PIV-16

Table 2-16. 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 = 20 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	433	-0,059	-0,013	0,380	0,252	0,007
1	488	-0,209	0,076	0,930	0,622	0,109
1,5	484	-0,056	0,064	1,303	1,120	0,283
2	444	0,699	-0,035	1,468	1,376	0,450
2,5	401	2,301	-0,110	1,671	1,487	0,595
3	332	4,535	-0,113	1,848	1,495	0,650
3,5	309	7,097	-0,093	1,731	1,377	0,695
4	297	9,336	-0,075	1,366	1,135	0,534
4,5	292	10,753	-0,062	1,023	0,905	0,335
5	290	11,385	-0,053	0,748	0,756	0,133
5,5	292	11,583	-0,046	0,585	0,602	0,047
6	290	11,609	-0,041	0,497	0,495	0,037
6,5	290	11,596	-0,031	0,420	0,409	0,025
7	290	11,591	-0,022	0,338	0,330	0,006
7,5	290	11,587	-0,012	0,336	0,314	-0,001
8	290	11,587	-0,005	0,311	0,303	0,001
8,5	290	11,574	0,003	0,288	0,258	0,006
9	290	11,565	0,014	0,276	0,232	0,002
9,5	290	11,556	0,021	0,264	0,227	0,000
10	290	11,561	0,029	0,295	0,225	-0,003
10,5	290	11,556	0,039	0,310	0,266	-0,008
11	290	11,547	0,050	0,268	0,267	-0,009
11,5	290	11,534	0,060	0,269	0,254	-0,002
12	290	11,539	0,073	0,303	0,247	-0,005
12,5	290	11,530	0,079	0,277	0,251	0,006
13	290	11,521	0,086	0,277	0,225	0,010
13,5	290	11,521	0,098	0,267	0,225	0,001
14	290	11,521	0,106	0,264	0,237	0,002
14,5	290	11,530	0,114	0,279	0,250	-0,006
15	290	11,539	0,122	0,302	0,262	0,000
15,5	290	11,521	0,131	0,314	0,284	0,010
16	290	11,508	0,140	0,290	0,259	0,009
16,5	290	11,504	0,147	0,289	0,248	0,000
17	290	11,482	0,150	0,308	0,256	-0,003
17,5	290	11,442	0,154	0,308	0,279	0,001
18	290	11,433	0,156	0,356	0,282	-0,006
18,5	290	11,451	0,159	0,377	0,273	-0,006
19	290	11,451	0,164	0,342	0,266	0,000
19,5	290	11,455	0,165	0,339	0,277	0,001
20	290	11,451	0,165	0,422	0,335	-0,016

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);