Meshing in OpenFOAM by Divyesh Variya (DD Fluids)
- contributor: Divyesh Variya
- affiliation: Indian Institute of Technology, Bombay
- contact: click here for email address
- OpenFOAM versions: v2012
- Published under: CC BY-NC-SA license (creative commons licenses)
- YouTube channel: DDFluids
- LinkedIn Profile: DivyeshVariya
Contents
blockMesh
blockMeshDict [vertices|blocks|boundary]
Tutorial link: YouTube Tutorial
Description: A detailed overview explained in this tutorial using a lid driven cavity case. The three major sections of blockMeshDict are discussed with different hands on modifications.
Points covered:
- How to define vertices
- How to define block
- How to discretise a domain
- How to define physical boundaries
- How to scale geometry
blockMeshDict [edges]
Tutorial link: YouTube Tutorial
Description: An explaination of a sub-section edges of blockMeshDict is explained in this tutorial. How one can create an arc and polyline using edges section is discussed with hands on modifications.
Points covered:
- How to create a curved face
- How to create 3 point arc
- How to create a polyline
- How to create finer and smoother face
- How to add points from excel to blockMeshDict
blockMeshDict [simpleGrading]
Tutorial link: YouTube Tutorial
Description: To create finer mesh near a perticular face in blockMeshDict, simpleGrading is used. In this tutorial, few options of simpleGrading are explained for example, how to create finer grid near the single face and two faces.
Points covered:
- How to create finer grid near a face
- How to distribute geometry and no. of cells
- How expansion ratio work in blockMeshDict
