The five directories contain statistics from five different
simulations. The same kind of data are available for all cases
and are stored in the same way. All files contain a profile as
a function of the normal coordinate (y).
The files are named with letters describing the quantity and
a number which represent the streamwise (x) position at which
the profile is taken.
The letters in the file name are one of the following
and is explained in the table.
u streamwise velocity
v normal velocity
w spanwise velocity
ux x-derivative of streamwise velocity
vx x-derivative of normal velocity
uy y-derivative of streamwise velocity
vy y-derivative of normal velocity
uv Reynolds shear stress
urms root-mean-square of streamwise velocity
vrms root-mean-square of normal velocity
wrms root-mean-square of spanwise velocity
k turbulent kinetic energy
eps dissipation
p mean value of pressure
prms root-mean-square of pressure fluctuations
pu correlation: pressure - streamwise velocity
pux correlation: pressure - x-derivative of streamwise velocity
pu_x x-derivative of correlation pu
pv correlation: pressure - normal velocity
....etc....
All quantities are given in plus-units, i.e. they are scaled
with the friction velocity and viscosity. These are given in
the table below. Thus, by rescaling according to the viscosity
and friction velocity, the quantities in simulation scaling are
obtained. This scaling is based on the freestream velocity (U)
at x=0, which is 1.0 in all simulation, and the displacement
thickness (delta_*) at x=0. These parameters are linked through
the Reynolds number (RE=U delta_* / viscosity) at x=0.
Also included in the table is the pressure gradient velocity (u_p).
Example of matlab files for reading and rescaling are available on
the web page.
More info and examples can be found in the ZPG directory.
*** For more details see the thesis. ***
ZPG
Viscosity=1/450 (RE=450)
Freestream velocity (U), Friction velocity (u_tau), Pressure gradient velocity (u_p)
x=150 1.0 0.0525 0.0
x=200 1.0 0.0510 0.0
x=250 1.0 0.0500 0.0
x=300 1.0 0.0492 0.0
x=350 1.0 0.0487 0.0
x=400 1.0 0.0480 0.0
x=450 1.0 0.0478 0.0
APG1
Viscosity=1/400 (RE=400)
x=150 0.9082 0.0466 0.0091
x=350 0.8627 0.0417 0.0070
APG2
Viscosity=1/400 (RE=400)
x=150 0.8288 0.0409 0.0107
x=335 0.7540 0.0347 0.0081
APG3
Viscosity=1/400 (RE=400)
x=150 0.7324 0.0287 0.0117
x=300 0.6408 0.0215 0.0089
x=450 0.5873 0.0198 0.0075
SEP
Viscosity=1/400 (RE=400)
x=150 0.6196 -0.0088 0.0119
x=200 0.5728 -0.0144 0.0104
x=250 0.5379 -0.0123 0.0094
x=300 0.5095 -0.0165 0.0086
x=350 0.4867 -0.0232 0.0080
x=400 0.4673 -0.0137 0.0075
x=412 0.4628 0.0024 0.0074
x=450 0.4503 0.0166 0.0071
x=500 0.4358 0.0181 0.0067