These data files are from the 1990 boundary layer experiment conducted at Ecole Centrale de Lyon.
There are 8 data files, corresponding to 8 different y+ locations, as shown in the following table.
| file name | y+ |
| ascii.002 | 16 |
| ascii.003 | 20 |
| ascii.004 | 26 |
| ascii.005 | 35 |
| ascii.006 | 48 |
| ascii.007 | 60 |
| ascii.008 | 73 |
| ascii.009 | 89 |
These files are in ASCII format. The length of data is 180 seconds, and the data was sampled at 1000 Hz. So in each file, there are 180,000 lines of data. There are 12 variables.
The data is stored in the following sequence in each line:
U V W du/dy du/dz dv/dy dv/dz dw/dy dw/dz Sync1 Sync2 ErrorCodeThe numbers are comma-separated.
Here we have three velocity components and six velocity gradient components. Sync1 and Sync2 are internal flags and can be ignored. There are some bad data points, which are marked by non-zero ErrorCode. Processing program should identify these points and exclude them from statistic calculations.
This page is created and maintained by Ning Li. Last modified on 2/4/2002.