In the last post of this series the general structure of a dictionary was introduced. We will now see the basic structure of entries. The first point to make is that entries in OpenFOAM® dictionaries can be of several types but they all follow the key/value format, at least in a broad sense.
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P. 2. The structure of dictionaries (Ep. 1)
Dictionaries are what OpenFOAM® uses as input files, but the same name is used to indicate some of the structures inside such files. In this part a general overview of their structure is provided.
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P. 1. Dimensional units in OpenFOAM
One of the first OpenFOAM features users encounter when they start learning how to set simulations up is that the code verifies the dimensional consistency of the variables involved in operations. Some details about this feature will be discussed in this post.
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A new series of blog posts
The new year brings some novelty and one of them is that I am starting a series of blog posts on various technical aspects in OpenFOAM®.
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VS Code extension for OpenFOAM
A useful VS Code extension for OpenFOAM dictionaries has been developed by Zhikui Guo. It adds color highlighting to the sections of an OpenFOAM dictionary.
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Contributing research work to open-source projects
As the main developer of OpenQBMM, an add-on for OpenFOAM which implements quadrature-based moment methods for the solution of generalized population balance equations, I have been recently involved in the transfer of the copyright on the OpenQBMM code base to the OpenFOAM Foundation, to be able to contribute the corresponding source code to them. I summarize here some motivations, lessons learned and some advice that may be useful to others who want to follow the same path. Why contribute? This is a question several have asked. Why contribute a code base that took four years of work to be build (and quite some nights, holiday, weekends too), including research, overcoming…
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Developing for OpenFOAM on Windows 10 – Part 3
Enabling support for graphical applications in WSL with Xming The Windows Subsystem for Linux does not officially support GUI applications. However, it is possible to successfully run several of them using a Windows-based X server as Xming. The steps to follow are simple: Download Xming (please, consider a donation to support the developer!) for your version of Windows Install it accepting the default settings Open the Ubuntu bash terminal and type echo "export DISPLAY=:0" >> .bashrc Load the settings with the command: source ~/.bashrc Test the setup as follows: Start the Xming server on Windows. An icon will appear in the notification areas Type paraview in the Ubuntu bash terminal.…
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Developing for OpenFOAM on Windows 10 – Part 2
Installing OpenFOAM on WSL – Ubuntu The installation steps for OpenFOAM on Ubuntu are straightforward because the OpenFOAM Foundation provides packages for Ubuntu which can be directly used in WSL. The following steps summarize how to rapidly set OpenFOAM-dev up on WSL. Open the Ubuntu bash terminal on Windows 10, and add the OpenFOAM repository and the corresponding signatures with the commands: sudo add-apt-repository "http://dl.openfoam.org/ubuntu dev" sudo sh -c "wget -O - http://dl.openfoam.org/gpg.key | apt-key add -" sudo add-apt-repository "http://dl.openfoam.org/ubuntu" Refresh the repository with the command: sudo apt-get update Install OpenFOAM-dev with: sudo apt-get install openfoam-dev Add the configuration file for OpenFOAM to bashrc with the command: echo "source /opt/openfoam5/etc/bashrc" >>…
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Developing for OpenFOAM on Windows 10 – Introduction
Windows 10 comes with the Windows Subsystem for Linux (WSL), which allows different Linux distributions to run under Windows. Currently Ubuntu, openSUSE and SUSE Linux Enterprise Server are available in the Microsoft Store, with Fedora expected to become available soon. When I started considering the option of ceasing the development of GeekoCFD, I have started exploring the possibility of using WSL for my development work. I am still testing this, and my virtual machine with openSUSE is still there. However, WSL looks promising. Thus, I thought of sharing the steps I have followed to set up my test environment, with a few tweaks to improve the experience. I have divided…
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GeekoCFD 7.1.0 now available!
I am pleased to announce the availability of GeekoCFD 7.0.1. This release brings updated packages to GeekoCFD, and is based on openSUSE Leap 42.1, as GeekoCFD 7.0.0. The following major changes were made: Updated packages OpenFOAM® 3.0.x from the OpenFOAM Foundation gmsh 2.13.1 eclipse neon System changes Removed custom configuration of the installer (control.xml) because now unnecessary. Thanks to Carlos F. Lange, who reported this to me. Enjoy 🙂 This offering is not approved or endorsed by OpenCFD Limited, the producer of the OpenFOAM software and owner of the OPENFOAM® and OpenCFD® trade marks. Alberto Passalacqua is not associated to OpenCFD Ltd.