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PhasicFlowPlus is a software package for simulating fluid-particle flows. It is a combination of computational fluid dynamics (CFD) and discrete element method (DEM). The fluid is assumed to be continuum phase and the particles as discrete bodies.

Here, DEM calculations are handled using features of PhasicFlow. It is a parallel DEM package that can be run on multi-core CPUs or GPUs. The equations for the fluid phase are discretized based on finite volume (FV) and solved using OpenFOAM. OpenFOAM is parallelized based on MPI for running on on multicore CPUs. The fluid-particle coupling (PhasicFlowPlus) uses both parallelization methods, shared-memory and MPI, to leverage the maximum computational resoureces.

Based on the above configuration, PhasicFlowPlus can use the computational resources of a multi-core CPU or use the computational resource of both CPU and GPU.

What is under development?

The following parts are being developed at the moment:

Coarse-graining for CFD-DEM
Resolved solver for CFD-DEM
Modifying some parts for better functionality and performance

How to build PhasicFlowPlus

Version-1.0

Version-1.0 is compatible with PhasicFlow-v-1.0 and OpenFOAM-v24. You need to install phasicFlow-v-1.0 and then install OpenFOAM-v24 on your computer. After that, follow the following steps to install PhasicFlowPlus.

Step 1: copy the source code into ~/PhasicFlow folder:

cd ~/PhasicFlow
wget https://github.com/PhasicFlow/PhasicFlowPlus/archive/refs/heads/main.zip
unzip -q main.zip
mv PhasicFlowPlus-main/ PhasicFlowPlus
# Note:
#   Instead of using wget, you could directly clone it in director ~/PhasicFlow
#   use the command: git clone https://github.com/PhasicFlow/PhasicFlowPlus.git

Step 2: build the software:

cd ~/PhasicFlow/PhasicFlowPlus
./Allwmake

Version-0.1

First, you need to install PhasicFlow-v0.1 and OpenFoam-v9 (For now, it is only tested with OpenFOAM-v9) on your computer. After that, copy PhasicFlowPlus-v0.1 on your computer. The PhasicFlowPlus folder should be located beside phasicFlow folder on your computer (in ~/PhasicFlow/ folder). Navigate to the root directory of the code and enter the following commands to install the code.

cd ~/PhasicFlow/PhasicFlowPlus/ 
./Allwmake

Core Developers and Contributors

PhasicFlowPlus is developed and maintained by a dedicated team of researchers and engineers specializing in computational fluid dynamics (CFD) and discrete element method (DEM). The core developers include:

Hamidreza Norouzi
Bahram Haddadi

Contributions from the community are highly encouraged. Contributors can submit bug fixes, new features, or documentation improvements through pull requests on the GitHub repository. In the current version, we also had contributors from (the list will be updated):

Alireza Hosseini
Nima Joghataie

License

PhasicFlow/PhasicFlowPlus

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