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  • Flat Plate Boundary Layer - Pre-Analysis & Start-Up

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Author: John Singleton and Rajesh Bhaskaran, John Singleton, Cornell University

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

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For an external flow like this, one needs to determine where to place the outer boundary. For the flat plate we will use a rectangular domain. The height of the rectangular domain will be determined by the expected boundary layer thickness. For a flat plate boundary layer, one can use the following approximation.



When x = L, = 0.05m. For the height of the domain, ten times the boundary thickness will be used. Thus, the height of the boundary will be set to 0.5m. The following figure shows the dimensions of the domain, and the boundary labels which will be used to set the boundary conditions.

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Start ANSYS FLUENT

Prior to opening ANSYS, create a folder called FlatPlateCFD in a convenient location. We'll use this as the working folder in which files created during the session will be stored. For this simulation FLUENT will be run within the ANSYS Workbench Interface. Start ANSYS workbench:

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