Uturb in DieselFoam
 

Hey foamers:

I hope all of you have a nice weekend.
I would like to inquire you the " Uturb" in the parcel, which is used in the DieselFoam.
I read the source code, but it is sad that I didn't find where to solve the Uturb. Moreover, I also don't understand the function of the dispersionModel. Does it have some relation with the Uturb?

Thanks and best wishes!

Is there anybody know about the problem?
It is very small question, but it is very important.

Is there nobody to care about this problem? I am waiting for answer

have you checked for instance

src/lagrangian/dieselSpray/spraySubModels/dispersionModel/stochasticDispersionRAS/stochasticDispersionRAS.C

where Uturb is calculated.

When the parcel properties are to be updated Uturb is simply added to to the gaseous velocity in

src/lagrangian/dieselSpray/parcel/parcel.C

as
vector Up = sDB.UInterpolator().interpolate(position(), celli, facei)
+ Uturb();

so this will influence both drag and mass/heat transfer.

Thanks for your reply, and I have checked that instance. However, I am not sure whether the dispersionModel has relation with the Uturb.

And I think if I don't need to use the Uturb. I think I only need to set up the option of " dispersionModel " off. Is it right?

Thanks!

Uturb is only from the dispersion model.

that is correct.
setting it to off will result in Uturb = vector::zero.

Thanks! I am clear about it now.