Cavitation is the sudden formation and collapse of low-pressure bubbles in liquids by means of mechanical forces. This process can cause damage to turbines under certain operating conditions.

This category depends on selecting the Unit Power Table method (see “Unit Power Table”) and includes methods for dealing with the problem of cavitation on turbines.

This is the default, no action method.

This method allows the user to specify the regions of operation in which cavitation does not occur, so these regions can be avoided. These regions can depend on both operating head and tailwater.

See “Unit-level Constraints” for descriptions of added constraints.

See “Unit Head and Tailwater Based Regions” in Objects and Methods for slot descriptions.