fluidsim

# FluidSim ## Overview FluidSim is an object-oriented Python framework for high-performance computational fluid dynamics (CFD) simulations. It provides solvers for periodic-domain equations using pseudospectral methods with FFT, delivering performance comparable to Fortran/C++ while maintaining Python's ease of use. **Key strengths**: - Multiple solvers: 2D/3D Navier-Stokes, shallow water, stratified flows - High performance: Pythran/Transonic compilation, MPI parallelization - Complete workflow: Parameter configuration, simulation execution, output analysis - Interactive analysis: Python-based post-processing and visualization ## Core Capabilities ### 1. Installation and Setup Install fluidsim using uv with appropriate feature flags: ```bash # Basic installation uv pip install fluidsim # With FFT support (required for most solvers) uv pip install "fluidsim[fft]" # With MPI for parallel computing uv pip install "fluidsim[fft,mpi]" ``` Set environment variables for output directories (optional): ```bash export FLUIDSIM_PATH=/path/to/simulation/outputs export FLUIDDYN_PATH_SCRATCH=/path/to/working/directory ``` No API keys or authentication required. See `references/installation.md` for complete installation instructions and environment configuration. ### 2. Running Simulations Standard workflow consists of five steps: **Step 1**: Import solver ```python from fluidsim.solvers.ns2d.solver import Simul ``` **Step 2**: Create and configure parameters ```python par...