Poul Scheel Larsen

Poul Scheel Larsen

Professor Emeritus

DTU CONSTRUCT
Department of Civil and Mechanical Engineering

Technical University of Denmark

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News from DTU

2022
22 APR

Flow through a bare sponge skeleton is not informative about how flow moves through live sponges

The deep-sea glass sponge Euplectella aspergillum is well known due to its beautiful lattice-work structure, and has attracted interest in its solid and fluid mechanical properties. In a recent paper, we argue that including sponge tissue is key in understanding the hydrodynamics of these beautiful animals, and an analysis of their hydrodynamics...

2020
03 DEC

Sponge pumps and evolution of the sponge body plan

Pumping units in most sponges possess a gasket structure ensuring efficient pumping and filtration. However, some sponges lack such structure in their pumping units and it is an open question how they manage to pump and filter. In a recent eLife paper, we address this significant puzzle by demonstrating an unusual flow pattern that accomplishes...

2019
NSTC
09 DEC

Challenged by the Sea

The sea is a demanding opponent, constantly impacting and challenging offshore structures. It takes a robust design to ensure a long service life of, for example, offshore wind turbines or platforms, which needs to stay operational for many years. Therefore, DHRTC has developed a design for a near shore test center, which is now in tender...

Energy and supply Fossil fuels Energy production Geology Mapping and surveying Raw materials and raw materials exploitation Chemistry Ships and offshore constructions
Flagellates
10 JAN

Why are some flagellates living in a ribbon case?

Choanoflagellates are filter feeders and an important component of microbial foodwebs. Because they are theancestors of multicellular life, they have been intensely studied. Some species build an elaborate external ribbon structure. Its function is unknown but we demonstrate that it may significantly increase prey capture efficiency...

https://www.tkboe.aqua.dtu.dk/publications/person?id=2233&cpid=&tab=7
2 MAY 2024