Reply To: Total pressure is not equal to the sum of static pressure and dynamic pressure.

[xukai214]

The pressure between the different outlets is almost the same. (Show in Figure 4) The velocity magnitude of inlet is around 10m/s and outlets is 43.6m/s. The mass average velocity on inlet and different outlets is shown in Figure 5.

Figure 4 The pressure of different outlets

Figure 5 The mass average velocity on inlet and outlets

We use equation in Figure 6 to calculate the hydrostatic pressure, the value is 959.65Pa. Previously, we compared calculations with gravity on and off and the results do not show a significant difference. So we think hydrostatic pressure is not the main reason of the problem.

Thanks again for your reply and look forward to hearing new from you!

Figure 6 The calculation of hydrostatic pressure