Another cornerstone of object-orientated programming is inheritance, which is the ability to define parent-child relations between classes. Inheritance allows child classes to derive functions and variables from the parent class and so we are able to group together classes that naturally fit together under a common base class. For example, the base class RANS may …
How to handle inheritance and class hierarchies in C++ Read More »
Classes and structures are what make C++ so powerful compared to its predecessor C. While classes are, broadly speaking, just a logical collection of functions and data. This data is used by these functions, and so classes and structures offer no obvious direct benefit (other than organisational benefits). However, they do allow for a different …
Memory management is crucial in C++; it determines how quickly (or slowly) our code will execute. Poor memory management will destroy any advantage you gain by using a compiled language such as C++ and it is entirely possible that a slower, interpreted language will perform better here (see also the article on Compiled vs. Interpreted …
The complete guide to memory management in C++ for CFD Read More »
After discussing the differences between compiled, interpreted, and just-in-time compiled languages, I want to look at programming languages and discuss which ones are suitable and serious contenders for CFD solver development tasks. This is an opinionated section, and I am not trying to hide it. If you create a wish list of features a programming …
This page serves as documentation for the CFD Toolbox, a free Google chrome extension that can be downloaded from chrome web store. When we set up CFD simulations, there is a lot of input required. Some software may hide some of that from us and try to guess sensible default values, while other codes may …
CFD Toolbox: The CFD practitioner’s Swiss Army Knife Read More »
When you work on an existing CFD code, you can’t change the language and are stuck with whatever someone else decided before you would be a good choice (and I really hope it is not Fortran 77 in your case (brings back memories from my PhD days (sigh))). But if you are starting with a …
Choosing the right programming language for CFD development Read More »
All wall-bounded turbulent flows require knowledge about the y-plus (y+) values in our simulation, in order to accurately predict turbulent boundary layers and thus quantities such as drag coefficients and separation points. In this article, we take a deep dive into the significance of the y-plus (y+) value and how we can use it in …
The y-plus (y+) value and its importance for mesh generation Read More »
