CFD meshing methods | Computational Fluid Dynamics (CFD) Blog

How to Improve Pump Efficiency through CFD Simulations

Advancing our understanding of the fluid dynamics within a pump is of prime importance in improving pump efficiency and thus helping engineers to reducing the losses incurred during pump operation. Ansys has a robust end-to-end workflow to help designers in creating pumps from scratch. One example of how such a workflow helps improve pump efficiencies...

How to Shrink Wrap a biomedical STL file in Fluent Meshing

A How-To guide for Fluent Meshing's new Shrink Wrap tool which provides a powerful, easy-to-use solution for meshing complex STL geometries. This is a step-by-step guide on how to produce a high-quality CFD mesh for an abdominal aorta, imported in medium-resolution STL format (NIH).

Exciting advances in Wind Engineering using ANSYS CFD

Wind engineering requires engineers to consider how a building responds to its environment as well as the effect that the structure will have on the space around it. Learn more about the use of CFD in wind engineering...

Can CFD help to solve Australia’s greatest aviation mystery?

On a stormy night in August 1981, a Cessna Centurion 210 aircraft crashed with 5 people on board in Barrington Tops, a rugged and isolated national park north of Newcastle, New South Wales. Despite a massive initial search effort and ongoing attempts by a group of dedicated volunteers, the challenging and complex terrain has conspired...

Turbulence Part 5 - Overview of Scale-Resolving Simulations (SRS)

An increasing number of industrial CFD users are recognising the need to move away from RANS modelling and resolve a greater spectrum of turbulence (particularly in cases involving large-scale separation, strongly swirling flows, acoustics, etc.). Here we present an overview of Scale Resolving Simulation techniques and important considerations when considering applying SRS to your project.

Tips & Tricks: Estimating the First Cell Height for correct Y+

Note: this is an old post. The updated post series from 2020 is LEAP's 3-Part Series on "What y+ should I use in my simulations?" which is available here: Part 1 – Understanding the physics of boundary layers Part 2 – Resolving each region of the boundary layer Part 3 – Understanding impact of Y+...

Turbulence Part 4 - Reviewing how well you have resolved the Boundary Layer

In recent posts we have comprehensively discussed inflation meshing requirements for resolving or modeling wall-bounded flow effects due to the turbulent boundary layer. We have identified the y-plus value as the critical parameter for inflation meshing requirements, since it allows us to determine whether our first cell resides within the laminar sub-layer, or the logarithmic...

Turbulence Part 3 - Selection of wall functions and Y+ to best capture the Turbulent Boundary Layer

Note: this is an old post. The updated post series from 2020 is LEAP's 3-Part Series on "What y+ should I use in my simulations?" which is available here: Part 1 – Understanding the physics of boundary layers Part 2 – Resolving each region of the boundary layer Part 3 – Understanding impact of Y+...

10 key points covered in our CFD Meshing Tips & Tricks webinar

A quick thanks to the large number of customers in Australia and New Zealand who attended our July webinar on ANSYS CFD Meshing Tips & Tricks. We've had many enquiries from people wanting to know more, so we thought we'd break the content down into the 10 key points below. If you want more information on any specific...

Tips & Tricks: Global Meshing Controls in ANSYS

Welcome to the first in LEAP's series of CFD Tips & Tricks blogs. The topics for this first series of blog entries will focus on the selection of efficient and appropriate meshing methods, mesh sizing and mesh controls in ANSYS Workbench Meshing. Meshing is one of the most important influences on CFD simulation accuracy, although it...