructor

In file

OpenFOAM-dev/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/PhaseSystems/InterfaceCompositionPhaseChangePhaseSystem/InterfaceCompositionPhaseChangePhaseSystem.C

Line 406 - *(*dmidtfSps_[pair])[specie]*phase.Y(specie)

should be replaced by + *(*dmidtfSps_[pair])[specie]*phase.Y(specie), the negative sign is already accounted for in the declaration of
*(*dmidtfSps_[pair])[specie] = - phase.rho()*KD; (line 611)

Same procedure used for dmdtfs () and dmidts ()

All lines numbers are according to the dev version in the github account
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Activities

will

2021-04-15 12:05

manager   ~0011997

You are right about the sign, though this method is actually never used, so it doesn't affect anything. Corrected by https://github.com/OpenFOAM/OpenFOAM-dev/commit/ed5341f7f2bfd4c548eca3f5cc217329e2620c2d.

The else statements in saturated.C are necessary. You're confusing the set of all species in a phase with the subset of species that are volatile and create a non-zero interfacial fraction in an adjacent phase.

Issue History

Date Modified Username Field Change
2021-04-15 09:26 sjohn2 New Issue
2021-04-15 12:05 will Assigned To => will
2021-04-15 12:05 will Status new => resolved
2021-04-15 12:05 will Resolution open => fixed
2021-04-15 12:05 will Fixed in Version => dev
2021-04-15 12:05 will Note Added: 0011997