Sign-up for free online course on ANSYS simulations!Author: John Singleton and Rajesh Bhaskaran
Problem Specification
1. Pre-Analysis & Start-Up
2. Geometry
3. Mesh
4. Setup (Physics)
5. Solution
6. Results
7. Verification and Validation
Exercises
Under Construction: Please go to Step 3 to download the geometry and mesh files.
Care to skip the geometry and meshing steps? README
If you would prefer to skip the geometry and mesh steps, then you can download the necessary files here. Download the "zip" file, then extract the files to your working directory. In order to load the necessary files, go to the Workbench Project Page, then (Click) File > Open > "Cylinder.wbpj". Lastly, click here to skip ahead to Step 4 of the tutorial.
2. Geometry
Fluid Flow(FLUENT) Project Selection
Drag Fluid Flow(FLUENT) into the Project Schematic window.
Analysis Type
(Right Click) Geometry > Properties
Set Analysis Type to 2D
Launch Design Modeler
(Double Click) Geometry
Create Inner Circle and Dimension
Create a circle, centered around the origin in the xy plane. Set the diameter of the circle to 1m.
Inner Circle Surface Body Creation
Concept > Surfaces From Sketches.
Set the Base Object to Sketch 1 (located underneath XYPlane in the Tree). Click Generate
Create New Sketch in the XY Plane
In this step we will create a new sketch on the XY Plane. This step is required for the boolean operation that we will carry out later in the geometry process.
Click on XYPlane in the Tree Outline and it should highlight blue. Then click on the New Sketch, 
.
Create Outer Circle and Dimension
Now, create a circle centered around the origin in Sketch 2. Set the diameter of the circle to 64m.
Outer Circle Surface Body Creation
In this step the Surface Body will be created as a frozen, such that it does not merge with the inner circle surface body.
Concept > Surfaces From Sketches.
Set the Base Object to Sketch 2 (located underneath XYPlane in the Tree). Then set Operation to Add Frozen as shown in the image below.
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Then, click Generate
Carry Out Boolean Operation
In this step, the inner circle will be subtracted from the outer circle in order to obtain the desired geometry.
Create > Boolean.
First, set Operation to Subtract. Next, use the face selection filter, 
, to apply the outer circle surface body as the Target Body. Then, use the face selection filter, , to apply the inner circle surface body as the Tool Body. Lastly, click Generate. At this point if you zoom into the center of the circle you should see the 1m diameter hole, as shown below.
Create a Bisecting Line
Click on XYPlane in the tree and it should highlight blue. Then, click the new sketch button, . In the new sketch draw a line on the y axis that goes through both of the concentric circles. Make sure that it is coincident to the y axis. Then trim the line segments that lay inside of the inner circle and the line segments that lay outside of the outer circle. This, is carried out by using the Trim feature located in the Modify portion of Sketching.
Line Body Creation
Concept > Lines From Sketches.
Set the Base Object to Sketch 3. (located underneath XYPlane in the Tree). Click Generate
Projection
Tools > Projection.
Apply the two lines that you created to edge and apply the surface body to target. You must do these steps by using the line selection filter and the surface selection filter. For the two lines hold down control to select them both. Click Generate.
Save Project and Close Design Modeler
Go to Step 3: Mesh
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