Free Surface Quality
This report is available only for Volume of Fluid (VOF) multiphase simulations. You use this report to assess the quality (sharpness) of VOF interfaces.
In VOF simulations, ensuring interface sharpness is important for capturing the relevant physical phenomena. Therefore, assessing interface quality serves as an indicator of your simulation accuracy.
The Free Surface Quality is defined as the ratio of detected sharp interface cells to all detected interface cells (sharp or smeared). The identification of sharp and smeared cells is based on the Interface Detection that is part of the Volume of Fluid (VOF) Multiphase model.
The Free Surface Quality report returns a value between 1 (indicating a perfectly sharp interface) and 0 (representing a completely smeared or non-existent interface). You can plot the report to track the quality (sharpness) of the free surface within the domain. You can use this report to evaluate if the selected time-step, mesh resolution, or convection schemes are suitable for your simulation.
Additionally, the Free Surface Quality report can be used to compare the actual thickness of the interface with the sharpest representation that is achievable on the given spatial discretization. This feature makes the report suitable for serving as a trigger for the Volume Fraction Reinitialization model.
Free Surface Quality Report Properties
- Parts
- A list of regions that is used as the source for this report.