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Solving 3 PDEs simultaneously. Require help in defining the PDEs
Posted 17.12.2016, 06:55 GMT-5 Materials, Modeling Tools & Definitions, Parameters, Variables, & Functions, Studies & Solvers Version 5.1 0 Replies
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So the problems I am facing are:
1. In PDE 1 which is a derived form of the continuity equation for drift-diffusion, I have a dependent variable u1 which needs to be solved for, but the equation also includes variable u2 which will be the dependent variable for PDE2. Also u2= -grad(E) where E is the electric potential. So how do I define u2 and how do i write the gradient of electric field.
2. So when matching the co-efficients of my PDE to the co-efficient form PDE , the diffusion co-efficient C is matched to ion diffusivity i.e. D but the units dont match, so it is showing an error.
Also how do I represent div and grad in the parameters if i need to define them manually.
Thank you for your help.
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Hello Paritosh Sahu
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