Static Pressure Recordings.
Static Pressure ports are located every ½ inch along the nozzle, starting with port 1 at the throat.
Record Static Pressure Data in the following table.
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Port Number |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
13 |
14 |
15 |
16 |
17 |
18 |
19 |
20 |
|
Position (inch) |
0.0 |
0.5 |
1.0 |
1.5 |
2.0 |
2.5 |
3.0 |
3.5 |
4.0 |
4.5 |
5.0 |
5.5 |
6.0 |
6.5 |
7.0 |
7.5 |
8.0 |
8.5 |
9.0 |
9.5 |
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Pressure reading (h ins Hg) |
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Pressure Reading (Pa) |
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The Stagnation Pressure of the flow is recorded in the reservoir upstream of the nozzle. Record Stagnation Pressure Data in the following table.
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Column No. |
1 |
2 |
3 |
4 |
5 |
6 |
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Height Reading (in) |
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Stagnation Pressure (in Hg) |
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Stagnation Pressure (Pa) |
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The Atmospheric Pressure in the lab should be recorded so that absolute pressure values can be obtained.
Patm = cm Hg
= Pa