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MIKE 21 - 2D modelling of coast and sea

MIKE 21 là công cụ linh hoạt nhất cho mô hình ven biển. Nếu bạn cần mô phỏng các quá trình vật lý, hóa học hoặc sinh học ở vùng biển và ven biển thì MIKE 21 cung cấp đầy đủ các công cụ bạn cần.

MIKE 21 là công nghệ đã được kiểm chứng. Không có gói phần mềm mô hình nào khác được sử dụng thực tế cho nhiều dự án kỹ thuật biển và ven biển trên khắp thế giới như MIKE 21.

Những lợi ích của Mike 21

  • - Công nghệ đã được kiểm chứng và hơn 25 năm theo dõi hồ sơ của các ứng dụng dự án thành công. 

  • - Nó cho phép bạn linh hoạt tối đa, hiệu suất cao hơn và hoàn toàn tự tin vào kết quả phân tích tính toán.

  • - MIKE 21 thiết kế dưới dạng mô đun - bạn có thể mua những mô đun bạn cần mà không cần mua cả gói đầy đủ.

  • - Nó đi kèm vô số các công cụ tiện ích giúp tăng cường và dễ dàng mô hình hóa các khả năng có thể xảy ra.

  • - MIKE 21 không chỉ cung cấp công cụ phần mềm cho các dự án của bạn mà nó còn cho phép truy cập dữ liệu của các phần mềm MIKE khác, bao gồm hỗ trợ kỹ thuật, các khóa đào tạo...hay dữ liệu, tài liệu của HDI dù bạn có ở bất kỳ đâu trên thế giới. 

    Phần mềm Mike 21, Mike 21 bản quyền


các ứng dụng chính của mike 21

Dưới đây là một số các ứng dụng chính của MIKE 21:

  • - Thiết kế đánh giá dữ liệu cho kết cấu ven biển và ngoài khơi

  • - Tối ưu hóa bố trí cảng và các biện pháp bảo vệ bờ biển

  • - Thân tích nước làm mát, khử muối và tuần hoàn

  • - Tối ưu hóa các lối ra ven biển

  • - Đánh giá tác động môi trường của cơ sở hạ tầng biển

  • - Mô hình sinh thái bao gồm tối ưu hóa hệ thống nuôi trồng thủy sản

  • - Tối ưu hóa hệ thống năng lượng tái tạo

  • - Dự báo nước cho hoạt động hàng hải an toàn và giao thông thủy

  • - Lũ lụt ven biển và cảnh báo nước dâng do bão

  • - Mô hình dòng chảy nội địa và dòng chảy nội địa

Phần mềm Mike 21 Port, cảng biển

Phân tích neo đậu

Improve the efficiency of load operations for each specific berth

MIKE 21 Mooring Analysis (MA) allows you to perform highly precise moored vessel response assessment for single and multi-vessel systems. Ensure the safety of vessels and infrastructure with the ability to check mooring configurations under extreme conditions in ports and exposed location. More efficiently manage cargo operations between terminal-to-ship and ship-to-ship.


Easily simulate multi-body interactions

The intuitive interface of MIKE 21 MA makes it easy to simulate multi-body interactions and incorporate the quay shape to improve the accuracy of mooring calculations. The interface also simplifies offshore terminal calculations for the oil & gas industry by allowing ship-to-ship arrangements and for incorporating the exact wave climate.


Analyse automatic mooring systems

AutoMoor by Trelleborg algorithms are fully integrated into MIKE 21 MA allowing you to analyse automated mooring systems, model vessel motions and study passing vessel and long period wave effects further increasing port efficiency

Access a wide selection of prototypes for realistic vessel hull representation

In partnership with FORCE Technology, an additional 40 vessel prototype hulls (11 bulk carriers, 13 container carriers, 7 LNG carriers and 9 tankers) can be purchased as an enhancement to the 12 vessel prototype hulls included in the software package. By using the implemented scaling technique, users can now cover the entire range of vessel sizes between 70 and 400 m of length with confidence.

Include infragravity waves in your mooring analysis for the most comprehensive assessments

The seamless connection between MIKE 21 MA and MIKE 21 Boussinesq Waves (BW) and MIKE 3 Wave FM supports the inclusion of long period waves such as infragravity waves in your mooring analysis. This enables the consideration of the wave transformation not only from offshore to coast but also inside ports and terminals.

Thủy động học

Advanced 2D and 3D modelling of hydrodynamic processes

Hydrodynamic modelling is central in most modelling tasks in the marine area. Apart from being important in itself, it also forms the basis for a number of other tasks, such as sediment transport simulations, different kinds of spreading and dispersion studies and studies of water quality or ecological systems. Defining boundary conditions and bathymetries can pose important challenges for the modeller. Our MIKE 21 and MIKE 3 software come with a large number of tools that make the modelling process more easy, productive and safe.

The hydrodynamic (HD) module in both MIKE 21 and MIKE 3 solves the equations for the conservation of mass and momentum as well as for salinity and temperature in response to a variety of forcing functions. The HD module allows you to specify a variety of hydrographic boundary conditions, initial conditions, bed resistance and wind forcing. It also allows you to include different types of sources and sinks as well as a number of different structures. Density variations can be treated in different manners and radiation stresses from wave simulations can be readily included.

