300 Years ‘de Motu Aquae Mixto’: What Poleni Really Wrote and a New Overflow Theory Based on Momentum Balance

In 1717 Johannes Poleni (Poleni, 1717) published a book called De motu aquae mixto which we nowadays is cited as the origin of the famous Poleni weir formula. This book contained two separate booklets: The first booklet is on a general discharge theory for a water body consisting of a blocked dead water height at the bottom and a free flowing vivid water column above that dead water column. Examples for such a situation are the overflow over a weir or over dunes or the flow from deeper coastal water into a shallow tidal lagoon. He conducted several experiments using a well-designed device and derived by fitting his data a general discharge formulation depending on the dead and vivid water heights. In the following history of hydraulics the dependency on the dead water i.e. the weir height was forgotten and the Poleni formula is only cited in the form as we know it today

A Stratigraphic Soil Model for Coastal Morphodynamics

Sediment Transport and Morphodynamic

Development of a long-term morphodynamic model for the German Bight

Water Qualit

The simulation tool DredgeSim – predicting dredging needs in 2- and 3-dimensional models to evaluate dredging strategies

River engineeringNavigation waterways and dredgin

Forecasting the German Bight’s Morphodynamics: Development of a Tool for Longterm Coastal Management

Source: ICHE Conference Archive - https://mdi-de.baw.de/icheArchiv