PPolySim OS
For Engineers · Coastal Erosion

Coastal Erosion for a dust bowl

Built for engineers using it for real design work. Go from concept to a running model in the browser, then scale to the cloud when needed. Simulate a dust bowl live below — adjust the inputs and watch it respond, right in your browser.

Tsunami PropagationLive

Controls

Presets

A tsunami is a shallow-water wave even in the deep ocean, travelling at √(g·h). Over 4 km of water that is roughly 700 km/h — jet speed — yet only tens of centimeters high. As it reaches shallow coast it slows and its amplitude grows as h^(−1/4) (Green's law), piling into a destructive wall.

▶ Run in Python

Data Inspector

Current speed0 km/h
Deep amplitude0.5 m
Coastal amplitude0.0 m

Governing equation

Reading this result: At 4000 m depth the pulse moves at ~713 km/h; Green law shoaling then amplifies its 0.5 m deep-water height as it nears the coast.

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

2

Spatial Interpolation

open full solver →
Spatial Interpolation (IDW)Live

Controls

Presets

Given scattered measurements — rainfall gauges, soil samples, air-quality sensors — inverse-distance weighting estimates values everywhere in between. Each sample's influence falls off with distance raised to a power: a low power gives smooth, blended surfaces; a high power makes each sample dominate its neighborhood in sharp bull's-eyes. The workhorse of GIS mapping.

▶ Run in Python

Data Inspector

Samples8
Power p2.0
Characterbalanced

Governing equation

Reading this result: At power 2.0 nearby samples win but distant ones still contribute — a balanced surface between smooth and spiky.

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

or unlock everything with Pro →

More with Coastal Erosion

Frequently asked questions

Is this good for engineers?
Yes — this version of "Coastal Erosion for a dust bowl" is framed for engineers using it for real design work. Go from concept to a running model in the browser, then scale to the cloud when needed.
Do I need to install anything?
No. It runs in any modern browser, free, with no account required.