cfdrs-python
Python bindings for CFD-rs: High-performance computational fluid dynamics in Rust, exposed via PyO3 and Maturin.
The wheel includes cfd_python.pyi and the PEP 561 py.typed marker. The
long-running 1D bifurcation and legacy 2D Poiseuille calls convert Python
inputs before releasing the GIL around their Rust solver work.
The PyPI distribution is cfdrs-python; the Rust package is cfd-python and
the Python module is cfd_python.
Installation
cd crates/cfd-python
pip install maturin
maturin develop # Development mode (editable install)
# or
maturin build --release # Production wheel
pip install target/wheels/cfdrs_python-*.whl
Optional dependencies:
pip install "cfdrs-python[dev]" # pytest, matplotlib, pandas
pip install "cfdrs-python[validation]" # adds scipy and jupyter
Quick Start
import cfd_python
# 1D bifurcation solver
bifurc = cfd_python.BifurcationSolver(
d_parent=100e-6,
d_daughter1=80e-6,
d_daughter2=80e-6,
)
blood = cfd_python.CassonBlood()
result = bifurc.solve(flow_rate=3e-8, pressure=40.0, blood=blood)
print(f"Pressure drop 1: {result.dp_1:.2f} Pa")
print(f"Wall shear rate 1: {result.gamma_1:.2f} s⁻¹")
Available Classes
1D Solvers
| Class | Description |
|---|---|
BifurcationSolver / BifurcationResult |
Single bifurcation network |
TrifurcationSolver / TrifurcationResult |
Trifurcation network |
SerpentineSolver1D / SerpentineResult1D |
Serpentine channel resistance |
VenturiSolver1D / VenturiResult1D |
Venturi constriction resistance |
2D Solvers
| Class | Description |
|---|---|
PoiseuilleSolver / PoiseuilleResult / PoiseuilleConfig |
Poiseuille pipe flow |
Poiseuille2DSolver / Poiseuille2DResult |
2D Poiseuille flow |
VenturiSolver2D / VenturiResult2D |
2D Venturi constriction |
TrifurcationSolver2D / TrifurcationResult2D |
2D trifurcation |
BifurcationSolver2D / BifurcationResult2D |
2D bifurcation |
CavitySolver2D / CavityResult2D |
Lid-driven cavity (Ghia benchmark) |
3D Solvers
| Class | Description |
|---|---|
Bifurcation3DSolver / Bifurcation3DResult |
3D FEM bifurcation |
Trifurcation3DSolver / Trifurcation3DResult |
3D FEM trifurcation |
Poiseuille3DSolver / Poiseuille3DResult |
3D Poiseuille flow |
Venturi3DSolver / Venturi3DResult |
3D Venturi constriction |
Serpentine3DSolver / Serpentine3DResult |
3D serpentine channel |
Blood Rheology Models
| Class | Description |
|---|---|
CassonBlood |
Casson non-Newtonian model |
CarreauYasudaBlood |
Carreau-Yasuda shear-thinning model |
CrossBlood |
Cross model |
FahraeuasLindqvist |
Fåhraeus-Lindqvist effect |
Pulsatile Flow
| Class | Description |
|---|---|
WomersleyNumber |
Womersley number calculation |
WomersleyProfile |
Velocity profile for pulsatile flow |
WomersleyFlow |
Full pulsatile flow solution |
Features
- 1D/2D/3D CFD solvers unified under a single Python module
- Non-Newtonian blood rheology (Casson, Carreau-Yasuda, Cross, Fåhraeus-Lindqvist)
- Pulsatile Womersley flow
- Lid-driven cavity benchmark (Ghia et al.)
- Validated against analytical solutions
Documentation
See the crates/cfd-validation/ directory in the monorepo for comprehensive validation examples.
1 maintainer
Metadata
1 maintainer
Release files for cfdrs-python 0.3.0
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