Friday, 6 July 2012
Previews of MIKE by DHI Release 2012

As in previous issues of our newsletter, we would like to disclose some previews of the upcoming MIKE by DHI software package 2012, which is scheduled to be released this September. The release will contain various new and exciting features, which we hope will improve your experience when using the software products, both with regard to usability, productivity, and enhanced applications.

MIKE 21: Rating curve boundary option in 2D overland flow models

Release 2012 introduces a new rating curve boundary option in MIKE 21.

Rating curves are relationships between water levels and discharges at a given boundary location and the calculation in MIKE 21 using rating curves therefore varies the calculated level at a boundary location in response to the outflowing discharge at that location. This functionality is new compared to existing options for defining boundaries in MIKE 21, where typically fixed or time varying values are applied for a state variable like water levels or flux. A similar Qh-boundary option has been available in MIKE 11 for a long time, and now becomes available with identical numerical functionality in all of the MIKE 21 engines (Rectilinear, Flexible Mesh, and Curvilinear) as well.

This new feature is particularly interesting for inland flood modelling, where boundary locations quite often do not have any recorded water level data. Instead, the relationship between level and discharge at the boundary location can be established and defined in MIKE 21 to allow for an alternative and flexible boundary option. Rating curves in MIKE 21 for boundary conditions are defined and saved in dfs0-files as illustrated below.

Click on the image to enlarge.


MIKE 11: Improvement of MIKE 11 mapping

A 2D-mapping feature has been available in several releases of MIKE 11 and used for generating 2D maps from either stand-alone MIKE 11 simulations or as a mapping feature for combined 2D and 1D results when running a coupled (MIKE FLOOD) simulation.

Feature improvements for outputs of 2D maps produced from combined 1D and 2D simulations are implemented in Release 2012. Primarily, bathymetry files combining both the surface and river topography can be made on-the-fly without any previously needed additional processing, but result files content from combined 2D and 1D simulations for e.g. flood mapping are also adjusted for improved results presenting and animations capability. The illustration below presents the combined 2D and 1D bathymetry at the left and a combined flood map result on the right side.

Click on the image to enlarge.


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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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