In this article, we look at some more advanced concepts in CMake that will help you automate your build process from start to end. We first look at programming with variables, conditional statements, and loops, and then look at functions and macros, configure files, generator expressions, and finally policies. If you master these concepts, you …
Advanced CMake features to power up your CFD development Read More »
In this article, we take a deep dive into CMake and see how we can use it to compile two simple projects: one to generate an executable and another one to generate a static library. We will pick up these examples from our previous article and see how we can modify them to incorporate a …
In this article, we take a look at automating the software build stage using build and systems. We look at what options are available to us and why CMake, in particular, stands out as the most suitable choice for build automation. It enjoys the largest user base among all build systems, and chances are that …
How to use Makefiles to automate CFD solver compilations Read More »
CFD simulations are riddled with errors and uncertainties that we have to manage as CFD practitioners. The most commonly used technique to establish trust in our simulations is a grid convergence study, where the so-called grid convergence index is calculated. This value provides us with a measure of the mesh-induced uncertainty and, in many cases, …
How to manage uncertainty in CFD: the grid convergence index Read More »
Should you learn OpenFOAM? What are its biggest advantages and disadvantages? Having used and taught OpenFOAM since 2016, I have to say that my love/hate relationship with it has only grown over the years, and I find this solver fascinating, as it is quite a polarising CFD solver. So, I thought I would organise my …
Learn OpenFOAM: The Good, The Bad, And The Evil! Read More »
Computational Fluid Dynamics (CFD) is undergoing constant development, yet development stagnated during the early 2000s. This led to a flurry of reports and articles that highlighted the biggest challenges in CFD we face. Among them, the 2030 CFD vision report by NASA is one of the most thoroughly researched ones, highlighting six key challenges we …
In this article, we’ll explore ChatGPT’s capabilities to write CFD solvers from scratch. We’ll explore two types of applications: a simple model equation commonly used to study numerical schemes and a 2D CFD solver that hard-codes initial and boundary conditions but otherwise implements enough logic to be classified as a fully functioning CFD solver. We …
Any serious general-purpose CFD solver these days offers some form of support for graphics processing units (GPUs), be it accelerating the linear solver to speed up the computation of , or by offering a native GPU solver where the entire CFD solver is running on the GPU. The trend is going towards having native GPU …
Why is everyone switching to GPU computing in CFD? Read More »
In this article, we look at how we can annotate our code so it can be picked up by a documentation tool to provide automatic code documentation for us. There are good and bad ways to do this, and unfortunately, more often than not, code documentation is a dreaded task by programmers and is done …
How to annotate C++ code for automatic code documentation Read More »
