MIKE 21 operates on two distinct spatial engines to discretize the water environment. Choosing the right engine impacts model accuracy and computational runtimes. 1. Classic Grid (MIKE 21)
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?
MIKE 21 is modular, allowing users to combine different engines depending on the project requirements. The software integrates hydrodynamic data with water quality, sediment transport, and wave dynamics.
┌────────────────────────────────────────┐ │ MIKE 21 Hydrodynamics (HD) │ │ (Base Module: Flows, Tides, RANS) │ └───────────────────┬────────────────────┘ │ ┌───────────────────────────┼───────────────────────────┐ ▼ ▼ ▼ ┌─────────────────┐ ┌─────────────────┐ ┌─────────────────┐ │ Spectral Waves │ │ Sediment │ │ ECO Lab / │ │ (SW) │ │ Transport (ST) │ │ Water Quality │ └─────────────────┘ └─────────────────┘ └─────────────────┘ 1. Hydrodynamics (MIKE 21 HD)
MIKE 21 is a global standard for coastal and environmental engineering. Researchers have used it to:
The foundation of the system, the , simulates the water level and flow velocity, taking into account forces such as wind, atmospheric pressure, tides, and bathymetry. It is the engine that drives other modules. 2. MIKE 21 Spectral Wave (SW) Module
The DHI Mike 21 technique offers numerous benefits, including:
It is a "one-stop-shop" for everything from coastal defense design (like seawalls) to analyzing the impact of marine sand mining or wave energy converters.
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Engineers use the software to design breakwaters, revetments, groynes, and marinas. By simulating wave transformation and tidal currents, they can optimize layout designs to minimize downtime from ship motion and prevent structural failures during extreme storms. Flood Risk Assessment and Management