Dhi Mike 21 'link'
Which specific module are you most interested in ()?
Tidal exchange, wind shear stress, barometric pressure gradients, wave radiation stresses, and river inflows.
For decades, has stood as the global industry-standard software suite for two-dimensional (2D) free-surface flow modeling. Developed by DHI (formerly the Danish Hydraulic Institute), this powerful computational tool simulates physics-based water environments to help professionals make data-driven engineering decisions. What is DHI MIKE 21?
A state-of-the-art third-generation model for simulating wind-generated waves and swell in offshore and coastal areas. dhi mike 21
The Digital Fluidity of MIKE 21: A Deep Dive into Coastal Modeling
The following is a short story set in the world of coastal engineering, where the software becomes a character in its own right.
Divided into cohesive (mud) and non-cohesive (sand) transport modules, this tool predicts morphological changes over time. Which specific module are you most interested in ()
Developed by the , MIKE 21 is a professional software suite used to simulate physical, chemical, or biological processes in coastal and marine areas. It operates primarily on a 2D mesh—either rectangular or flexible —to solve depth-integrated Navier-Stokes equations. Key Modules and Capabilities
Understanding MIKE 21 also involves its place within the broader DHI software suite. The combination of these tools provides unmatched flexibility for addressing complex water-related challenges.
At its heart, MIKE 21 is a two-dimensional, hydrodynamic modeling engine. Unlike simpler one-dimensional models that simulate flow only along a river channel, a 2D model solves the depth-averaged Navier-Stokes equations (specifically the Saint-Venant equations for shallow water). This means it simulates how water moves both horizontally across a landscape and through time, accounting for variations in depth, velocity, and direction. The software’s flexible mesh technology—most notably its use of a non-structured, cell-centered finite volume method—allows it to represent complex, irregular coastlines, islands, and man-made structures with far greater precision than traditional rectangular grids. This adaptive mesh refines resolution in areas of interest (e.g., around a bridge pier or a narrow inlet) while maintaining coarser resolution in deeper, less critical zones, balancing accuracy with computational efficiency. Developed by DHI (formerly the Danish Hydraulic Institute),
The Hydrodynamic module is the foundation of the MIKE 21 suite. It simulates water level variations and flows in response to a variety of forcing functions.
A third-generation wind-wave model, the SW module calculates the growth, decay, and transformation of waves, which is vital for designing offshore structures and analyzing coastal erosion [5.3].
Wave reflection, refraction, diffraction, breaking, and whitecapping.
"It's focusing the wave height," Elias said, his stomach dropping. "Look at the scale bar. We’re seeing significant wave heights of 2.5 meters inside the basin. That’s enough to snap the moorings."