Dhi Mike 21 |top|

| | Specific Module | Primary Function & Application | | :--- | :--- | :--- | | Hydrodynamics | Hydrodynamic (HD) Module | Simulates water level changes and flows (currents) driven by tides, winds, waves, river inflows, and atmospheric pressure. The foundation for all other modules. | | Hydraulics | Advection-Dispersion (AD) Module | Models the transport, mixing, and degradation of dissolved substances like salinity, temperature, and coliform bacteria. | | Hydraulics | MIKE ECO Lab / Oil Spill | An advanced ecological modelling tool that describes complex biological and chemical processes. It can simulate everything from eutrophication and algal blooms to the fate of oil spills. | | Hydraulics | Inland Flooding | A dedicated option within the HD module for simulating two-dimensional overland flow, crucial for inland flooding and urban drainage studies. | | Sediment Transport | Mud Transport (MT) Module | Models the erosion, transport, and deposition of cohesive sediments like silt, mud, and clay under currents and waves. | | Sediment Transport | Sand Transport (ST) Module | Calculates the transport of non-cohesive sand, often used to study shoreline evolution and the impact of engineering works on beaches. Uses multiple transport formulas. | | Waves | Spectral Waves (SW) Module | A third-generation spectral wind-wave model that simulates the growth, propagation, and decay of wind-generated waves and swells in large offshore and coastal areas. | | Waves | Boussinesq Waves (BW) Module | A more detailed model for simulating wave propagation and transformation in harbours and near coastal structures. It explicitly models wave breaking, run-up, and non-linear interactions. | | Other Tools | Particle Tracking (PT) | Simulates the trajectory of dissolved or suspended particles for risk analysis, spill response, and studying larval dispersal. | | Other Tools | Morphological Analysis (MA) | Simulates long-term shoreline evolution by integrating the results of hydrodynamic, wave, and sediment transport modules. | | Other Tools | Mooring Analysis | Models the dynamic behaviour of moored vessels under the influence of wind, waves, and currents, also calculating forces on fenders and mooring lines. |

MIKE 21, developed by the Danish Hydraulic Institute (DHI) , is a premier computer program used to simulate two-dimensional free-surface flows where stratification can be neglected. It is widely recognized by engineers and scientists worldwide for its accuracy in modeling rivers, lakes, estuaries, and coastal areas. Core Capabilities and Features

By understanding the benefits and science behind DHI Mike 21, individuals can make informed decisions about their hair restoration options and take the first step towards regaining their confidence and a full head of hair.

Modeling dissolved oxygen levels, nutrient cycles, algal blooms, and the survival rates of coliform bacteria near wastewater outfalls. 5. Particle Tracking (PT) dhi mike 21

Water levels, flow velocities, tidal variations, and wind-driven currents.

Integrates with the hydrodynamic module to simulate water quality reaction processes, such as nutrient cycles or pollutant dispersion. Key Technical Features

: Utilizes an unstructured mesh (typically triangles or quadrilaterals), allowing for higher resolution in critical areas like coastlines or around structures while maintaining coarser resolution in the deep ocean. | | Specific Module | Primary Function &

: Prepare bathymetry files in XYZ format (Longitude, Latitude, Depth) and ensure the correct order of coordinates to avoid spatial errors. 3. Forcing and Boundary Conditions

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A dynamically nested rectilinear system. It lets operators focus computational power on specific zones without running a highly detailed mesh across the entire domain. Key Simulation Modules and Capabilities