PIV-15

Table 2-15. Temperature and velocity profiles.

Ethanol evaporated and burned in boundary layer behind back-facing step.
Wind channel had no top lid, U₀ =11,2 m/s,
distance from barrier x = 10 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,mm	T	U	V	U'	V'	U'V'
0	341
0,5	422	-0,139	0,028	0,357	0,239	-0,003
1	486	-0,346	0,014	0,554	0,528	-0,014
1,5	522	-0,294	-0,030	0,681	0,791	-0,016
2	538	0,168	-0,060	0,790	0,930	0,037
2,5	545	1,449	-0,070	0,891	0,932	0,064
3	513	3,903	-0,073	1,139	0,803	0,036
3,5	426	7,102	-0,066	1,470	0,668	-0,011
4	335	9,783	-0,038	1,729	0,534	-0,032
4,5	295	11,170	0,012	2,015	0,421	0,030
5	290	11,640	0,037	2,020	0,367	-0,004
5,5	290	11,758	0,052	1,684	0,315	-0,005
6	290	11,749	0,063	1,244	0,260	0,006
6,5	290	11,746	0,074	0,892	0,226	0,007
7	290	11,732	0,084	0,648	0,223	0,002
7,5	290	11,710	0,094	0,480	0,243	0,003
8	290	11,710	0,100	0,406	0,232	0,004
8,5	290	11,705	0,104	0,359	0,226	0,007
9	290	11,679	0,106	0,358	0,219	0,000
9,5	290	11,683	0,109	0,336	0,220	-0,007
10	290	11,683	0,112	0,303	0,239	-0,009
10,5	290	11,662	0,118	0,307	0,238	0,019
11	290	11,662	0,123	0,298	0,220	0,010
11,5	290	11,657	0,132	0,311	0,228	-0,001
12	290	11,657	0,141	0,318	0,268	0,001
12,5	290	11,635	0,149	0,317	0,278	-0,009
13	290	11,618	0,155	0,303	0,279	-0,003
13,5	290	11,618	0,159	0,305	0,289	-0,004
14	290	11,613	0,164	0,300	0,303	-0,001
14,5	290	11,596	0,167	0,290	0,341	0,009
15	290	11,604	0,172	0,298	0,333	-0,004
15,5	290	11,596	0,179	0,280	0,305	-0,005
16	290	11,583	0,185	0,284	0,318	-0,016
16,5	290	11,569	0,192	0,301	0,348	-0,018
17	290	11,561	0,197	0,308	0,298	-0,013
17,5	290	11,556	0,200	0,295	0,253	-0,003
18	290	11,534	0,207	0,312	0,263	-0,007
18,5	290	11,543	0,210	0,322	0,286	-0,004
19	290	11,547	0,211	0,334	0,309	0,007
19,5	290	11,521	0,210	0,338	0,383	0,054
20	290	11,473	0,210	0,332	0,348	0,054

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.

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);

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.

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);