2D Overland Hydraulic Modelling

The 2D Overland module in MIKE+ is used for modelling 2D free-surface flows. It allows simulation of hydraulic phenomena on land surfaces, overland water bodies, as well as coastal areas, and may be applied wherever flow stratification can be neglected.

The MIKE+ 2D Overland Flow module may be applied to overland flow phenomena including:

• Surface flows
• Overland flooding in pluvial, fluvial, and coastal environments

The 2D Overland Hydrodynamic (HD) module simulates water level variations and flows in response to a variety of forcing functions. It provides the basis for water quality (AD) computations also offered under the module.

Activating the Hydrodynamic (HD) module provides access to 2D Overland model editors in the Setup tree view.

 

Figure: Activate the Hydrodynamic (HD) 2D Overland module to access editors for building 2D Overland models in the Setup tree view.

The various 2D Overland model editors include:

• 2D Domain: For defining or configuring the 2D computational grid or mesh.
• 2D Numerical Settings: For defining 2D model numerical solution settings.
• 2D Fluid Properties
• 2D Infrastructures
• 2D Initial Conditions
• 2D Surface Roughness
• 2D Eddy Viscosity
• 2D Dikes
• 2D Culverts
• 2D Weirs

These editors are described further in subsequent sections.