[lg88]

Hi everybody
These days I have been studying a case of electric arc. I set an additional Variable name EPOT whose equation is diffusive transport equation.And I set the kinematic diffusivity as "Electric Conductivity/density*factorPhi".Electric Conductivity is also an additional Variable whose equation is algebraic equation.And its value I have set as constant.But when I run the case I met the following error:

Error processing expression 'Kinematic Diffusivity'.
The expression is invalid because:
Electric Conductivity is not available for use in this term

Error processing expression: Kinematic Diffusivity = Electric Conductivity/density*factorPhi

What is the problem?How can I solve it?Thank you very much!

lg88