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  • Flat Plate Boundary Layer - Verification & Validation

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Let's repeat the solution on a finer mesh. For the finer mesh, we will use increase the total number of elements(cells) by a factor of four. In order to accomplish this, we double the number of divisions on each section. In the Workbench Project Page right click on Mesh then click Duplicate as shown below.


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https://confluence.cornell.edu/download/attachments/85624049/DupMesh_Full.png


Rename the duplicate project to FlatPlate (mesh 2). You should have the following two projects in your Workbench Project Page.



Next, double click on the Mesh cell of the FlatPlate (mesh 2) project. A new ANSYS Mesher window will open. Set the Number of Divisions to 100 for the edge sizing along the plate and the far-field. Set the Number of Divisions to 120 for the two other edge sizing. Under Outline, expand Mesh and click on Edge Sizing, as shown below.
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Under Details of "Edge Sizing", enter 10 100 for Number of Divisions, as shown below.
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https://confluence.cornell.edu/download/attachments/85624049/10DivSet_Full.png
. Next set the number of divisions for Edge Sizing 2 and Edge Sizing 3 to 120. Then, click Update to generate create the new mesh.
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The new mesh should now have 1000 12000 elements (10 100 x 1001200). A quick glance of the mesh statistics reveals that there is indeed 1000 12000 elements.
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https://confluence.cornell.edu/download/attachments/85624049141036304/DetMesh2MeshStat1_Full.png


The refined mesh has thus been created. Exit the


Compute the Solution

Close the ANSYS Mesher to go back to the Workbench Project Page. Under Laminar Pipe Flow (mesh 2), right click on Fluid Flow (FLUENT) and click on Update, as shown below.


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https://confluence.cornell.edu/download/attachments/85624049/UpdateMesh2_Full.png


Now, wait a few minutes for FLUENT to obtain the solution for the refined mesh. After FLUENT obtains the solution, save your project.

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