Analysis of Joint URBAN 2003 Wind and Turbulence Profiles and Comparison with FEM3MP Simulations Page: 7 of 18
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TKE dissipation rate may be estimated from
10Hz sonic anemometer data* Inertial dissipation method:
estimate the dissipation rate
based on power (S) in the inertial
subrange
* We use average S, in the inertial
subrange,f> 0.5 Hz: by only
using one component, we are
assuming isotropy
* Inertial dissipation estimation
method compares well with direct
dissipation calculations (Piper
and Lundquist, J. Atmospheric
Sciences, 2004)3/2
2w f513 Su
E=
U a
a = 0.52 (Kolmogorov constant)
streamwise, transverse, and normal
compensated spectraQ
E
C)0
10-1
102
1ainertial
subrange10.5 L
0.001,.1
.I
0.010 0.100
Frequency: sec -11.000
10.000
-I
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Lundquist, J K & Chan, S T. Analysis of Joint URBAN 2003 Wind and Turbulence Profiles and Comparison with FEM3MP Simulations, article, July 11, 2005; Livermore, California. (https://digital.library.unt.edu/ark:/67531/metadc875036/m1/7/: accessed April 24, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.