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Passive Scalar Interaction Coefficient

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Old   July 3, 2014, 04:27
Default Passive Scalar Interaction Coefficient
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Dear All

I need your help on Passive scalar interactions Coefficient and the implementation of Passive scalar interaction.

    1. ��=��(��1��1−��2��2)����

J is the mass flow rate.
k is the interaction coefficient set under the Phase Interaction node.
ρ1 is the density of the Lagrangian particle.
ρ2 is the density of the Eulerian fluid.
ϕ1 is the value of the passive scalar for the Lagrangian particle.
ϕ2is the value of the passive scalar for the Eulerian fluid.
Ap is the surface area of the particle.

II am not sure how to calculate or determined k in the above equation.
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