Table 2-12. 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 = 60 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 --- 1,810 0,001 1,316 0,177 -0,039
1 --- 3,472 -0,021 1,513 0,195 0,033
1,5 --- 4,907 -0,076 1,534 0,378 0,114
2 --- 6,002 -0,145 1,572 0,447 0,150
2,5 --- 6,725 -0,200 1,583 0,499 0,105
3 --- 7,226 -0,237 1,651 0,574 0,131
3,5 --- 7,693 -0,259 1,856 0,618 0,282
4 --- 8,176 -0,272 1,986 0,653 0,337
4,5 --- 8,710 -0,284 2,145 0,645 0,438
5 --- 9,277 -0,291 2,303 0,710 0,535
5,5 --- 9,850 -0,285 2,421 0,753 0,525
6 --- 10,412 -0,272 2,515 0,782 0,497
6,5 --- 10,879 -0,263 2,555 0,782 0,559
7 --- 11,263 -0,245 2,578 0,791 0,589
7,5 --- 11,535 -0,219 2,560 0,772 0,578
8 --- 11,757 -0,192 2,555 0,757 0,613
8,5 --- 11,919 -0,180 2,428 0,756 0,581
9 --- 12,058 -0,176 2,275 0,741 0,527
9,5 --- 12,141 -0,173 2,171 0,710 0,496
10 --- 12,202 -0,168 2,013 0,696 0,469
10,5290 12,236 -0,159 1,838 0,695 0,453
11 290 12,269 -0,149 1,680 0,672 0,414
11,5290 12,286 -0,145 1,561 0,665 0,402
12 290 12,302 -0,144 1,442 0,666 0,364
12,5290 12,308 -0,146 1,223 0,647 0,336
13 290 12,313 -0,148 1,073 0,611 0,270
13,5290 12,313 -0,151 0,917 0,598 0,229
14 290 12,319 -0,152 0,757 0,569 0,158
14,5290 12,313 -0,148 0,754 0,549 0,101
15 290 12,313 -0,141 0,632 0,556 0,049
15,5290 12,308 -0,131 0,561 0,547 0,022
16 290 12,297 -0,120 0,557 0,532 0,010
16,5290 12,297 -0,113 0,553 0,521 0,000
17 290 12,291 -0,106 0,507 0,511 0,000
17,5290 12,280 -0,097 0,507 0,511 0,000
18 290 12,269 -0,088 0,507 0,511 0,000
18,5290 12,263 -0,077 0,507 0,511 0,000
19 290 12,269 -0,069 0,507 0,511 0,000
19,5290 12,269 -0,065 0,507 0,511 0,000
20 290 12,269 -0,061 0,507 0,511 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.