Physics Setup

Launch Fluent

To launch FLUENT, first double click Setup under Project Schematic.

Check the option "Double Precision". This will make the simulation more accurate, since Fluent will use twice more bits in the calculations.

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You can leave the rest as Default. Now press OK to launch FLUENT.

The FLUENT window layout is basically divided into 4 zones:

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1) The left most column contain all the possible operations that one may want to perform to setup a simulation, like setting the boundary conditions, selecting the fluid used, and which simplifications to make.

We usually go from the first "General", one by one, until "Run Calculation". However in this tutorial we will have to break a little bit this symmetry to specify what is called "Interface Zones" (not (yet) shown in the list of options).

Here are just the main options; the actual "knob tweak" is made right next to it. Note that once you click in one item from the menu, a grey column appear right next to it showing more detailed options.

2) Sub-options for each main option selected from the left most column. Here we actually modify the way Fluent will behave.

3) The graphical window, showing at first launch the mesh. You can navigate on that using the left mouse button to Pan the mesh.

Drawing a box using the middle mouse button from left to right (either top or bottom) will zoom in, while drawing a box from right to left will zoom out.

The right mouse button will not often be used for our relative simple simulations. It displays the "surface group" the "id" and the "name" of the surface containing the point you clicked.

4) A mesh box where Fluent will print its operations, messages, warnings, iterations, results (as requested), etc.

Enough of talking! Let's start the CFD Simulation!

Check Mesh

It is always a good practice to check mesh, specially if you are importing mesh that wasn't created by you. It is not frequent to get matching errors, particularly when meshes with multiple Cell-Zones like our case.

In order to do that, you can click on Mesh > Check under the upper tab with options, next to File.

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You can also note that, when Fluent is first launched, the second menu box (described previously) contains the options for "General". There, on the first option you can see under "Mesh", the option for Check. You can see this in the above figure.

Lastly, you can type "mesh/check" and hit Enter in the messages box (number 4 from previous description).

ADD MATCH CONTROL TO MESH? (see wind blade tutorial) 
Import mesh as a wbpz file instead o msh? 

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