MIKE by DHI UK and Ireland Blog

MIKE 21 OS FM: Oil spill modelling using flexible mesh
Date: Monday 08 September - Tuesday 09 September 2014
Location: Southampton, United Kingdom
Language: English

This two-day course teaches you the fundamentals of 2D oil spill modelling using flexible mesh, how to setup and model the fate and transport of oil using the MIKE 21 Oil Spill model (OS) FM.

Oil spills pose serious threats to water environments and place massive pressure on the entities that are responsible for the emergency response and clean-up operations, such as oil companies and national authorities.

The Oil Spill module simulates the spreading and weathering of suspended substances using a dedicated oil spill template. Oil spill modelling is important for emergency response planning and environmental impact assessment. Oil spill models predict the spreading and weathering processes acting on the spilled oil. Results can be evaluated with respect to the impacts on flora, fauna and selected species or habitats. Read more...

Click here to sign up for the training course!

Marine Renewable Energy



Dredging and Fine Sediments



Please note: The above videos are presented in a DRAFT form for information purposes only.

MIKE 21 Quick Start Guide (Flexible Mesh Series)

Over the past few months, we have prepared several short instructional documents in the use of the MIKE Zero Mesh Generator, MIKE 21 FMHD and MIKE 21 SW from a UK perspective. These instructions have been collated into the informal working document 'MIKE 21 Quick Start Guide' below: -


We have been working hard to enhance our User Manuals and Scientific Documentation. For example, the above informal guide can be augmented by our new Mesh Generator Step-by-step Guide (2012): -


How to Create a Directional Wave Spectrum for Input to MIKE 21 SW from Buoy Data

In order to make best use of the new Wave Spectra Converter tool available in Release 2012, some pre-processing of wave buoy data is generally required. In response to a number of recent enquiries, we have prepared the following informal guidance: -


Oil Spill Modelling

It is important to note that the methodologies of the old and new oil spill models in MIKE 21/3 are very different, and a direct comparison is difficult. However, in order to provide some basic guidance, we have developed the following comparison document and associated example models (provided here for information and discussion only): -

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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