Sign-up for free online course on ANSYS simulations!Author: Rajesh Bhaskaran and Yong Sheng Khoo, Cornell University
Problem Specification
1. Create Geometry in GAMBIT
2. Mesh Geometry in GAMBIT
3. Specify Boundary Types in GAMBIT
4. Set Up Problem in FLUENT
5. Solve!
6. Analyze Results
7. Refine Mesh
Problem 1
Problem 2
Step 7: Refine Mesh
It our mesh refine enough? Will the current mesh give us an accurate representation of the physical flow? Mesh density determine the truncation error of our simulation. With too little mesh density, the result we obtain will be inaccurate. With too many mesh elements, we will be wasting unnecessary computational power (long computational time!). To get the optimum mesh density, we do mesh sensitivity analysis.
For this purpose, we will create three model with different mesh density. We will create a coarser mesh and a finer mesh and compare all the three meshes together.
Follow Step 1 through Step 5. At step 2, use the following edge mesh criteria instead.
[https://confluence.cornell.edu/download/attachments/103729331/step2_img001sm.jpg 
|^step2_img001.jpg]
Pressure Coefficient Comparison
Drag Coefficient Comparison
Go to Problem 1