The hydrodynamic module integrated in MIKE 21 and MIKE 3 enables you to model:

  • Assessment of hydrographic conditions for design, construction and operation of structures in stratified and non-stratified waters

  • Environmental impact assessments

  • Coastal and oceanographic circulation

  • Optimisation of ports and coastal protection infrastructures

  • Lake and reservoir hydrodynamics

  • Cooling water, recirculation and desalination

  • Coastal flooding and storm surge

  • Inland flooding and overland flow

  • Forecast and warning systems


  • Flexible choice of rectangular grid, nested grids or flexible meshes

  • User-friendly tool - all features are supported by menus, manuals and examples

  • Includes a wealth of tools to enhance productivity, for example global tide data

  • Efficient parallelisation techniques, high performance computing and exploitation of graphical processing units (GPUs)

  • Seamless integration for coupled modelling, for example with wave and sediment transport modelling

Bồi lắng

Modelling all aspects of sediment processes in 1D, 2D and 3D

Detailed and timely knowledge of erosion, transport and deposition of sediments in the sea is crucial to a number of human activities. Amongst these are protection measures against coastal erosion, establishment and conservation of beaches, maintenance of depths in harbours, or control of sediment spreading from dredging operations. All of these activities experience a growing interest and today, modelling of sediment processes is more relevant than ever.

To effectively meet these challenges, our MIKE 21 (2D) and MIKE 3 (3D) software include three sediment modules that enable you to model all aspects of sediment transport. The Sand Transport (ST) module enables you to assess sediment transport rates and initial rates of bed level change for non-cohesive sediment resulting from currents or combined wave-current flows.

However, if you need to model erosion, transport and deposition of cohesive and cohesive/granular sediment mixtures, the Mud Transport (MT) module is the tool you need. This module also includes a dredging module, which allows dynamical simulations of all stages of the dredging process. Additionally, with the Particle Tracking (PT) module, you can describe the transport and fate of dissolved and suspended substances discharged or spilled anywhere within the water column.

Often coastline kinetics and littoral processes can be described adequately using a 1D approach. In such cases, our LITPACK software package is superior and highly efficient.

The sediment modules enable you to model:

  • Littoral processes and coastline evolution

  • Erosion, transport and deposition of cohesive sediments, such as mud

  • Sand transport dynamics

  • Dredging processes and monitoring of dredging work


  • User-friendly - all features supported by menus, manuals and examples

  • Includes a wealth of tools to enhance productivity

  • Efficient parallelisation techniques for high performance computing

  • Seamless integration for coupled modelling, for example with hydrodynamic and wave modules

Sinh thái & chất lượng nước

Modelling all aspects of water quality and ecological challenges

Knowledge of water quality and of the consequences of human actions is increasingly important. In many cases, numerical modelling is mandatory in order to obtain real knowledge concerning these complex systems. Nature and the complexity of ecological systems are highly variable and likewise, the appropriate modelling software must be able to handle these variations.

To cope with these challenges, our MIKE 21 and MIKE 3 software contains a series of modules, which in combination cover nearly the full range of possible water quality and ecological applications. The Advection Dispersion (AD) module enables you to describe transport, dispersion and decay of dissolved or suspended substances. Equally, but with a Langrarian approach, the Particle Tracking (PT) module allows you to model transport and fate of dissolved and suspended substances.

The Oil Spill (OS) module is designed to describe the movement and transformation of hydrocarbons spilled at sea. If you need to investigate complex ecosystems or systems, which need to be tailored to local conditions or species, our flexible MIKE ECO Lab is the tool you need. However, if you need to address challenges beyond the scope of more traditional water quality and ecological models, ABM Lab enables you to carry out agent based modelling, such as investigating coral spawn, eelgrass succession patterns, or different types of migration patterns.

The ecological modules in MIKE 21 and MIKE 3 enable you to model:

  • Dispersion studies, such as cooling water, brine and wastewater

  • Oil spill movement and transformation

  • Complex ecosystem behaviour, for example of eutrophication, heavy metals, xenobiotics or of the system that you define

  • The fate and behaviour of living organisms (Agent based modelling)


  • User-friendly - all features supported by menus, manuals and examples

  • Includes a wealth of tools to enhance productivity

  • Efficient parallelisation techniques for high performance computing

  • Unmatched flexibility and versatility


Wave modelling in oceans and coastal areas

Wave modelling is an integral part of many activities related to the sea and today it is more important than ever. Design and installation of offshore structures, renewable energy devices at sea, harbours and other structures all require investigations of wave conditions. Wave modelling also form the basis for a number of activities in coastal engineering, such as studies of coastal morphodynamics and beach restauration. For many years, DHI has been a pioneer in wave modelling and today we offer the most advanced and proven professional modelling tools.

