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|Jupyter Notebook||Jupyter Notebook|
|MIT License||GNU General Public License v3.0 or later|
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Which one is best for numerical simulations for fluid mechanics [mostly linear terms].
3 projects | /r/CFD | 3 May 2023
Poisson's Equation is the most powerful tool not yet in your toolbox
3 projects | news.ycombinator.com | 6 Jul 2021
There are many different ways to do what you'd like. The easiest starting point would probably be this tutorial: https://github.com/barbagroup/CFDPython
But that won't handle turbulence. The real "turbulence problem" is that computing actual turbulent flows requires enormous computational resources. So instead of solving the Navier-Stokes equations, related equations with lower computational cost are solved. Because of how these equations are developed, they require modeling of "unclosed" terms, and this is a likely source of inaccuracy.
If you want something relatively simple, you could take the RANS approach and use the Spalart-Allmaras model:
2 projects | news.ycombinator.com | 6 Feb 2021
I sniff an air of condescension; what’s your goals therein? Are you posturing your ‘maths’ knowledge?
I thought I was explicit in my criticism of “notation only” explanations, but perhaps a positive example would be more explicit.
This repo explains computational fluid dynamics (an example of a complex system!) from “what is a python function” to “2d Navier stokes”.
It shows the work of how to discretize ‘latex beautified’ notation, shows the relationship between the computations and the notation, and even explains when their LaTex strays from “conventional use of notation” and why.
The authors even throw in traditional handwritten board lecture videos if that helps you learn better.
complexityexplained reads like it’s written by the Spider-Man points at Spider-Man meme.
AeroPython: Classical Aerodynamics with Python
2 projects | news.ycombinator.com | 24 Jan 2021
See also by the same professor CFD Python: 12 Steps to Navier-Stokes: https://github.com/barbagroup/CFDPython
What are some alternatives?
AeroPython - Classical Aerodynamics of potential flow using Python and Jupyter Notebooks
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Nalu - Nalu: a generalized unstructured massively parallel low Mach flow code designed to support a variety of open applications of interest built on the Sierra Toolkit and Trilinos solver Tpetra solver stack. The open source BSD, clause 3 license model has been chosen for the code base. See LICENSE for more information.
py - Repository to store sample python programs for python learning
Flow - Flow is a sparse grid-based fluid simulation library for real-time applications.
poisson-canvas - Explore poisson equation with HTML canvas
research - A catchall repo for holding research issues, papers, and works in progress
ML-Workspace - 🛠 All-in-one web-based IDE specialized for machine learning and data science.
PythonDataScienceHandbook - Python Data Science Handbook: full text in Jupyter Notebooks
jax-cfd - Computational Fluid Dynamics in JAX