Training Guide > Compressible Flow Tutorials > Transonic Flow over an Airfoil > Validating the Results

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Validating the Results

A graph showing the comparison between numerical and experimental data can be viewed by selecting the XY Plot 1 tab, as shown below with the X axis scale adjusted.


Other than the shock position, which is in error as a result of the mesh coarseness and choice of turbulence model, the numerical pressure coefficients compare well with the experimental data. The lift coefficient determined experimentally for this case is 0.743 [1]. To see the value calculated by STAR-CCM+:


In the Output window, a tab named Lift Coefficient Report will display the relevant report and show a lift coefficient of 0.728, which is within 2% of the experimental value. Similarly, the drag coefficient report will give a value of 0.0137, which also compares well to the experimental value of 0.0127.

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