Geoscience Reference
In-Depth Information
Fig. 1.9
Model predicted aerosol size spectrum
dR
W
rdz
W
*
dt
=
=
.
(1.35)
The large eddy circulation speed
W
is expressed in terms of
f
and
z
as (Eq. 1.6)
Wwfz
=
.
*
Substituting for
f
from Eq. (1.8)
2
z
zw
z
2
Wwz
=
ln
=
ln .
z
*
*
π
π
Substituting for
W
in Eq. (1.35), the incremental eddy growth time d
t
is given as
follows:
rdz
wfz
rdz
*
*
dt
=
=
.
2
π
*
wz
ln
z
*
z
The time Γ taken for large eddy growth from surface to normalized height
z
is ob-
tained as follows:
r
w
π
2
dz
z
∫
*
∫
(1.36)
Γ=
dt
=
.
Search WWH ::
Custom Search