2D and 3D coast & sea modelling

kjhkjh jlkj lkjl lkj lkjlk jlkjlk jlkj lkjlk jlkj lkjlkj lkjlk jlkj lkjl kjlkj lkjlkj lkjl kjlkj lkj lkjl kjlkj lkj lkjl kjlkj lkjlk jlkj lkjlk jlkjl kjlkj lkjlk jlkj lkj lkj lkjl kjlk jlkj lkjl kjlkj lkjlk jlkj lkj lkjlk jlkj lkjlkj lkjl kjlkj lkjlkj lkj lkjl kjlkj lkjl kjlkj

Why choose MIKE 21 and 3 for coast and sea modelling?

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus.

Offers endless application possibilities

Hydrodynamics, waves, sediments, water quality and ship movements - they're all covered. No other modelling suite comes close to this range of application.

make every minute count

Access data and a wealth of first class modelling tools. Run fast simulations thanks to advanced parallelisation techniques for multi-core and GPU modelling.


Perform coupled modelling through the seamless integration with other MIKE modules. A Flexible Mesh (FM) simulation engine allows you to adapt the grid resolution of the model domain.

Have full confidence in the results

Robust, science-based and thoroughly tested in practice. Developed by professionals, for professionals who demand the best.

Get started with these integrated core modules

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus.

Transform raw data into an understandable format

Preprocessing & Postprocessing

Begin your data visualisation journey with an integrated work environment and compatible routines to ease data input, analyses and presentation of modelling results.

  • Create efficient model mesh using mixed elements
  • Convert wave spectra data into model format
  • Generate 2D time-varying hurricane or cyclone wind forcing files to perform storm surge modelling and more!

Model hydrodynamic processes in 2D and 3D


Accurately simulate water level variations and flows in response to a variety of forcing functions with this foundational module for modelling oceanographic, coastal and estuarine environments.

  • Use for any 3D free surface flow
  • Benefit from a Flexible Mesh engine, particularly suitable in areas with a high tidal range
  • Forms the basis for sediment transport simulations, spreading and dispersion studies and studies of water quality or ecological systems
  • Seamlessly represent storm surge caused by wind and pressure
  • Model sub-grid features such as culvert, weirs and dikes
  • Simulate wave driven currents
  • Couple with 1D river channel and 1D urban drainage network models for more robust studies


Advection Dispersion

Simulate the transport, dispersion and decay of dissolved or suspended substances. It is typically used in cooling water and wastewater discharge studies.

Add specialised modules to amplify the power of your software

The modular structure of MIKE Powered by DHI software offers the most advanced functionality with maximum flexibility as you can pick and choose which combination of modules are best suited for the nature of your work and intended outcome. Alternatively, select from one of our pre-bundled software subscriptions. From comprehensive water quality analyses to the simulation of marine mammal movements in response to underwater noise – we have you covered.

Agent-based modelling


Simulate the dynamic behavior of aquatic life and their interactions with the environment

Learn more

Agent-based modelling

Boussinesq Waves

Analyse wave disturbance in ports, harbours and coastal areas

Learn more

Ecological modelling


Investigate water quality concerns and their potential ecological impact

Learn more

Agent-based modelling

Mooring Analysis

Assess the dynamic effects of wind, currents and waves on moored vessels and other floating structures

Learn more

Agent-based modelling

Mud Transport

Study the impact of siltation on coastal morphology and water quality

Learn more

Agent-based modelling

Oil Spill

Quantify and visualise the risks and potential impact of an oil spill on the environment

Learn more

Agent-based modelling

Particle Tracking

Assess the potential impact of dredging, disposal and reclamation activities

Learn more

Agent-based modelling

Sand Transport

Analyse the effects of sedimentation on coastal and estuarine infrastructure

Learn more

Agent-based modelling

Shoreline Morphology

Model complex sediment transport processes and shoreline morphology

Learn more

Agent-based modelling

Spectral Waves

Predict and analyse wave climates in offshore and coastal areas

Learn more

Agent-based modelling

MIKE 3 Wave FM

Analyse the impact of a wave climate on offshore, coastal or port infrastructure

Learn more

Watch how easy it is to create and run a MIKE 21 HD model

Additional capabilities & unique features

• Single Grid, which is a classic rectilinear model that is easy to set up and with easy I/O exchange
• Multiple Grids, which is a dynamically nested rectilinear model with the ability to focus the grid resolution
• Flexible Mesh, which allows maximum flexibility for adapting grid resolution of the model domain

