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Author: Benjamin Mullen, Cornell University

Problem Specification
1. Pre-Analysis & Start-Up
2. Geometry
3. Mesh
4. Setup (Physics)
5. Solution
6. Results
7. Verification & Validation

Setup (Physics)

Update the Project and Open FLUENT

Before we open FLUENT, we need to update the project the import the mesh into FLUENT. To do this, click Update Project Image Added. When the project updates, double click Setup Image Added to open FLUENT.

Initial Settings

Before FLUENT launches, we will be prompted to set some options. In Options check the box next to Double Precision. If you have a dual processor, you can set the option under Processing Options to Parallel, and change the Number of Processes to 2.


Image Added

Once the options are set, click OK.

Problem Setup - General

Now, FLUENT should open. We will begin setting up some options for the solver. In the left hand window (in what I will call the Outline window), under Problem Setup, select General. The only option we need to change here will address the fact that pipe domain we created is axisymmetric. Under 2D Space, click the radio box next to Axisymmetric.

Models

In the outline window, click Models. We will need to utilize the energy equation in order to solve for the temperature. Under Models highligh Energy - Off and click Edit.... Now, the Energy window will launch. Check the box next to Energy Equation and hit OK.

Materials

In the Outline window, highlight Materials. In the Materials window, highlight Fluid, and click Create/Edit.... this will launch the Create/Edit Materials window; here we can specify the properties of the fluid. Set the Density to 1.2, the Specific Heat to 1000, the Thermal Conductivity to .02, and the Viscosity to 1.8e-5.