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مکانیک::
فاز ذرات
The PBE is a balance equation based on the number density function that accounts for the spatial and temporal evolutions of the particulate phase internal variable distribution function in a single control volume.
The basic momentum balances for the fluid and particulate phases are as follows:
Here, we show only how to obtain the viscosity of the particulate phase in a dilute system.
They assumed that the deviation from the Maxwellian velocity distribution is in each individual particulate phase; however, they assumed Maxwellian velocity distribu- tion at the interface.
Then they solved the Boltzmann's equation for each particulate phase using the Chapman-Enskog procedure by adding a perturbation to the Maxwellian velocity distribution function.
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