Reynolds number for particle in LaEuScalarTemp.C and scalarGeneralExchange.C

Submitted by hossain.aziz on Wed, 01/13/2021 - 02:51

Hi,

I am trying to understand the heat transfer ( LaEuScalarTemp.C ) and scalar transport (scalarGeneralExchange.C) model in CFDEM-coupling. In the line 385 of scalarGeneralExchange.C file, particle Reynolds number have been calculated as

Rep = dscaled*magUr*voidfraction/nuf;

Here "voidfraction" appears in the expression for Reynolds number.

However, in the line 257 of LaEuScalarTemp.C file, particle Reynolds number have been calculated as

Rep = ds*magUr/nuf;

Here "voidfraction" does not appear in the expression for Reynolds number. It will be a great help for me if anyone can explain me why the expressions for Rep is different in these two files. Thank you and happy new year.

with regards,
Hossain

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