In today’s article, we will be finally looking at the pinnacle of CFD: Reynolds-averaged Navier-Stokes (RANS) turbulence modelling. If you have ever wondered not just what RANS is, but also how it works under the hood, then this article is for you. RANS turbulence modelling is so instrumental that no one can really claim to …
All you need to know about RANS turbulence modelling in one article Read More »
Regardless of whether you are a complete beginner in turbulence modelling and you are hearing the words Large Eddy Simulations (LES) for the first time today, or you are a seasoned CFD expert, I bet you that you have one thing in common: you will have gaps in your knowledge on LES. When you read …
The introduction to Large Eddy Simulations (LES) I wish I had Read More »
CFD is all nice and fun as long as we stay with 2D, laminar flows. As soon as we turn to 3D, turbulent flows, things start to get serious! Turbulence modelling is one of the most fundamental aspects of CFD, and if you want to have any chance of setting up a simulation that accurately models the …
The origin of turbulence and Direct Numerical Simulations (DNS) Read More »
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 »
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 »