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Hydraulics
Dynamic Pressure
Enter values in the stated units. Example inputs are provided to help you explore the method.
Results
Your results will appear here after calculation. Changing an input clears the previous result.
Method & assumptions
- Dynamic pressure q = ½ρv² is kinetic energy per unit volume.
- Example: density 1.225 kg/m³ and speed 20 m/s gives 245 Pa. The example density is an input assumption, not an atmospheric property lookup.
- Equating q with stagnation pressure minus static pressure requires the incompressible, lossless Bernoulli assumptions. Compressible Pitot measurements need a different relation.
- Source: NASA Glenn, Dynamic Pressure — https://www.grc.nasa.gov/www/BGH/dynpress.html