https://github.com/dionhaefner/shallow-water

Powerful shallow-water implementations in pure Python
https://github.com/dionhaefner/shallow-water

Last synced: 1 day ago
JSON representation

Powerful shallow-water implementations in pure Python

• Host: GitHub
• URL: https://github.com/dionhaefner/shallow-water
• Owner: dionhaefner
• Created: 2020-02-13T09:07:37.000Z (over 4 years ago)
• Default Branch: master
• Last Pushed: 2023-08-17T09:03:08.000Z (about 1 year ago)
• Last Synced: 2024-06-11T16:39:20.814Z (4 months ago)
• Language: Python
• Homepage:
• Size: 7.46 MB
• Stars: 10
• Watchers: 3
• Forks: 2
• Open Issues: 1
• Metadata Files:
  • Readme: README.md

Awesome Lists containing this project

README

        
# Shallow-water modelling in Python

This repository contains two implementations of the shallow-water equations that are suitable to study a wide range of wave and ocean circulation phenomena, including non-linear effects.

They are a product of the [Bornö summer school 2018](https://nbiocean.bitbucket.io/bornoe2018b/), led by [Markus Jochum](https://www.nbi.ku.dk/english/staff/?pure=en/persons/437464) and [Carsten Eden](https://www.ifm.uni-hamburg.de/en/institute/staff/eden.html).

A preview of the non-linear setup:

![Nonlinear model spin-up](preview.gif?raw=true)

## Features

### Simple (linear) implementation

- Mass conserving on (Cartesian) Arakawa C-grid

- Mixed-time discretization

- Coriolis force on an f-plane

- Conditionally stable for `Δt <= √2 / f`

### Fully non-linear implementation

All features of the simple implementation, plus...

- Adams-Bashforth time stepping scheme

- Lateral friction

- Varying Coriolis parameter (β-plane)

- Fully non-linear momentum and continuity equations

- Energy conserving scheme by Sadourny (1975)

- Rigid or periodic boundary conditions

## Problems?

Feel free to [open an issue](https://github.com/dionhaefner/shallow-water/issues) or [submit a PR](https://github.com/dionhaefner/shallow-water/pulls)!