intro story Lake

Lake

Lakes and reservoirs are important resources for communities around the globe. They provide food, drinking and irrigation water and can also offer spots for recreation. Under certain conditions lakes can also represent a threat for local communities, such as flooding or limnic eruptions. The ecological state of shallow lakes may be hampered by suspended sediments due to wind driven currents and waves. In deep lakes, stratification can cause undesirable anoxic conditions in the deeper areas. Understanding these systems is crucial to enable a sound management of these water bodies.

 
Delft3D is the state-of-the-art modelling framework for hydrodynamics, water quality, ecology, waves and morphology.
 
Here, in this space, we share knowledge & experiences, and discuss issues related to modelling of lakes.

 

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D-Flow Flexible Mesh
DELWAQ
Cohesive sediments & muddy systems


 

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Critical bed shear stress for erosion - MAP x Constant Value

LP
Lucas Pion, modified 4 Years ago.

Critical bed shear stress for erosion - MAP x Constant Value

Youngling Posts: 12 Join Date: 5/7/13 Recent Posts
Hello everyone,

I'm finding some problems in establishing critical bed shear for erosion.
After some unsatisfying results, I ran the following simulations:

1.) Simulation with constant critical bed shear stress for erosion 0.25 N/m²
2.) Simulation with constant critical bed shear stress for erosion 0.25 N/m², but inputed as a map with constant value.

The problem is that these simulations had different results. How is that possible?
I have already checked all other input files and values and they are all the same.

Thank you very much!
Lucas