LaharFlow
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Domain settings
Parameters
Data export
Plot settings
Load/save parameters
Latitude:
Latitude of the centre of the domain, in decimal form (e.g. -12.0352).
-90 – 90
Longitude:
Longitude of the centre of the domain, in decimal form (e.g. -12.0352).
-360 – 360
Domain size in x:
length of the domain in the x direction (Easting), in metres (e.g. 10000).
0 – 40000
Domain size in y:
length of the domain in the y direction (Northing), in metres (e.g. 20000).
0 – 40000
x resolution:
cell size in the x direction (Easting), in metres (e.g. 30).
1 – 90
y resolution:
cell size in the y direction (Northing), in metres (e.g. 30).
1 – 90
Simulation time:
time span to simulate, in seconds (e.g. 3600)
0 – 10800
Add cap source
Add flux source
Review sources
View domain
Chezy drag
Chezy drag, with bed friction proportional to the square of the flow speed.
Coulomb drag
Coulomb drag, with bed friction proportional to the flow depth.
Voellmy drag
Voellmy drag, with bed friction the sum of Chezy and Coulomb components.
Chezy coef.:
Chezy drag coefficient.
> 0
Coulomb coef.:
Coulomb friction coefficient.
> 0
Erosion rate:
coefficient in the erosion parameterization that quantifies the rate at which volume is added from the bed.
≥ 0
Erosion speed threshold:
threshold in the erosion parameterization that specifies the onset of erosion.
> 0
Run Model
Status:
×
Add Cap
Location:
Latitude-longitude
Specifiy location of the cap using latitude and longitude.
Offset from centre
Specifiy location of the cap as distances relative to the centre of the domain.
Latitude:
Latitude of the cap source, in decimal form (e.g. -12.0352).
-90 – 90
Longitude:
Longitude of the cap source, in decimal form (e.g. -12.0352).
-360 – 360
x position:
Position of the cap source along the x direction (Easting),
in metres relative to the domain centre (e.g. 1500).
Must be in domain
y position:
Position of the cap source along the y direction (Northing),
in metres relative to the domain centre (e.g. 1500).
Must be in domain
Size:
Radius:
Radius of the cap source, in metres (e.g. 10.0).
> 0
Height:
Height of the cap source, in metres (e.g. 5.0).
> 0
Volume:
Volume of the cap source, in metres
3
(e.g. 5e4).
> 0
Shape:
Top-hat
Parabolic
Shape of the cap source, either top-hat (i.e. constant cap height within the cap radius) or parabolic cap.
×
Add Flux Source
Location:
Latitude-longitude
Specifiy location of the source using latitude and longitude.
Offset from centre
Specifiy location of the source as distances relative to the centre of the domain.
Latitude:
Latitude of the flux source, in decimal form (e.g. -12.0352).
-90 – 90
Longitude:
Longitude of the flux source, in decimal form (e.g. -12.0352).
-360 – 360
x position:
Position of the flux source along the x direction (Easting),
in metres relative to the domain centre (e.g. 1500).
Must be in domain
y position:
Position of the flux source along the y direction (Northing),
in metres relative to the domain centre (e.g. 1500).
Must be in domain
Size:
Radius:
Radius of the flux source, in metres (e.g. 10.0).
> 0
Time series:
Time series for the flux source, as comma separated values with time in first row (in seconds) and flux in second row (in m
3
/s), e.g.
0, 100, 200
0, 10, 0
×
Review sources
Cap sources:
Flux sources:
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