Authors: John Singleton and Rajesh Bhaskaran, Cornell University
Problem Specification
1. Pre-Analysis & Start-Up
2. Geometry
3. Mesh
4. Physics Setup
5. Numerical Solution
6. Numerical Results
7. Verification & Validation
Exercises
Comments
Numerical Results
See below for tips on how to zoom in, zoom out etc.
Velocity Vectors
Results > Graphics and Animations > Vectors > Set Up...
Then click Display. The Scale was set to 2 in the plot below.
Stream Lines
Results > Graphics and Animations > Contours > Set Up...
Set Contours of to Velocity.. and set the box below to Stream Function. Make sure Filled is not selected and click Display. The plots below were created by setting levels to 40, deselecting Auto Range, setting Min (kg/s) to 31 and setting Max (kg/s) to 33.
Vorticity
Results > Graphics and Animations > Contours > Set Up...
Set Contours of to Velocity.. and set the box below to Vorticity Magnitude. Then click Display. The plot below was created by by setting levels to 60, deselecting Auto Range, setting Min (1/s) to 0.25 and setting Max (1/s) to 9.
Drag Coefficient
Reports > Result Reports > Forces > Setup
Then, click Print. The command pane will now display the following results: the pressure force, the viscous force, the total force, the pressure force coefficient, the viscous force coefficient and the drag force coefficient. As one can see from the following image link, FLUENT yields 2.04 for the value of the drag coefficient.
Manipulating the Model
Some of the operations available in the graphics window are:
Translation: The model can be translated in any direction by holding down the Left Mouse Button and then moving the mouse in the desired direction.
Zoom In: Hold down the Middle Mouse Button and drag a box from the Upper Left Hand Corner to the Lower Right Hand Corner over the area you want to zoom in on.
Zoom Out: Hold down the Middle Mouse Button and drag a box anywhere from the Lower Right Hand Corner to the Upper Left Hand Corner.