River model of a charged (Reissner-Nordström) Black Hole
(gr-qc/0411060)
Same Gullstrand-Painlevé (1921) metric
with
b
º
[ 2
G
M
(
r
) /
r
]
1/2
, interior mass
M
(
r
) =
M
-
Q
²/2
r
River model: Kerr-Newmann