Numerical Study on the Charge Transport in a Space between Concentric Circular Cylinders
Figure 3
Dependence of , the value of at , on the conservation property of the convection terms and the specific form of the source terms in the charge transport equation given from COMSOL simulation with the number of grid elements being 12,000. The diffusivity factor is set at and the reference velocity at [m/s]. Solid lines with square symbols are given by CN-SC (convection terms in a nonconservative form and the source term written in terms of the charge), solid lines with circles by CN-SE (convection terms in a nonconservative form and the source term written in terms of the electric field), solid line with deltas by CC-SC (convection terms in a conservative form and the source term written in terms of the charge), and solid line with diamond symbols by CC-SE (convection terms in a conservative form and the source term written in terms of the electric field). The solid line without symbols, , denotes the numerical solution obtained by the 2D in-house code.
