Choked Flow Calculator

Version 1.42 (14.6 MB) by Berke Öznalbant
A tool that lets you calculate fluid flow rate and orifice area for choked flow.
5.0
(5)
566 Downloads
Updated 23 Feb 2022

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Enter temperature and pressure as an input. To calculate area, enter volumetric or mass flow rate; to calculate flow rate enter area or diameter of the orifice.

Cite As

Berke Öznalbant (2026). Choked Flow Calculator (https://www.mathworks.com/matlabcentral/fileexchange/74492-choked-flow-calculator), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2021b
Compatible with any release
Platform Compatibility
Windows macOS Linux
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Version Published Release Notes
1.42

-Added water as fluid.
-Specific heat ratio now varies with pressure and temperature.
1.41

Fixed a bug related to area calculation.
1.40

Now supports calculating for temperature and pressure with decimals.
1.30

Added different fluid properties.
1.2.1

Converted to toolbox from an app.
1.2

Added enthalpy and enthalpy change based on mass flow rate.
1.1

Increased temperature range for fluids with the request of a beloved user.
Currently calculations can be done within the range of 80-1000 Kelvin and 0-350 bar.
1.0

Fixed phases for N2O.
0.96

Added phase for the chosen field and nitrous for calculations.
0.95

Fixed the confliction between inner and outer diameter fields.
0.94

Corrected tab order so that the tab button works properly.
Changed the way decimals are shown in the edit fiels.
0.92

Corrected the description and acknowledgments sections.
0.91

Function that lets you import data from NIST is added to the acknowledgments section.
0.9