This directory contains the following files:

frame2.dat............2D-PIV data at centerplane of tunnel from x/c approx 0.65 to x/c approx 0.874
                      at phases 0, 10, 20, ..., 350, 360 (360 is a repeat of 0)

The data given are:
    x/c      = x-location, normalized by hump chord (c=0.4200 m)
    y/c      = y-location, normalized by hump chord (c=0.4200 m)
    Umean    = mean x-component of velocity in m/s
    Vmean    = mean y-component of velocity in m/s
    Urms     = u_rms in m/s
    Vrms     = v_rms in m/s
    UV       = -u'v' in m^2/s^2
    Npoints  = how many "good" measurements were made at particular x,y location

Regarding the Phase, the time at which peak BLOWING velocity was measured OUT
of the slot corresponds to approximately Phase=170 deg.

Note that this file includes a large region at the bottom 
that lies INSIDE of the hump body.  (The coordinates for the
hump body at its back end are given in the file coords_backend.dat.)
The data in frame2.dat that lie within this region should be 
discounted.  Also, data within a distance of .004c - .005c of the
wall is likely unreliable (due to wall reflection) and should also 
be discounted!

Note that Region 2 had imaging
problems, near the wall, from x/c=0.65 to 0.76. In this x/c range
Region 2 mean velocity is within 20% or better compared with
Region 1 data and within 33% in rms velocity for the following
phases: 000-020, 080, 110, 130-230, 250-340 (other phases in the
Region 2 dataset are less accurate).



The data files are all "Tecplot-format" (version 10).
For example, for:

 I=96, J=70, K=1, ZONETYPE=Ordered
 DATAPACKING=BLOCK

the data can be read from a given section via:

      idim=96
      jdim=70
      read(2,*) ((x(i,j),i=1,idim),j=1,jdim)
      read(2,*) ((y(i,j),i=1,idim),j=1,jdim)
      read(2,*) ((u(i,j),i=1,idim),j=1,jdim)
      read(2,*) ((v(i,j),i=1,idim),j=1,jdim)
      read(2,*) ((uprime(i,j),i=1,idim),j=1,jdim)
      read(2,*) ((vprime(i,j),i=1,idim),j=1,jdim)
      read(2,*) ((upvp(i,j),i=1,idim),j=1,jdim)
      read(2,*) ((points(i,j),i=1,idim),j=1,jdim)

