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IDProjectCategoryView StatusLast Update
0001276OpenFOAMBugpublic2014-04-29 17:55
Reporteruser907Assigned Tohenry  
PriorityhighSeveritymajorReproducibilityalways
Status resolvedResolutionfixed 
Summary0001276: The twoPhaseEulerFoam solver uses wrong heat conductivity in EEqns.H
DescriptionIn the file EEqns.H of the twoPhaseEulerFoam solver the lines 26:
- fvm::laplacian(alpha1*phase1.turbulence().nuEff(), he1)
and line 49:
- fvm::laplacian(alpha2*phase2.turbulence().nuEff(), he2)
use the wrong thermal conductivity. It should be something like:
- fvm::laplacian(alpha1*(thermo1.alpha()/rho1), he1)
when turbulence effects are not included.

An even better solution would be to implement an effective thermal conductivity based on the solid fraction that is commonly used for heat transfer in gas-solid systems. One example would be the the model by Zehner and Schluender (1970)
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Activities

henry

2014-04-28 10:04

manager   ~0003033

This part of the templated turbulence framework is not complete and we seek further funding to complete it. We are also working on a fully energy conservative formulation to replace the current form which is generates conservatino errors in regions of high density gradient.

henry

2014-04-29 17:55

manager   ~0003035

Resolved by commit abcc7428ac7ba5964160110ef655142ba6ec2d25

Issue History

Date Modified Username Field Change
2014-04-28 09:19 user907 New Issue
2014-04-28 10:04 henry Note Added: 0003033
2014-04-29 17:55 henry Note Added: 0003035
2014-04-29 17:55 henry Status new => resolved
2014-04-29 17:55 henry Resolution open => fixed
2014-04-29 17:55 henry Assigned To => henry