CaNS

CaNS#

CaNS (Canonical Navier-Stokes) is a simulator for massively-parallel numerical simulations of fluid flows. It aims at solving any fluid flow of an incompressible, Newtonian fluid that can benefit from a FFT-based solver for the second-order finite-difference Poisson equation in a 3D Cartesian grid.

CaNS has been built using OpenMPI 4.1.2 and FFTW 3.3.8. We’re currently operating on CaNS version 2.3.4 for CPU, with a GPU version slated for release in the near future.

Example#

import inductiva

# Set simulation input directory
input_dir = inductiva.utils.download_from_url(
    "https://storage.googleapis.com/inductiva-api-demo-files/"
    "cans-input-example.zip", unzip=True)

# Initialize the Simulator
cans = inductiva.simulators.CaNS()

# Run simulation with config files in the input directory
task = cans.run(input_dir=input_dir, 
                sim_config_filename="input.nml",
                n_vcpus=4)

task.wait()
task.download_outputs()

Closing Notes: CaNS requires input files to include a designated ‘data’ folder for storing simulation outputs.

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