simphony-jyulb

Internal and file-IO based JYU-LB engine-wrappers for the SimPhoNy framework.

Repository

Simphony-jyulb is hosted on github: https://github.com/simphony/simphony-jyulb

Requirements

• simphony-common >= 0.2.2

• cython

• JYU-LB >= 0.1.1

Note

simphony-jyulb uses keywords (COLLISION_OPERATOR, REFERENCE_DENSITY, GRAVITY, FLOW_TYPE, EXTERNAL_FORCING) which currently do not belong to the CUBA-keywords.

simphony-jyulb treats the BC data component as a dummy variable (currently there is no SimPhoNy definition for BC).

Installation

The package requires python 2.7.x, cython and JYU-LB header and source files along with simphony-common package to build and install cython extension. To get the required files clone the repository and install dependencies:

# Clone recursively
git clone --recursive https://github.com/simphony/simphony-jyulb.git

# Install required dependencies
pip install -r requirements.txt

The next step is straight forward and is based on setuptools:

# build and install
python setup.py install

or:

# build for in-place development
python setup.py develop

Note

In case of changes to JYU-LB repository run the below command to fetch the changes:

# Get submodule's changes
git submodule update --remote

For more information on git submodules see: https://git-scm.com/book/en/v2/Git-Tools-Submodules

JYU-LB installation

These engine-wrappers use JYU-LB fluid flow simulators and the related source code.

The JYU-LB source code is available on github: https://github.com/simphony/JYU-LB

The file-IO based engine wrapper assumes that there is an executable called "jyu_lb_isothermal.exe" that can be found in the PATH and an exception is thrown if this is not the case.

For convenience there is a shell script called install_external.sh which is included in this repository. Running this script will install the executable. Default installation path points to /usr/local/bin/ but it is possible to pass it via --prefix parameter (should be absolute path):

# Install jyu_lb_isothermal.exe to `/usr/local/bin/` with super user rights
sudo ./install_external.sh

# Install to a custom path
./install_external.sh --prefix=/home/username/.local/bin

One can add the custom path to the environment (~/.bashrc):

export PATH=$PATH:/home/username/.local/bin

Testing

To run the full test-suite run:

python -m unittest discover

Directory structure

• jyulb -- to hold the wrapper implementations
• jyulb/fileio -- to hold the file-IO based wrapper implementations
• jyulb/internal -- to hold the internal wrapper implementations