Table 8. Velocity profiles (U, m/s). U0 =10 m/s, 98-98,
rib
- 3mm
Tu0 =8%
x,y (mm)
| y | x=32 | x=97 | x=162 | x=227 | x=292 | x=357 |
| 0 | 0,00 | 0,00 | 0,00 | 0,00 | 0,00 | 0,00 |
| 1 | 3,30 | 3,16 | 3,84 | 4,69 | 4,45 | 4,50 |
| 2 | 5,42 | 5,28 | 6,08 | 7,45 | 6,93 | 7,10 |
| 3 | 6,66 | 6,67 | 7,23 | 8,68 | 8,18 | 8,31 |
| 4 | 7,82 | 7,70 | 8,22 | 9,41 | 9,16 | 9,16 |
| 5 | 8,90 | 8,49 | 9,05 | 9,96 | 10,09 | 10,08 |
| 6 | 9,84 | 9,18 | 9,66 | 10,42 | 10,92 | 11,14 |
| 7 | 10,48 | 9,74 | 10,12 | 10,83 | 11,69 | 12,04 |
| 8 | 10,98 | 10,16 | 10,48 | 11,13 | 12,14 | 12,47 |
| 9 | 11,34 | 10,48 | 10,71 | 11,36 | 12,25 | 12,69 |
| 10 | 11,50 | 10,76 | 10,89 | 11,49 | 12,25 | 12,81 |
| 12 | 11,50 | 11,18 | 11,18 | 11,62 | 12,26 | 12,92 |
| 15 | 11,35 | 11,36 | 11,49 | 11,77 | 12,19 | 12,94 |
| 20 | 11,29 | 11,50 | 11,64 | 11,92 | 12,15 | 13,01 |
| 25 | 11,28 | 11,56 | 11,63 | 12,01 | 12,18 | 13,02 |
| 30 | 11,28 | 11,57 | 11,62 | 12,03 | 12,19 | 13,02 |
Experimental data on friction coefficients in the boundary layer with combustion behind the barrier differ with the value
of acceleration parameter. In acceleration-free experiments friction coefficients in the considered flow modes can be negative, null.
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