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Is It Always The Mesh? Part 2: Skewness
Quite often I hear complaints about skewness, and how it’s worthless even trying to run a solver on a mesh etc. The point of this series of posts is to give you an overview of the popular myths and to help you understand what’s going on in your Finite-Volume CFD code...
Is It Always The Mesh? Part 1: Discretisation Basics And Mesh-Quality Metrics
Quite often I hear complaints about non-orthogonality and skewness, and how it’s worthless even trying to run a solver on a mesh, etc. The point of this series of posts is to give you an overview of the popular myths and to help you understand what’s going on in your...
Multi-Domain Meshing With CF-MESH+
1. Introduction Computational Fluid Dynamics has undergone rapid development in the last two decades. The problems that can be solved with it range from simple laminar flows to very complicated multi-phase flows including heat exchange. CF-MESH+ multi-domain feature...
The Outer Boundary Layer
Introduction The outer boundary layer is a very useful option in our boundary layer library. Mostly it is used in aerodynamic and heat transfer applications, where a fine boundary layer near the wall is desired. Its role is to provide a smooth transition between the...
Feature Edges With CF-MESH+
1. What are feature edges The feature edges are surface mesh sub-elements whose existence is often very important in the meshing process – where they are treated as constraints. These are the sharp corners/edges in the domain which, when specified as feature edges,...
Shell and Tube Heat Exchanger
This case study shows the methodology for the generation of multi-material meshes in heat exchangers. In most cases, the device is designed by many engineers, resulting in imperfect CAD data with overlaps and self-intersections. CF-MESH+ does not require perfect CAD...