2. Meshing : Generate an Unstructured Hexahedral Mesh

Small volumes meshing

Generate a mesh for one of the small volumes

MESH -> VOLUME -> MESH VOLUME

Select the volume at the top front of the burner geometry
Select Hex from the Element option under Scheme in the Mesh Volumes form and select Cooper from the Type option menu
Select the faces marked K and L as the Source faces cf burner
Retain the default Interval Size of 2 under Spacing in the Mesh Volumes form
Click the Apply button at the bottom of the form

Generate a mesh for the other small volume in the burner geometry

Select the volume at the side of the burner
Select Hex from the Elements option menu under Scheme in the Mesh Volume and select Cooper from the Type option menu
Select the faces marked M and N as the Source faces
Retain the default Interval Size of 2 under Spacing in the Mesh Volumes form
Click the Apply button at the bottom of the form

Meshing of in/out faces

Mesh the small face where the burner entrance and the burner chamber meet

Select the face marked P cf burner
Enter for the interval size under Spacing and click Apply button

Mesh the curved face along the entrance to the burner

Select the face marked Q cf burner
Retain the default Interval Size of 2 under Spacing in the Mesh Volumes form
Click the Apply button at the bottom of the form

Mesh the face at the entrance to the burner

Select the face marked R cf burner
Retain the default Interval Size of under Spacing in the Mesh Volumes form
Click the Apply button at the bottom of the form

Final meshing

Create a mesh for the rest of the volume of the burner

GAMBIT will automatically choose the right parameters

MESH -> VOLUME -> MESH VOLUME

select the remaining burner geometry in the graphics window
Click Apply at the bottom of the Mesh Volumes form

You can view a shaded display of the meshin using the Render Model command button in the Graphics/Windows control toolpad

Hold down the right mouse button on the Render Model command button and select Shaded from the resulting list
Rotate and translate the volume to view the mesh

Examine the quality of the Mesh :

Select EXAMINE MESH in the Graphics/Windows Control toolpad

Select the Plane option under Display Type
select EquiAngle Skew from the Quality Type option menu
Hold down the left mouse button on the X slider box and move it to view slices of the mesh with different x values
Use the Y and Z sliders to view slices in the y and z direction