Table 2-10. 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 = 30 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 --- 0,058 0,000 0,288 0,146 0,002
1 --- 0,219 -0,019 0,692 0,276 0,023
1,5 --- 0,553 -0,073 0,980 0,435 0,090
2 --- 1,065 -0,162 1,210 0,558 0,210
2,5 --- 1,732 -0,285 1,383 0,658 0,319
3 --- 2,527 -0,433 1,610 0,730 0,428
3,5 --- 3,456 -0,593 1,805 0,820 0,572
4 --- 4,540 -0,740 2,041 0,878 0,628
4,5 --- 5,508 -0,852 2,207 0,928 0,621
5 --- 7,192 -0,914 2,411 0,918 0,744
5,5 --- 8,594 -0,925 2,541 0,938 0,747
6 --- 9,961 -0,902 2,563 0,928 0,661
6,5 --- 11,129 -0,862 2,444 0,960 0,572
7 --- 12,085 -0,795 2,300 0,956 0,472
7,5 --- 12,725 -0,699 2,070 0,943 0,434
8 --- 13,125 -0,585 1,899 0,928 0,419
8,5 --- 13,325 -0,485 1,841 0,898 0,396
9 --- 13,426 -0,399 1,812 0,881 0,427
9,5 --- 13,459 -0,335 1,744 0,836 0,414
10 --- 13,470 -0,280 1,585 0,797 0,358
10,5290 13,459 -0,231 1,426 0,762 0,320
11 290 13,437 -0,188 1,275 0,731 0,290
11,5290 13,459 -0,158 1,077 0,689 0,260
12 290 13,414 -0,132 0,997 0,661 0,234
12,5290 13,370 -0,101 0,868 0,645 0,141
13 290 13,353 -0,071 0,772 0,615 0,097
13,5290 13,325 -0,047 0,732 0,595 0,063
14 290 13,292 -0,026 0,725 0,594 0,029
14,5290 13,259 -0,007 0,692 0,582 0,012
15 290 13,225 0,002 0,614 0,581 -0,016
15,5290 13,198 -0,005 0,555 0,581 0,002
16 290 13,181 -0,015 0,555 0,581 0,005
16,5290 13,175 -0,013 0,555 0,581 0,005
17 290 13,164 0,003 0,555 0,581 0,005
17,5290 13,148 0,027 0,555 0,581 0,005
18 290 13,125 0,055 0,555 0,581 0,005
18,5290 13,086 0,078 0,555 0,581 0,005
19 290 13,042 0,096 0,555 0,581 0,005
19,5290 13,008 0,109 0,555 0,581 0,005
20 290 12,981 0,119 0,555 0,581 0,005

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.