FLOW36

Github Repository of FLOW36.
FLOW36 is a pseudo-spectral code for direct numerical simualtion of multiphase turbulence based on a phase-field model approach.

If you use this code, please cite the following work: \

A. Roccon, G. Soligo and A. Soldati
FLOW36: A Spectral solver for phase-field based multiphase turbulence simulations on heterogeneous computing architectures
Computer Physics Communications, 2025.

Main Developers:

G. Soligo (https://github.com/giovannisoligo)
A. Roccon (https://github.com/aroccon)

Modules available in FLOW36:

• Single-phase flow (NS): Turbulent channel flow, close and open configurations
• Phase-field method (NS + CH): Clean intergaces (surfactant-free): Standard CH + Profile and Flux-corrected
• Phase-field method (NS + CH1+ CH2): Surfactant-laden interfaces (possible use of the dual grid)
• Phase-field method + scalar (NS + CH + EE): Heat/mass transfer in drop- and bubble-laden flows
• Phase-field method + particles (NS + CH + LPT): Interface-particle interactions
• Single-phase + passive scalar (NS + EE): Heat transfer in single-phase turbulence
• Single-phase + particles (NS + LPT): Particle-laden turbulent flows
• Single-phase + temperature + particles (NS + EE + LPT): Particle-laden turbulent flows with temperature

Published works:

Click here for a list of the published works

Validation data and initial fields:

Click here for the validation data shown in the manuscript

How to:

See the handbook in the flow36_handbook folder

Packages/libraries required:

• Fortran compiler (tested wtth gfortran, ifort, nvfortran, ftn and xlf)
• MPI Library (tested with MPICH, Spectrum, IntelMPI, OpenMPI)
• FFTW library (for CPU runs)
• cuFFT library (for GPU runs, please install the Nvidia HPC-SDK)