# getEffectiveHydrodynamicEvents

> Returns the hydrodynamic events that count for derivations: every event not retracted by a corrects reference. Retracted events stay in the file but are excluded from all derived values. Order is preserved.

> **getEffectiveHydrodynamicEvents**(`well`): `HydrodynamicEvent`[]

Returns the hydrodynamic events that count for derivations: every event
not retracted by a `corrects` reference. Retracted events stay in the file
but are excluded from all derived values. Order is preserved.

## Parameters

### well

`Well`

## Returns

`HydrodynamicEvent`[]