mrzhuzhe / taichi_dem

A minimal DEM simulation demo written in Taichi.

Tougong

《偷功》 is a song in old HongKong film composed by 胡伟立

Everybody in childhood want to use their bare hand to make a cyclone ball in their household washer after watching this film

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Demo

Mimnal Dem version

PBF version

Original Discussion

For futher imformation please reffer to this post : https://forum.taichi-lang.cn/t/topic/2975/16?u=mrzhuzhe

Run

python3 dem.py  # Yellow dem cyclone

python3 pbf.py # Blue position based fluid cyclone

python3 dem-3d-snode.py  # YelloW dem cyclone , for comparing, implement by taichi dynamic snode features 

Installation

Make sure your pip is up-to-date:

$ pip3 install pip --upgrade

Assume you have a Python 3 environment, to install Taichi:

$ pip3 install -U taichi

References

1. Position based fluid is implement based on

   Ten minutes physics https://matthias-research.github.io/pages/tenMinutePhysics/

   https://github.com/matthias-research/pages/blob/master/challenges/fluid2d.html

2. Taichi structured data organization Document

   Snodes https://docs.taichi-lang.org/docs/internal#data-structure-organization

   Dynamic snode https://docs.taichi-lang.org/docs/sparse#dynamic-snode