What are volcanic debris flows called?
lahars
Debris flows, also known as lahars when they involve volcanic material, are mixtures of sediments and water that flow down the slopes in response to gravity.
What is Flo-2D used for?
FLO-2D is a two-dimensional flood routing model that can simulate rainfall- runoff. Initially, FLO-2D was designed to simulate uniform rainfall on a finite difference grid system of a watershed or floodplain.
What is Flo-2D model?
The FLO-2D Model was conceptualized in 1987 to predict mudflow hydraulics. It has been adapted to conduct any sort of overland and channel modeling type. This includes urban flood mapping, alluvial fans, coastal flooding, dam breach, and solar and wind power sites.
What are the two types of debris flow?
There are two types of debris flows, known as Lahar and Jökulhlaup.
What triggers debris flow?
Debris flows can be triggered by intense rainfall or snowmelt, by dam-break or glacial outburst floods, or by landsliding that may or may not be associated with intense rain or earthquakes.
How do you determine debris flow?
To be considered a debris flow, the moving material must be loose and capable of “flow,” and at least 50% of the material must be sand-size particles or larger. Some debris flows are very fast – these are the ones that attract attention.
Is Flo-2D free?
FLO-2D Basic (Free) A basic license is free but does not include training, webinars or technical support. FLO-2D is a combined hydrologic and hydraulic model so there is no need to separate rainfall/runoff and flood routing.
What causes a debris flow?
What are the three main characteristics of a debris flow?
Debris flows are channelized slurry flows consisting of sediment-water mixtures incorporating fine material (sand, silt and clay), coarse material (gravel and boulders) and a variable quantity of water.
Is Flo 2D free?
What is SRH 2D?
SRH-2D, Sedimentation and River Hydraulics – Two-Dimension, is a two-dimensional (2D) flow hydraulic and mobile-bed sediment transport model for river systems.
How do you identify a debris flow?
How useful is flo-2d for debris flow modeling?
Results of modeling of two debris flows in the Dolomites, using FLO-2D, increase experience for the requirements of model input for debris flow simulation.
What can flo-2d do for You?
2CNR-IRPI, Padova, Italy Abstract The two-dimensional flood routing model FLO-2D, with the capabilities of simulating non-Newtonian sediment flows, is becoming more widely used to route debris flows over alluvial fans of alpine torrents and to delineate hazard areas of inundation.
What is the flo-2d pro model?
The FLO-2D Pro Model is the most comprehensive and affordable 2-D flood routing tool. The FLO-2D Model was conceptualized in 1987 to predict mudflow hydraulics. It has been adapted to conduct any sort of overland and channel modeling type.
What is the k value of flo2-d?
6. 09Cv; FLO2-D). The parameter K equals 24 for smooth wide rectangular channels but increases significantly with roughness. A value of K=2285 is suitable to simulate mud-debris flows (O’Brien). Viscosity and critical shear stress of eq.