Gambit -- SAILBOAT GEOMETRY

http://www.cadfamily.com/a/CAE_FEA_CFD/Gambit/Gambit----SAILBOAT-GEOMETRY_7035.html

In this tutorial you will import a STEP file that describes the geometry of a sailboat hull.

You will split the hull along the symmetry plane, create a flow volume around the hull,

apply size functions that allow the mesh to capture the detail of the hull curvature, create

first-height/aspect-ratio-based 3-D boundary layers around the hull, and use a special

operation to pre-mesh and view the 3-D boundary layers. Finally, you will mesh the

volume with prism and tetrahedral elements using an algorithm that will automatically

apply meshed size functions on the boundary layer caps.

The combined use of aspect-ratio-based 3-D boundary layers and automatically applied

meshed size functions on the boundary layer caps is especially useful when meshing geometry for external aerodynamics or other flows around bluff objects, such as that illustrated by this tutorial. The combined features aid in capturing near-wall physics while

creating a high-quality unstructured mesh in the flow volume.

In this tutorial you will learn how to:

• Import a STEP file

• Align volumes

• Split faces

• Split volumes and perform Boolean volume subtraction operations

• Create and apply curvature size functions

• Mesh faces using a triangular pave meshing scheme

• Create and view aspect-ratio-based 3-D boundary layers

• Apply a meshed size function on boundary layer caps

• Mesh a volume using a tetrahedral meshing scheme

• Prepare the mesh to be read into FLUENT 5/6

15.1 Prerequisites

This tutorial assumes that you have worked through Tutorials 1, 2, 3, and 4.