Free Jet Velocity Calculator (Torricelli)
Outflow velocity and flow from an opening h metres below the liquid surface.
Torricelli: the ideal jet leaves at the same speed a drop would reach free-falling height h. C_d trims the real flow for vena contracta.
Formula
Free Jet Velocity Calculator (Torricelli) is a free torricelli theorem for process, mechanical and water engineers — instant, accurate and 100% client-side, with the governing formula and reference shown next to the result so the number can be defended, not just quoted.
About Free Jet Velocity Calculator (Torricelli)
Outflow velocity and flow from an opening h metres below the liquid surface. The calculation implements V = √(2·g·h) (Çengel & Cimbala, Fluid Mechanics, §5-4). Torricelli: the ideal jet leaves at the same speed a drop would reach free-falling height h. C_d trims the real flow for vena contracta.
How to use Free Jet Velocity Calculator (Torricelli)
- 1Enter Head above opening in m.
- 2Enter Opening diameter in mm.
- 3Enter Discharge coefficient C_d.
- 4Read Jet velocity, Flow rate instantly — no submit button needed.
- 5Need US units? Flip the SI/Imperial toggle and every field converts.
Why use Free Jet Velocity Calculator (Torricelli)?
- ✓Implements the standard formula — V = √(2·g·h)
- ✓Reference cited on-page: Çengel & Cimbala, Fluid Mechanics, §5-4
- ✓One-click SI ⇄ Imperial toggle — values convert in place, physics stays in SI
- ✓Live worked example: the substitution recomputes from your numbers
- ✓Runs entirely in your browser — nothing uploaded, free forever
Frequently asked questions
What formula does the Free Jet Velocity Calculator (Torricelli) use?+
It computes V = √(2·g·h), per Çengel & Cimbala, Fluid Mechanics, §5-4. The formula is displayed under the result along with a worked example substituted with your own inputs.
What should I keep in mind when using this calculator?+
Torricelli: the ideal jet leaves at the same speed a drop would reach free-falling height h. C_d trims the real flow for vena contracta.
Does this work for any fluid?+
Yes — density and viscosity are inputs (with common fluids suggested in the field hints), so the same physics applies to water, oils, gases and process fluids. Compute always runs in SI internally, so unit mix-ups can't corrupt the result.
Is the Free Jet Velocity Calculator (Torricelli) free to use?+
Yes — completely free, no sign-up, no limits. It runs client-side in your browser, so inputs stay private and results are instant even on slow connections.
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