Table 2-11. Velocity profiles.

Ethanol evaporated without burning in boundary layer behind rib.
Wind channel had no top lid, U0 =11,2 m/s,
distance from barrier x = 40 mm.
x, y (mm) - longitudinal and transverse coordinates;
U, U', V, V', (m/s) - longitudinal averaged velocity and its RMS pulsations,
temperature (T, K), correlations U'V' (m 2/s 2);
Tu0=1%
y,mmTUVU'V'U'V'
0 ---
0,5 --- 0,531 -0,045 0,417 0,159 0,011
1 --- 1,131 -0,104 0,799 0,360 0,024
1,5 --- 1,843 -0,190 1,036 0,426 0,069
2 --- 2,594 -0,293 1,232 0,504 0,133
2,5 --- 3,331 -0,403 1,427 0,607 0,233
3 --- 4,056 -0,500 1,631 0,696 0,318
3,5 --- 4,901 -0,566 1,790 0,747 0,380
4 --- 5,830 -0,602 2,012 0,790 0,474
4,5 --- 6,803 -0,609 2,173 0,815 0,504
5 --- 7,787 -0,609 2,317 0,837 0,536
5,5 --- 8,733 -0,618 2,408 0,863 0,515
6 --- 9,661 -0,630 2,421 0,872 0,464
6,5 --- 10,512 -0,630 2,417 0,875 0,475
7 --- 11,285 -0,601 2,313 0,869 0,415
7,5 --- 11,885 -0,534 2,165 0,854 0,417
8 --- 12,325 -0,461 2,026 0,834 0,498
8,5 --- 12,591 -0,415 1,862 0,849 0,501
9 --- 12,747 -0,391 1,767 0,819 0,462
9,5 --- 12,831 -0,378 1,645 0,809 0,475
10 --- 12,886 -0,365 1,494 0,799 0,444
10,5290 12,908 -0,347 1,386 0,772 0,411
11 290 12,914 -0,322 1,272 0,721 0,333
11,5290 12,920 -0,299 1,133 0,685 0,261
12 290 12,925 -0,284 0,991 0,648 0,220
12,5290 12,920 -0,277 0,865 0,613 0,147
13 290 12,914 -0,270 0,777 0,567 0,084
13,5290 12,897 -0,255 0,710 0,522 0,044
14 290 12,881 -0,234 0,642 0,514 0,035
14,5290 12,864 -0,213 0,599 0,507 0,003
15 290 12,842 -0,192 0,575 0,506 0,000
15,5290 12,819 -0,169 0,561 0,506 0,000
16 290 12,797 -0,148 0,546 0,506 0,000
16,5290 12,786 -0,134 0,546 0,506 0,000
17 290 12,769 -0,127 0,546 0,506 0,000
17,5290 12,753 -0,128 0,546 0,506 0,000
18 290 12,742 -0,132 0,546 0,506 0,000
18,5290 12,736 -0,131 0,546 0,506 0,000
19 290 12,736 -0,121 0,546 0,506 0,000
19,5290 12,714 -0,100 0,546 0,506 0,000
20 290 12,262 -0,076 0,546 0,506 0,000

Presence of areas with abnormally high and null friction corresponds to the boundary layer with detachment and large-scale structures formed at the barrier flow.