Project

WaveLab is a computer program for data collection and analysis in a wave laboratory. The focus is on the analysis of both long and short crested waves.

An experimental study of float design is carried out with scale 1:40 models. Through tests in a wave laboratory, horizontal and vertical wave forces are measured under different influences for a wide range of float types. Initially, the effect of the float geometry is measured for a restrained float. Subsequently, the effect of the float's anchoring system is described where movements of the float under wave influence are possible.

AquaBuoy is a buoy that can convert energy in ocean waves into electricity. AquaBuOY consists of a 9m high float with a diameter of 6m, under which is fixed a 25m long vertical tube with an inner diameter of 4m. AquaBuOY is designed to have large vertical movements in relatively small buoys. By mounting a special hose pump inside the long vertical tube, the wave energy can be extracted by utilizing the differential movements between the vertical tube and the water column inside the tube. The project primarily deals with the design and dimensioning of the anchoring system. AquaBuOY is being developed in collaboration with AquaEnergy Group, USA and Rambøll. (Morten Kramer, Thomas Lykke Andersen, Peter Frigaard, Anders Augustesen.)

The project concerns consultancy in connection with the construction of a new wave laboratory in Naples, Italy. The Department of Water, Soil and Environmental Engineering comments on the design and supplies software for data analysis and control of the wave machines. The project has been carried out for the 2nd University of Naples, Italy. (Peter Frigaard, Palle Meinert, Thomas Lykke Andersen)

The Doctoral Network (DN) “RESCUER“ (Resilient Solutions for Coastal, Urban, Estuarine and Riverine Environments) will focus on the training of young researchers (Fellows) in the general area of coastal oceanography, hydraulic and coastal engineering, applied mathematics, and scientific computation. The network will leverage advances in the numerical treatment of hydrodynamic equations in the past decade to create multi-physics models able to address pressing needs in practical modeling of various phenomena in the coastal zone with the goal of improving overall safety of coastal areas.

Ensuring the safety of property and commercial developments onshore and offshore requires an integrated approach, including phase-resolving wave modeling, tracking and mitigation of morphological changes, potential flooding in urban areas and monitoring of water quality. While protective structures and emergency plans for catastrophic storm waves and storm surges are well established, the confluence of global warming and sea level rise with other known natural risk factors and increasing human activity create a new set of hazards and requires new thinking in coastal modeling and the planning of mitigation strategies.

To address the challenges outlined above, we will rely on numerical techniques which are in each case tested against existing models and validated with experiments and field measurements. In our work with consulting companies and government agencies, we have identified a trend towards coupled models instead of traditionally used stand-alone models and a need for operational capabilities. These needs will be answered using new multi-physics models, state-of-the-art numerical methods, image recognition algorithms and innovative programming techniques such as GPU programming. The synergistic interplay of physical modelling, numerical analysis and large-scale simulation with lab experiments and field work plays an essential role in this network. Our project goes beyond the state of the art by improving existing numerical models, employing GPU programming and super-resolution techniques and building a unified suite of solvers that will allow us to address the multi-physics problems in coastal, estuarine, riverine and urban areas.

The primary goal of the project is to develop and make available data from Dansk Søfartstidende. The project has a particular focus on ship dispatches published in Dansk Søfartstidende in the years 1893-1962, and involves scanning, automated analysis and interpretation of data regarding Danish ships on arrivals and departures as well as other incidents for which notes are available. In addition to making the resulting data available so that they can be integrated into standard tools for representing digitized data, the plan is to develop a dedicated application that supports searches aimed at special studies based on, for example, time, place and context.

The project's results in the form of a database and dedicated search application primarily provide new opportunities for research, among other things, by virtue of the fact that individual ships or a shipping company's entire fleet can be followed and analyzed in time and space. Furthermore, new uses of maps and data visualizations in the dissemination of Danish maritime history are enabled. Finally, the project will make the complete publications of the Danish Maritime Journal available to the general public in a clear and easily accessible form through the M/S Maritime Museum.

Vessel propellers have reduced power efficiency with increased growth of barnacles and fouling, leading to an

increase in fuel consumption as high as 5%. SubBlue Robotics has developed an underwater propeller po-
lishing robot that allows for propeller polishing without the use of divers, and is capable of careful, precisepolishing of curved surfaces. As no divers are in the water, it can polish when the ship is loading and unloading

cargo, thus saving the shipowner valuable idling. Idling is the reason why the propeller polishing is often skip-
ped. The project will give technical robustness to the existing prototype, develop commercial grade components, and test the robot on commercial vessels. Leading partner is SubBlue Robotics, who has worked on

the designs and prototypes since 2016, the MMMI now IME institute at SDU provides knowledge on robots in harsh

enviroments, while shipowners DFDS and Maersk and diving company Odin Diving represent the market de-
mands the robot must meet. Three senior executives from CoGrow have invested in SubBlue Robotics, who

has just secured yet more capital and competences from two more investors.

The flow over ship propellers is under investigation. In particular propellers of unconventional geometry such as tip-fin propellers are being investigated, in particular with a view to improve efficiency and limit noise and vibration impacts. A comparative study of a tip-fin propeller and a conventional propeller is being carried out. Both propellers are designed for the same ship and the same service conditions. The examination is made theoretically as well as experimentally. The experiments include open water, self propulsion and cavitation tests.

The purpose of NextGen Robotics is to mobilize companies in the ecosystem for robots and drones and thereby ensure the continuation of the business lighthouse effort by contributing to innovation in SMEs within the business lighthouse's three strengths: Large structure production, advanced drones and autonomous coastal shipping.

Floating Power Plant (FPP) are a Danish company who develop a novel floating wind concept, with the foundation constructed using flat panels instead of cylindrical structures. Whilst this enables a fast-commercial roll-out due to the lack of competition for manufacturing facilities, a large contingency presently needs to be included in the design as hydrodynamic phenomena occur that are not well represented by industry-standard simulation tools. FPP have already taken the concept from the original idea of a Danish inventor, through a scaled offshore prototype in Danish waters to a multi-MW demonstrator (to be deployed in a parallel co-funded EU project).

This project will solve the final challenge for FPP, taking the technology from the multi-MW demonstrator stage to a cost-competitive mass-produced concept. The output will be three large demonstration activities and six innovations, including a commercially-ready simulation tool and two fully optimised commercial designs, WindFlex (a floating wind turbine with integrated hydrogen energy storage) and WindWaveFlex (a floating wind turbine with integrated wave energy converters and hydrogen energy storage).