Terra at Aqua: Erosion Behaviour of Draghead

A draghead known as “the pilferer”, based on the principle of erosion, was invented by DEME dredging company.

Using the concept of van Rhee (2010) the erosion behaviour of this particular draghead was investigated.

The erosion rates created by the flow velocity along the seabed are calculated using potential flow theory.

Certain assumptions were made during the use of this theory.

These assumptions were validated in a Computational Fluid Dynamics (CFD) model using OpenFOAM.

The CFD model also gave a better understanding of the flow field of a draghead during the erosion process.

With these theories the productions of the erosion head were calculated and compared to reality.

Agreement between calculations and the real situation is promising.

The theory explained in this research can also be used to describe the erosion behaviour of other types of dragheads.

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Press Release, March 6, 2013

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3rd International Congress Hydraulic Engineering Structures and Dredging

Russia’s leading maritime industry Media Group PortNews (www.portnews.ru) holds a traditional annual Congress “Hydraulic Engineering Structures and Dredging” in Moscow. 

The two-day Congress includes the 7th International Forum of Dredging Companies and the 3rd Technical Conference “Modern Solutions for Hydraulic Engineering”.

Infrastructure development is among the real sources of Russia’s economy growth. Construction of port facilities and new hydraulic engineering structures on the country’s inland waterways constitute an essential part of all infrastructure projects. It is important to take into account the best international practices to implement these projects effectively.

The program of the Congress will be devoted to the latest technologies for dredging and hydraulic engineering works. Speakers and delegates will refer to real projects to discuss specifics features of dredging works, as well as dedicated fleet and equipment involved.

To learn more about event, please, contact the organizing committee: snitko@portnews.ru

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