T. Takuma et T. Kawamoto, NUMERICAL-CALCULATION OF ELECTRIC-FIELDS WITH A FLOATING CONDUCTOR, IEEE transactions on dielectrics and electrical insulation, 4(2), 1997, pp. 177-181
The paper gives the formulations in calculating electric fields by the
charge simulation method, which involve a floating conductor in touch
with two dielectric media. In such composite dielectric arrangements,
the additional equation necessary for solving a floating potential is
totally different from the one in single dielectric cases. The paper
also describes the formulation for a solid dielectric with volume or s
urface conduction (leakage).