Blar i Institutt for bygg- og miljøteknikk på tidsskrift "Proceedings - International Conference on Port and Ocean Engineering under Arctic Conditions"
Viser treff 1-20 av 22
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CFD Modeling of Local Scour Around a Pair of Tandem Cylinders under Wave Conditions
(Journal article; Peer reviewed, 2015)Local scour in a marine environment can lead to the failure of offshore and coastal structures. This is also the case, when marine infrastructure is built in Arctic conditions. The knowledge and understanding of erosion ... -
CFD Simulations of Roll Motion of a Floating Ice Block in Waves using REEF3D
(Journal article; Peer reviewed, 2015)Floating ice blocks in waves are generally seen in managed ice and in marginal ice zones. Detailed investigations into the hydrodynamics of a floating ice block provides insight into the interaction of floating ice with ... -
Challenges with sea ice action on structures for Offshore wind
(Peer reviewed; Journal article, 2023)EU urgently needs to increase the development of secure and green energy, and this includes renewables such as Offshore wind energy. An expansion of Offshore wind will include the Baltic where sea ice is one of the major ... -
Experimental and Micro-CT study on the Oil Distribution in laboratory grown Sea Ice
(Journal article; Peer reviewed, 2017)Increasing activities in Arctic waters bare a risk of oil spills under ice-covered conditions and afford sound understanding of the interplay between sea ice and oil. Towards better knowledge, this study focuses on X-ray- ... -
Glacial Ice and Offshore Structure Impacts under Wave and Current Excitation
(Journal article; Peer reviewed, 2019)Bergy bits and growlers (i.e., glacial ice features with a waterline diameter < 15 m) travelling with waves can pose great threats to offshore structure and ships operating in the high North. It is generally more difficult ... -
Ice drift and ice action on offshore wind farm structures
(Peer reviewed; Journal article, 2023)Development of offshore wind farms has so far been focused on areas without sea ice, but the increasing demand pushes the offshore wind industry into areas with seasonal sea ice, such as the Baltic Sea, the Great lakes and ... -
Ice intelligence retrieval by remote sensing - Possibilities and challenges in an operational setting
(Journal article; Peer reviewed, 2017)Detecting ice drift velocity when operating offshore in ice-covered waters is crucial during marine operations, as ice actions affect station keeping and ice management. Furthermore, other ice data/intelligence such as ice ... -
Ice thickness estimates for design of structures
(Peer reviewed; Journal article, 2023)The level ice thickness is perhaps the most important ice property in both engineering and geophysics. Ice action from level ice scales almost linearly with ice thickness and the level ice thickness gives the mode in ice ... -
Medium-scale consolidation of artificial ice ridge – Part I: surface temperature, thickness and mechanical properties
(Journal article; Peer reviewed, 2019)This paper is describing preparations and methods of medium-scale ridge consolidation experiment and development of ridge and surrounding level ice morphological, thermal, and mechanical characteristics for the experiment, ... -
Medium-scale consolidation of artificial ice ridge – Part II: Fracture properties investigation by a splitting test
(Journal article; Peer reviewed, 2019)Sea ice’s fracture properties are in general difficult to measure and there is still on-going debate on the proper way to conduct valid measurements. Among many controversy fracture test conditions, the size of the test ... -
Minimum requirements to ice management barrier systems
(Journal article; Peer reviewed, 2019)Ice management (IM) is defined as all activities carried out with the objective of mitigating hazardous situations by reducing or avoiding actions from any kind of ice features to a protected unit (e.g. a drilling vessel). ... -
Mosideo/cirfa tank experiments on behavior and detection of oil in ice
(Journal article; Peer reviewed, 2019)In the Arctic, presence of sea ice presents a challenge to safe and sustainable operations. To optimize planning and minimize impact of inadvertent oil spills, oil-in-ice experiments were performed at the HSVA Arctic ... -
Mosideo/cirfa tank experiments on behavior and detection of oil in ice
(Journal article; Peer reviewed, 2019)In the Arctic, presence of sea ice presents a challenge to safe and sustainable operations. To optimize planning and minimize impact of inadvertent oil spills, oil-in-ice experiments were performed at the HSVA Arctic ... -
Oil saturation of the sea ice pore space
(Journal article; Peer reviewed, 2015)Observations have shown that oil spilled under sea ice collects in patches within the under-ice relief and is encapsulated in the growing ice sheet. Due to its lower density, compared to seawater brine, oil will migrate ... -
Pilot study of ice-structure interaction in a pendulum accelerator
(Journal article; Peer reviewed, 2015)More knowledge on the coupled response of ice and structure in collision in which both bodies undergo permanent damage is needed. These types of experiments are challenging to perform in a laboratory at relatively high ... -
Probabilistic assessment of ice rose diagrams for ice drift in the beaufort sea
(Journal article; Peer reviewed, 2019)The intention of this paper is to introduce the ice rose diagram, which is a graphical tool that makes it possible to display the ice drift speed, the occurrence frequency, and the drift direction at a particular location ... -
Sentinel-1 sar observations of peak wavelength and dominant wave direction in the marginal ice zone of the barents sea
(Journal article; Peer reviewed, 2019)Synthetic aperture radar (SAR) has proven to be a very important source of data in the Polar regions because it covers large areas continuously, independent of the weather and time of day. In this study, we make use of ... -
The Determination of Heat Transfer Coefficient on Water-ice Surface in a Free Convection
(Journal article; Peer reviewed, 2017)In ice ridges consolidation, the convective heat flux term comes critical due to the larger contact areas and surface temperature differences compare with those from level ice. In this paper, a submerging experiment was ... -
Thermodynamics and Consolidation of Ice Ridges for Laboratory Scale
(Journal article; Peer reviewed, 2017)First-year ice ridge interaction with structures often gives highest loads and can be modelled in controlled environment in ice basins. Five laboratory experiments were performed to study model-scale first-year ice ridge ... -
Toward a holistic load model for structures in broken ice
(Journal article; Peer reviewed, 2015)Over the past decade we have seen an increase in marine operations in Arctic waters. Despite research and work on several offshore standards and ship rules, the ice loads on fixed and floating structures are not fully ...