Ogee-crested weirs are fixed weirs and form part of control structures. A flow transition to supercritical discharge occurs during flowing over the weir body. At the end of the weir downstream side, the supercritical discharge has a high flow energy. The excess part of this energy can cause damages. Therefore, energy should be dissipated, e.g. using a ski jump as weir outlet or a stilling basin.
HM 163.32 contains an ogee-crested weir with two different weir outlets (chute only and chute with ski jump).
The optionally available accessory HM 163.35 contains elements for energy dissipation to study further ways of energy dissipation.