NC0003433_Fig 6-13 One Dimension_20160229

dc 2
Governing Equation R ac = D axz — v ax
c(x, 0) = Cti
c(0 t) —
�Co 0<t<—to
p t > to
ac
ax (00' t) = 0
_ Cti+(Co —Cti)A(x,t) 0<tto
c(x, t) — 51Cj + (Co — Cti) A(x, t) — (Co — Cti) A(x, t — to) t > to }
Where:
1 Rx — vt 1 vx Rx + vt
A(x,t)=2erfc i +2exp(D)erfc i
2 2(DRt)2 2 2(DRt)'
where:
c(x,t) = concentration at a distance x from the source area and a time t
cl = background concentration
co = source concentration
v = groundwater velocity (v=ki/n)
t = time
to = time when source is terminated
x = distance from source
D = dispersion
R = retardation factor
erfc = complementary error function
exp = exponent
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GW Assessment Pl,,\20. EG_CAP\CAP P,,1 2\Figures
FIGURE 6-13
ONE DIMENSIONAL CONVECTIVE -DISPERSIVE
SOLUTE TRANSPORT WITH SOURCE TERM
AND SORPTION PROPERTIES
CAPE FEAR STEAM ELECTRIC PLANT
MONCURE, NORTH CAROLINA