This run of POD_BASIS takes the INOUT_FLOW2 data and seeks 16 POD vectors.
Note, from the output file, the singular values associated with each POD vector, which indicate its relative importance:
| Vector | Singular value |
|---|---|
| 1 | 186.0343 |
| 2 | 35.8528 |
| 3 | 14.1401 |
| 4 | 9.1045 |
| 5 | 5.0126 |
| 6 | 3.2917 |
| 7 | 2.2768 |
| 8 | 2.0055 |
| 9 | 1.5510 |
| 10 | 0.9886 |
| 11 | 0.7986 |
| 12 | 0.6214 |
| 13 | 0.6026 |
| 14 | 0.4194 |
| 15 | 0.3391 |
| 16 | 0.2584 |
The main output of the run is the POD vectors, each in a separate file, which can be regarded as flow solutions:
Each of the POD vectors can be plotted by VECTOR_PLOT, using the xy.txt file from the CAVITY_FLOW database. I only plotted the first four:
You can go up to the POD_BASIS_FLOW page.