Authors: Sebastien Lachance-Barrett (Cornell University) & Edwin Corona (University of Waterloo)
Problem Specification
1. Pre-Analysis & Start-Up
2. Geometry
3. Mesh
4. Physics Setup
5. Numerical Solution
6. Numerical Results
7. Verification & Validation
Physics Setup
Governing Equations
In the following video, we go into FLUENT and specify the governing equations that we will use.
Summary of steps in the above video:
- Fluent Launcher
- Select double precision
- Select parallel and choose the number of cores, I recommend using as many as you have but note that you need a special HPC license if you choose to use more than 4 cores.
- Models
- Edit viscous
- K-omega
- SST
- Edit viscous
- Cell zone conditions
- Edit Fluid
- Enable Frame Motion
- Specify angular velocity to be -2.22 m/s
- Edit Fluid
Boundary Conditions
We now specify the boundary conditions.
Summary of steps in the above video:
- Boundary Conditions
- Inlet
- Velocity magnitude: 12m/s
- Inlet-Top
- Component (X,Y,Z): (0,0,-12m/s)
- Blade
- Default, wall
- Periodic 1 and Periodic 2
- Change to Interface
- Inlet
- Mesh Interface
- Click Create/edit
- Name the mesh interface periodic
- Enable Periodic Boundary Condition
- Enable matching
- Type is Rotational
- Offset angle is 120 degrees
- Choose the interface zones to be periodic 1 and periodic 2
- Click Create/edit
The order in which the interface zones is selected matters because of how the offset is computed.
Make the first interface zone periodic 1 and second interface zone periodic 2.
Otherwise, you may get the error: Cannot intersect two interfaces.