[kishpishar]

In recent versions of twoPhaseEulerFoam (3.0 and beyond) the mixtureKEpsilon model is implemented which requires boundary files for km and epsilonm. In the corresponding tutorials (bubbleColumn) one notes strangely that:

zeroGradient BC has been used at walls for km and epsilonm whereas the respective wall functions have been used at walls for k.* and epsilon.*.

The tutorial runs, but is it correct to use zeroGradient for turbulence quantities at walls?

On the other hand, if I change zeroGradient to the respective wall functions, twoPhaseEulerFoam returns the

error:

--> FOAM FATAL ERROR:

request for turbulenceModel turbulenceProperties from objectRegistry region0 failed
available objects of type turbulenceModel are

2
(
turbulenceProperties.air
turbulenceProperties.water
)

Can anyone please let me know?

-Kumar