Our 2D wave modules include MIKE 21 Spectral Waves (SW) and MIKE 21 Boussinesq Waves (BW)MIKE 21 SW enables you to simulate growth, decay and transformation of wind-generated waves and swells, whereas MIKE 21 BW is a state-of-the-art tool for analysing wave disturbances in ports, harbours and coastal areas. Both modules are highly user-friendly, well-documented and solid. Also, both modules come with a series of tools that makes it easier and more productive to design models, establish bathymetries and boundary conditions and analyse and show results.

The wave modules integrated in MIKE 21 enable you to model:

  • Wave disturbance in ports and harbours

  • Off shore wave conditions

  • Wave input for studies of littoral transport and coastal morphodynamics

  • Wave conditions as part of Environmental Impact Assessments (EIA)

  • Wave forecast and hindcast


  • User-friendly with all features supported by menus, manuals and examples

  • Includes a wealth of tools to enhance productivity

  • Efficient parallelisation techniques for high performance computing

  • Seamless integration for coupled modelling, for example with hydrodynamic and sediment transport modelling


Increasing performance with graphical processing units

A key issue in numerical modelling is the computational speed. Improvements in calculation speed make it possible to execute larger models or to undertake more simulations within a given time frame. This is highly relevant both in research environments and in professional engineering departments.

The use of graphical processing units (GPUs) is a very efficient and cost-effective way to speed up simulations and as of release 2014 we have made it possible to use GPUs with our MIKE 21 FM HD software and with the Flexible Mesh solver with MIKE FLOOD software. We also support the use of multiple GPUs on Windows PCs.

Depending on the model setup and the type of GPU, the speed-up can be a factor 100 or more compared to running the same simulation on a single processor CPU*. Going from one to four GPU cards yields another factor of up to three – leading to a total speed-up in the range of 300. Additionally, the largest speed-up factors kick in when you really need them – for large model meshes of one million elements or more.

For more detailed information about performance, please view the benchmark reports.


  • MIKE 21 GPU uses the latest graphical processing units - hardware that is otherwise typically used for speeding up computer games

  • Significant increase in speed at a very competitive price

  • Available at no extra cost to all owners of corporate licences of MIKE 21 or MIKE FLOOD with valid software maintenance agreement (SMA)

Simulation speed (speed-up factor) for a high resolution Mediterranean model with and without 4 GPU cards (MIKE 21 FM running single precision, first order scheme).

* The speed-up of more than 100 has been achieved using a two core HP workstation with Intel® Core™ i3-2120 Processor (2 core, 3.30 GHZ), 8 GB of RAM and a GeForce GTX TITAN card. The operating system was Windows 7. Results for other GPU cards are available in the benchmark report.

Hiệu suất & tính toán

Increasing performance

Simulation speed is a key issue in many modelling software applications. Speed improvements give you the possibility to use more refined models, or to undertake more model runs within a viable timeframe. At DHI, we are aware of this and have developed different types of performance improvements for many years.

We have introduced parallelisation in many of our products, particularly in those that most often have long simulation times. Parallelisation permits you to split the simulation work on several processors and thus obtain shorter simulation times. Solutions are developed for Windows PCs and for cluster computers and can also support the use of Graphical Processing Units (GPUs).


The computational engines of our MIKE 21 and MIKE 3 software are available in two parallelised version – one with shared memory (OpenMP) and one with distributed memory architecture (MPI). The parallelised versions result in much faster simulations with many cores.


You can run your simulations with MIKE 21 and MIKE 3 on a high performance computer (HPC), which means that you can speed up your simulations significantly. Depending on your model setup, the speed-up can be close to linear - meaning that simulations run close to 500 times faster on 600 cores than the same simulations run on a single core.

Contact us for more information about performance improvements.


Agent based modelling

In this one-day, hands-on course you will receive an introduction to AMB ('Agent Based Modelling') Lab and how to set up simple agent based models in the MIKE FM modelling complex.

The ABM Lab module allows you to formulate agent based models within the MIKE FM series of hydrodynamic environments of the MIKE by DHI framework. ABM Lab is a flexible numerical laboratory where you can define agents, their behaviour and their states. The Lagrangian ABM Lab can work with hydrodynamics alone or it can be combined with the Eulerian MIKE ECO Lab in order to make the agents react to water quality parameters.

ABM Lab allows you to address questions that are beyond the scope of traditional water quality models. Therefore, agent based modelling has received much attention in recent years.


  • Fundamentals of ecological modelling

  • Introduction to MIKE ECO Lab/ABM Lab and dialogue overview (working with the editor; integration to HD engines)

  • Guidelines for ecological model development

  • How to set up MIKE ECO Lab/ABM Lab

  • Calibration and validation procedures

  • Trouble-shooting advice

  • Hands-on exercises

    • to construct your own basic ABM model

    • to set up and run MIKE 21/3 ECO Lab simulations (FM series)


Professionals in environmental engineering and management working with shallow inland lakes or coastal areas. You should have a background in applied water quality aspects and/or biology and preferably with experience in MIKE ECO Lab either through experience or through following the course 'MIKE 21/3 ECO Lab - 2D and 3D water quality and ecological modelling' prior to the course.

It is also an advantage if you have knowledge of the MIKE 21 and MIKE 3 FM modelling complex.


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