This CFD study focused on a detailed analysis of the cavitation in a water hydraulic valve for two specific opening positions.

The mesh was fully hexahedral and unstructured. The 3D CFD calculations were performed with FINE™/Open software. The barotropic law, implemented in FINE™/Open, was used to model the cavitation. Several operating points were computed for different cavitation levels.

The flow analysis showed that a blockage effect appeared for the smallest opening, due to the large cavitation pockets that developed in that case. The post-processing included static pressure, streamlines, density and void fraction contours in cutting planes.

The picture above shows the cavitation pockets for several calculations (void fraction isosurface displayed in blue color).

Share this article