Table 6. Velocity profiles (U, m/s). U0 =10 m/s, 98-98,
rib
- 3mm,
Tu0 =1%
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 | 3,28 | 3,69 | 2,76 | 2,88 | 3,10 | 2,60 |
| 2 | 4,85 | 6,01 | 5,70 | 5,29 | 5,83 | 6,29 |
| 3 | 6,64 | 7,46 | 7,97 | 6,87 | 7,54 | 8,73 |
| 4 | 8,42 | 8,53 | 9,01 | 8,22 | 8,69 | 10,45 |
| 5 | 9,55 | 9,08 | 9,55 | 9,23 | 9,69 | 11,58 |
| 6 | 10,49 | 9,53 | 9,99 | 10,17 | 10,62 | 12,59 |
| 7 | 10,99 | 9,96 | 10,31 | 10,69 | 11,20 | 13,09 |
| 8 | 11,19 | 10,38 | 10,59 | 10,98 | 11,64 | 13,26 |
| 9 | 11,29 | 10,63 | 10,82 | 11,07 | 11,83 | 13,31 |
| 10 | 11,31 | 10,84 | 11,02 | 11,15 | 11,89 | 13,31 |
| 12 | 11,21 | 11,13 | 11,24 | 11,35 | 11,93 | 13,14 |
| 15 | 11,18 | 11,22 | 11,36 | 11,32 | 11,99 | 12,98 |
| 20 | 10,98 | 11,18 | 11,33 | 11,31 | 12,07 | 12,71 |
| 25 | 10,84 | 11,22 | 11,28 | 11,32 | 12,05 | 12,65 |
| 30 | 10,82 | 11,25 | 11,29 | 11,34 | 12,04 | 12,65 |
Back flow disappears with the increase of flow ram effect. In accelerated air flow all coefficients of friction substantially
increase: their values reach one percent.
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