Examples
Examples
Try the starting example
- Wave period (seconds)
- 10
- Water depth (m)
- 20
- Gravity (m/s²)
- 9.80665
- Phase speed (m/s)
- 12.120984
- Group speed (m/s)
- 9.271612
- Group-to-phase ratio
- 0.764922
Try another scenario
- Wave period (seconds)
- 11
- Water depth (m)
- 20
- Gravity (m/s²)
- 9.80665
- Phase speed (m/s)
- 12.445614
- Group speed (m/s)
- 9.961746
- Group-to-phase ratio
- 0.800422
Calculation method
Calculation method
Phase speed (m/s)
omega/k from finite-depth linear dispersion.
Group speed (m/s)
Phase speed ×0.5(1+2kh/sinh(2kh)).
Group-to-phase ratio
Group speed / phase speed.
Symbols and units
- a
- Wave period (seconds)
- b
- Water depth (m)
- c
- Gravity (m/s²)
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Assumptions & limits
Assumptions & limits
- Period, depth, selected linear model. Returns Phase and group velocities. All coefficients and observations are user supplied; results describe only the stated mathematical model. Quantities are deterministic calculations from supplied observations and assumptions; no external data is fetched. Supported limits: Finite inputs only; numeric fields bounded as labelled. Lists and JSON records are limited to 256 entries unless a stricter tool bound is stated. No automatic design approval, legal conclusion, treatment recommendation or safety certification. Wave period (seconds): minimum 1e-12, maximum 1000000000000.0. Water depth (m): minimum 1e-12, maximum 1000000000000.0. Gravity (m/s²): minimum 1e-12, maximum 1000000000000.0.
Are these inputs private?
These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.
Further reading
Background reading; this does not imply endorsement or independent review of SumFizz.