Schemat stanowiska
Wzory
$${Re = \frac{4q_{v}}{\text{πdϑ}}}{\lambda_{t} = \frac{64}{\text{Re}}}$$
$$q_{v} = \frac{V}{t}$$
$$\lambda_{dosw} = \frac{2dg(h_{1} - h_{2} - \xi\frac{8q_{v}^{2}}{\pi^{2}d^{4}g})}{l\frac{16q_{v}^{2}}{\pi^{2}d^{4}}}$$
$$q_{v} = \frac{7,5 \bullet 10^{- 5}}{69} = 10,87 \bullet 10^{- 7}\frac{m^{3}}{s}$$
$${Re = \frac{4 \bullet 10,87 \bullet 10^{- 7}}{3,14 \bullet 1,269 \bullet 10^{- 3} \bullet 1,14 \bullet 10^{- 6}} = 957}{\lambda_{dosw} = \frac{2 \bullet 1,269 \bullet 10^{- 3} \bullet 9,81(1240 \bullet 10^{- 3} - 790 \bullet 10^{- 3} - 0,5\frac{8 \bullet ({10,87 \bullet 10^{- 7})}^{2}}{{3,14}^{2}{(1,269 \bullet 10^{- 3})}^{4}9,81})}{0,1759\frac{16 \bullet ({10,87 \bullet 10^{- 7})}^{2}}{{3,14}^{2}{(1,269 \bullet 10^{- 3})}^{4}}} = 0,083}$$
| ∆h1[mmH2O] | ∆h2[mmH2O] | T[s] | V[cm3] | V[m3] | qv[m3/s] |
|---|---|---|---|---|---|
| 1240 | 790 | 69 | 75 | 7,5·10-5 | 10,87·10-7 |
| 1170 | 690 | 71 | 75 | 7,5·10-5 | 10,56·10-7 |
| 710 | 420 | 60 | 50 | 5·10-5 | 8,33·10-7 |
| 564 | 330 | 80 | 50 | 5·10-5 | 6,25·10-7 |
| 425 | 250 | 97 | 50 | 5·10-5 | 5,15·10-7 |
| 315 | 190 | 69 | 25 | 5·10-5 | 3,62·10-7 |
| 205 | 125 | 93 | 25 | 2,5·10-5 | 2,69·10-7 |
| 140 | 90 | 160 | 25 | 2,5·10-5 | 1,56·10-7 |
| 85 | 50 | 233 | 25 | 2,5·10-5 | 1,07·10-7 |
4. Tabele wynikowe
| Redośw | ϑ[m2/s] | λt | Re t | λdośw |
|---|---|---|---|---|
| 957 | 1,14·10-6 | 0,064 | 1000 | 0,083 |
| 930 | d[m] | 0,071 | 900 | 0,094 |
| 734 | 1,269·10-3 | 0,080 | 800 | 0,091 |
| 550 | l1[m] | 0,091 | 700 | 0,132 |
| 454 | 0,1759 | 0,107 | 600 | 0,145 |
| 319 | 0,128 | 500 | 0,212 | |
| 237 | 0,160 | 400 | 0,247 | |
| 138 | 0,320 | 200 | 0,460 | |
| 94 | 0,640 | 100 | 0,684 |