Examples
Examples
Try the starting example
- Interval inflows (m³/s)
- 2,4,3,1
- Timestep (seconds)
- 60
- Storage curve levels (m)
- 0,1,2
- Storage at those levels (m³)
- 0,1000,2500
- Outlet flows at same levels (m³/s)
- 0,2,5
- Initial level (m)
- 0.5
- End-level/storage/outflow trace (JSON)
- [[0.553571428571,553.571428571,1.10714285714],[0.708545918367,708.545918367,1.41709183673],[0.793344569971,793.344569971,1.58668913994],[0.761914794617,761.914794617,1.52382958923]]
- Final storage (m³)
- 761.914795
Try another scenario
- Interval inflows (m³/s)
- [3, 4, 3, 1]
- Timestep (seconds)
- 60
- Storage curve levels (m)
- [0, 1, 2]
- Storage at those levels (m³)
- [0, 1000, 2500]
- Outlet flows at same levels (m³/s)
- [0, 2, 5]
- Initial level (m)
- 0.5
- End-level/storage/outflow trace (JSON)
- [[0.607142857143,607.142857143,1.21428571429],[0.75637755102,756.37755102,1.51275510204],[0.83605138484,836.05138484,1.67210276968],[0.800045879321,800.045879321,1.60009175864]]
- Final storage (m³)
- 800.045879
Calculation method
Calculation method
End-level/storage/outflow trace (JSON)
Implicit-Euler level-pool continuity Snext+Δt Qout(hnext)=Sprevious+Δt Qin; invert monotone supplied storage/outlet curves, reject storage overflow.
Final storage (m³)
Implicit-Euler level-pool continuity Snext+Δt Qout(hnext)=Sprevious+Δt Qin; invert monotone supplied storage/outlet curves, reject storage overflow.
Symbols and units
- a
- Interval inflows (m³/s)
- b
- Timestep (seconds)
- c
- Storage curve levels (m)
- d
- Storage at those levels (m³)
- e
- Outlet flows at same levels (m³/s)
- f
- Initial level (m)
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
- User-supplied measurements and assumptions; Implicit-Euler level-pool continuity Snext+Δt Qout(hnext)=Sprevious+Δt Qin; invert monotone supplied storage/outlet curves, reject storage overflow. Supported limits: Finite numeric values bounded to 1e9 magnitude; lists and tables contain 1–100 records unless a stricter bound is stated. Inputs use the units shown. Lists explicitly paired by a method must have matching lengths; independent polynomial coefficient vectors may differ. Respect stated physical, interpolation, policy and computational domain limits.
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.