Instruction - geometry and mesh

Creat a channel (with wavy wall) geometry and mesh.

Creat vertex:

->zoom out (right hold and move the wavy wall near the bottom of the screen -> (on the right side) -> Operation -> Geomety ->Vertex -> Creat Real Vertex 1->Global x:0, y:1, z:0, label: v_upper_left, Appy-> Creat Real Vertex 2->Global x:1, y:1, z:0, label: v_upper_right

Creat edges:

-> in Operation, Geometry choose Edge ->Create Straight Edge -> choose (shift+left click) vertex v_upper_left and the most left vertex on the wavy wall profile - the choosen 2 vertex turn RED -> Label: inlet ->Apply ->repeat similarly to generate the outlet edge and the upper wall edgy

Creat face:

->in Operation, Geometry, choose Face -> Creat Face From Wireframe -choose (shift +left click) the four edges ->Label: fluid_face

Get ready for mesh:

->in Operation, Mesh, Edge, Link Edge Meshes -> choose inlet & outlet edges ->highlight Periodic ->Apply (this part is used to link the two edge for setup periodic BC)

Mesh edges

->in Operation, Mesh, Edge, Mesh edge ->choose inlet -> highlight Pick with links Reverse ->Grading highlight Apply ->Type: First Length (note for some old version, e.g in the Movie, you need to choose Last Length here, but the aim is to setup fine mesh near the walls) ->highlight Double sided -> Length 1: 0.0006; Length 2:0.0006-> Space Apply: choose Interval count 90-> Option Mesh ->Apply (you will note that outlet edge is also meshed ->Operation, Mesh, Edge ->Mesh Edge -> Grading unselect (or you can use Successive Ration 1) -> Spacing Apply -> Interval count 80->Option Mesh -> Appy ->repeat similarly for the wave wall.

Mesh face

->Operation, Mesh, Face -> Mesh Face -> choose the only face:fluid_face->Scheme Apply ->Elements ->Quad->Type Map ->Spacing unselect Apply ->Apply ->you will see a structured H-type mesh is generated.

Boundary Condition setting,

->Operation, Zones , Specify Boundary Types ->Action choose Add->Entity, Edeges, choose inlet & outle ->Type PERIODIC-> Name:in-outle->Apply -> Edges, choose upper_wall->Type: Wall ->Name:upper_wall->repeat similarly to setup the wavy wall as Wall.

Note alway save your data frequently (File-Save)

Output the mesh,

File->Export->Mesh->Browse to where you want to put the mesh file ->highlight Export 2-D (X-Y) Mesh (since here is a 2-D case)->Accepted.

Now the outputed *.msh mesh file is ready for Fluent to read in.

Updated: 07-Oct-2008