Tuesday, 7 August 2012
Numerical modelling of moored vessel motion

DHI has developed the moored vessel response model WAMSIM. The WAMSIM model is an advanced numerical modelling software package designed to support decision makers with fast, accurate and cost effective predictions of motions and mooring forces affecting floating structures. The forcing comes from combined wind, current and wave action. The influence of breakwater and quay structures on the waves is included in the forcing via the hydrodynamics model. Using this tool enables operators to adopt effective mitigation measures early in the feasibility and design processes.

WAMSIM utilises the combined strength of MIKE by DHI’s wave and hydrodynamic models and the industry standard vessel response model WAMIT® by WAMIT Inc. WAMSIM provides time domain predictions of all motions and mooring forces, and can be used to produce informative 3D visualizations, for easy visualisation and result interpretation. The accuracy of WAMSIM has been thoroughly validated against field and laboratory measurements, and have been successfully utilized on projects at a across the globe.
Numerical Modelling of Moored Vessel Motion-DHI Solution

Predicting scour in offshore wind farms

Our research into long-term scour predictions has borne fruit in the form of a specialty tool - WiTuS. With WiTuS, it is now possible to model long-term predictions on scouring around monopile type foundations – structures which form the bases of majority of the current and planned offshore wind farms.

Offshore wind farm establishment is an expensive affair. To add to it, there has been no system in place to predict scouring effects on monopiles over long time spans. Lack of predictability has been forcing investors to spend more on hefty protection measures, to shield monopiles against scouring. This significantly adds on to already heavy investment costs. Read more.

Learn more about WiTus in our new case story.

Oil Spill Modelling

Oil spills pose a serious threat to the marine environment and can have dramatic impacts. With our state-of-the-art knowledge and modelling tools we can assist you in predicting these impacts and help you prepare the proper response at the right time.

Check out our new solution flyer to learn more.
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Integrated Surface and Groundwater Model Review and Technical Guide

The Ontario Ministry of Natural Resources has published a guideline report evaluating the applicability of integrated surface and groundwater hydrologic models including MIKE SHE, GSFLOW, and HYDROGEOSPHERE. While tailored to Ontario watersheds, UK users of MIKE SHE may find the report of interest.

"While integrated models are able to provide a more complete representation of hydrologic processes, they have not yet seen widespread application within Ontario. To address this knowledge gap, the Ontario Ministry of Natural Resources initiated a study to determine the applicability of integrated hydrologic models to Ontario watersheds. The report includes: a qualitative comparison of several integrated model codes; the application of multiple integrated model codes to two case-study watersheds; and guidance to water resource practitioners on how to develop and calibrate an integrated model." from WaterBudget.ca (2011)

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Welcome to DHI UK

DHI is an independent, international consulting and research organisation with the global objective of advancing technological development and competence with respect to water, in all of its environments.

Worldwide, we offer a wide range of consulting services and leading edge technologies, software tools, environmental laboratories, and physical model test facilities, as well as field surveys and monitoring programmes. Designated as a not-for-profit organisation, DHI is able to invest a considerable portion of its resources in research and development. Today we co-operate with many Universities, and research organisations, and are recognised globally for our innovation and expertise.

In the UK, DHI offers niche or specialist consultancy services in the water and environment market to government agencies, commercial entities and selected research organisations. We fulfil a research based specialist advisor role; a ‘Consultant to the Consultants’. We also supply and support the renowned MIKE by DHI suite of integrated water modelling tools.

MIKE by DHI software is the result of years of experience and dedicated development and has, in many regions, become the standard modelling tool. It transforms our science into practice and gives you the competitive edge and, through the DHI Academy, you can rest assured that there is a local team of highly skilled experts committed to train and support you every step of the way.

MIKE by DHI truly models the world of water - from mountain streams to the ocean and from drinking water to treatment plant and beyond.

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