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Forensic Engineering Fundamentals
book

Forensic Engineering Fundamentals

by Harold Franck, Darren Franck
December 2012
Beginner to intermediate content levelBeginner to intermediate
487 pages
17h
English
CRC Press
Content preview from Forensic Engineering Fundamentals
344 Forensic Engineering Fundamentals
e charge density can be described as such:
ρ
σ
µ
=
(11.8)
μ is the mobility of charged particles
σ is the conductivity = 0.01 V/m
Conduction can be varied to depict various sources for freshwater.
erefore, K = 0.014 V/m
2
for freshwater.
Poisson’s equation is a nonhomogeneous partial dierential equation (PDE) with non-
homogeneous boundary conditions. erefore, we separate it into
1. Steady-state PDE (K = 0) with nonhomogeneous boundary conditions
2. e given PDE (
2
V = −K) with homogenous boundary conditions steady-state PDE
∇=
+
=
2
2
2
2
2
0U
U
x
U
y
(11.9)
Boundary conditions:
Ux fx UxLgx(0)(), ()(),,==
Uyhy UMyj ...
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Publisher Resources

ISBN: 9781439878392