One of the most important steps in solving fluid flow problems using CFD is selecting and setting the correct boundary conditions that accurately represent what is happening in real-life. Boundary conditions provide information to the solver on the behavior of the fluid at openings and surfaces in the computational domain (or as the name suggests,
We all know that simulation is capable of providing insights into a large number of design iterations quickly and efficiently. This analysis exemplifies exactly that – and how the results allow selection of optimum designs prior to any physical testing. Of course, we can’t include the real results of the analyses – NDAs are important
In our previous blog, we described the turbulent energy cascade and the turbulent energy spectrum that characterizes a turbulent flow. To summarize, a turbulent flow consists of eddies (swirling regions of fluid) of different sizes. These eddies range from being a comparable size to the characteristic length of the system and being heavily geometry dependent,
One way to significantly reduce the size of an FEA job is to utilize symmetry. But how do we do it, and when can we apply symmetry? We’ll go over all that in this blog, as well as the cases of antisymmetry, asymmetry, and axisymmetry! When Can I Use Symmetry? When using the term symmetry
The popularity of CFD for industrial applications, as well as academic research to accurately predict fluid flow behavior, is ever increasing as technological advances are made in computing technology and speed (e.g., massively parallel supercomputers with GPU acceleration). Within the heart of these CFD simulations, two main methodologies exist: the Navier-Stokes approach and the Lattice
Before we dive deeper into turbulence modelling in CFD, it is crucial to understand the different scales of turbulence and the energy cascade. Let’s look at a brief overview of the energy cascade and the turbulent energy spectrum. The Scales of Turbulence A turbulent flow consists of eddies, which are swirling regions of fluid motion
Fluids are all around us, including the air we breathe, the water we drink, and the blood flowing in our body. Understanding how fluids interact with our surroundings allows us to harness their potential for endless applications in multiple disciplines. For example, reducing the air resistance/drag on cars and airplanes so we can travel faster
Fidelis is absolutely thrilled to announce that Jitesh Rane joins the team as our new Lead CFD Engineer! In this role, Jitesh will conduct CFD related project work, as well as leading our software sales and support efforts in the CFD space. We’re excited to tap into all of his experience gained both in academia
Introduction Shock Response Spectrum (SRS) analysis is used to calculate the peak response of a physical system subjected to shock loads in the frequency domain. This is a very useful, inexpensive tool that provides qualitative comparisons between preliminary designs. It is often essential in the fields of engineering, material science, and electronics where rapid transient
Tell me if you have heard this one before: “Which is better, CATIA or SolidWorks?” This question seems to come up often, at least often enough, that I decided to explore further. In the 3D CAD software space, Dassault Systèmes offers two of the top programs in CATIA and SOLIDWORKS. Both are excellent options, and
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