How do I simulate a floor joist?

Open this page and use the live Open-Channel Flow tool below — set your inputs and the simulation runs instantly in your browser using real numerics. No install, no account needed.

Yes. The simulation runs free in your browser. A one-time unlock or a Pro plan adds advanced parameters, saved presets, data import, and clean exports.

Can I use my own numbers?

Absolutely — every input is adjustable, and with data import you can drive a floor joist from your own measurements.

Use case · powered by Open-Channel Flow

Open-Channel Flow for a floor joist

Simulate a floor joist live in your browser. This runs the real Open-Channel Flow solver — adjust the inputs, watch it respond instantly, and export the result. No install, no account.

For:Students Researchers Educators Engineers Hobbyists & Makers K-12 Students First Responders

Open-Channel Flow (Manning)Live

rivers, canals & storm drains

Controls

Presets

Channel width b (m)

Water depth y (m)

Bed slope S

Manning's n

Manning’s equation predicts flow in an open channel: V = (1/n)·R^⅔·√S, where R is the hydraulic radius and n the roughness. The Froude number tells you whether flow is tranquil (Fr < 1) or rapid. Educational tool.

▶ Run in Python

Data Inspector

Velocity1.73 m/s

Flow rate Q5.19 m³/s

Hydraulic radius0.600 m

Froude number0.55

Governing equation

Q = \frac{1}{n} A R^{2/3} S^{1/2} = \frac{1}{0.013} \times 3.00 \times 0.60 0^{2/3} \times 0.00 1^{1/2} = 5.19 m^{3} / s

Reading this result: Froude number 0.55 is below 1: the flow is subcritical (deep, slow, tranquil), so disturbances can travel upstream and downstream depth controls the flow.

Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.

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About this simulation

The full Open-Channel Flow tool models a floor joist with the same numerics engineers and scientists use — running entirely client-side. Change any parameter and the result updates in real time, so you can build intuition, check a design, or teach the concept without spreadsheets or installs.

More you can do with Open-Channel Flow

Open-Channel Flow for a cantilever balcony Open-Channel Flow for a bridge girder Open-Channel Flow for a roof rafter Open-Channel Flow for a steel beam Open-Channel Flow for a timber deck Open-Channel Flow for a crane boom Open-Channel Flow for a retaining wall Open-Channel Flow for a stair stringer

Other ways to simulate a floor joist

2D Fluid (CFD) for a floor joist 3D CFD for a floor joist 3D FEA Space Frame for a floor joist FEA Truss for a floor joist Meshing + BCs for a floor joist RLC Circuit for a floor joist

Frequently asked questions

How do I simulate a floor joist?: Open this page and use the live Open-Channel Flow tool below — set your inputs and the simulation runs instantly in your browser using real numerics. No install, no account needed.
Is it free?: Yes. The simulation runs free in your browser. A one-time unlock or a Pro plan adds advanced parameters, saved presets, data import, and clean exports.
Can I use my own numbers?: Absolutely — every input is adjustable, and with data import you can drive a floor joist from your own measurements.