All Flexible Mesh and Single Grid engines support parallel processing. The Flexible Mesh (FM) engines show excellent performance when parallel processing is undertaken – also on a large number of computational cores. On multicore Windows computers, parallelisation is menu-driven and straightforward. The FM engines are also available for Linux, which gives the possibility to utilise High Performance Computing (HPC) systems. For the FM engines, the use of graphical processing units (GPU) is also supported and gives easy access to spectacular increases in simulation speed.

In addition to its variety of modules, MIKE 21/3 also includes a number of tools to optimise your work.
• Global tide data and tools for tidal analysis and prediction
• MIKE’s Climate Change Editor
• Cyclone wind generation and wind generation from pressure maps
• Advanced mesh and grid generators and editors
• Advanced tools for generation of graphical output
• An interface (API) for reading and modifying files in MIKE 21 or MIKE 3’s internal, binary format

MIKE C-Map offers model bathymetries generated fast and easy from an electronic chart database. MIKE ANIMATOR PLUS turns model results into amazing 3D video presentations.

MIKE 21 and 3 offer a choice of rectangular grid, nested grids or flexible meshes. This provides an optimal degree of flexibility in the representation of complex geometries and enables smooth representations of boundaries.

Well-functioning parallelisation techniques makes multicore execution efficient. Speed is further enhanced through the integrated use of GPU’s, engines that can execute under Linux and the possibility for execution under Microsoft Azure.

The FM series include a powerful, integrated system which, in a surprisingly easy manner, combines wave, flow and sediment transport models into a fully dynamic morphological model.

Create high quality boundary conditions automatically in a matter of minutes. This advanced online tool is a free premium feature for our SMA customers – Try it out today: https://boundary-generator.dhigroup.com

The MIKE3 flexible mesh hydrodynamics (HD) module includes both a non-hydrostatic (Navier Stokes equation) and hydrostatic (shallow water equation) solver. For modeling of internal wave generation due to density variation for example, the non-hydrostatic version is essential for capturing the correct behavior of the flow.

Model culverts, weirs and dikes to improve the accuracy and efficiency of morphodynamic simulations.

The simulation of outfall jets/plumes in a 3D environment is based on dynamic coupling of nearfield integrated jet solution and the farfield hydrodynamic flow model. This enables a user to accurately calculate the jet trajectory and rate of dilution in the nearfield region and incorporate the jet discharge into a Farfield flow model.

Both the full 3D Navier-Stokes equations (non-hydrostatic) and the 3D shallow water equations (hydrostatic) can be applied. Thus, the model consists of continuity, momentum, temperature, salinity and density equations and is closed by a turbulent closure scheme. The spatial discretisation of the governing equations is performed using a cell-centred finite volume method on triangular , quadrangular or mixed element domains, employing a shock-capturing Riemann solver to ensure robust and stable simulation of flows.

Accomplish this by making integrated near field-far field calculations with the Jet source.

Couple your coastal model with river channel and urban drainage networks to gain a more comprehensive understanding of the potential impact of coastal flooding on a community.

Integrated salinity and heat balance modules are included for coastal inundation simulations.

This capability makes MIKE 21 and 3 particularly applicable for global and regional sea scale applications.

If you are not yet an expert in 3D modelling, you do not have to go far for assistance. Expert support is available from any of our more than 30 offices around the world. It also gives access to other benefits of MIKE software products, including unparalleled technical support, training courses and access to DHI’s expertise and know-how regardless of where you are in the world.

Ready to get started?

Request a free trial of MIKE 21 or MIKE 3 or ask us for more details on how your project can benefit from this complete coast and sea modelling software package.