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Calculator for Prandtl probe and Pitot tube flow velocity meter calculation

Related calculators: Orifice flow; Venturi flow

Pipe flow calculator features

  • Pack of sixteen pipe flow calculators in one application
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  • Used by thousands of engineers, students, professors and other professionals every day
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Requirements

Java Runtime Environment – JRE version 1.8+
(install latest JRE now)

OR without Java
Download and run calculators pack - for Windows64bit users only.

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Calculators for download in one pack, Java required.
For desktop/laptop users (Windows, MacOS, Linux)

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*no administrator's roles required

No Java? It's a shame…
BUT it's not the end of the word!

If you are having Windows 64bit on your computer you can download and run calculators even without administrator role on your computer. This kind of calculator deployment is great if you are on the corporate network and if you don't have authority to install anything on your computer.

If you are not Windows 64bit user you can still use some calculators on my other web site at pipeflowcalculations.net .
There you can try server side, mobile friendly, pipe flow calculators that require nothing more than a web browser and Internet connection

Prandtl probe is used as flow velocity meter and as flow rate meter, mainly for open flow around solid bodies. Flow velocity and flow rate measurement with Prandtl probe is based on measuring difference between total pressure and static pressure of flow in a point of flow streamline. With Prandtl probe velocity meter in central part of Prandtl probe flow velocity is brought to zero isenthropiclly. With velocity equal to zero measured pressure equals total pressure. On outer part of Prandtl probe where flow streamlines are tangent to Prandtl probe flow velocity is not changed and pressure measured on that part of Prandtl probe is called static pressure.

The difference between total and static pressure in one point of flow streamline is called dynamic pressure. Dynamic pressure represents kinetic energy and flow velocity can be calculated using Prandtl probe calculator. Velocity is calculated as follows:

total pressure

where is:

  • p - pressure
  • pt - total pressure
  • pd - dynamic pressure
  • v - velocity
  • ρ - density

Calculator can be used for Pitot tube velocity meter as well. Pitot tube velocity meter is measuring total pressure in one point of flow streamline and for known static pressure, dynamic pressure can be calculated and from dynamic pressure, flow velocity is calculated using Pitot tube calculator.

Calculator for Prandtl probe and Pitot tube flow velocity meter calculation can be used for liquids and ideal gases compressible and incompressible flow.

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