/
sinker-with-averaging.prm
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sinker-with-averaging.prm
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set Dimension = 2
set Start time = 0
set End time = 0
set Output directory = output-sinker-with-averaging
set Pressure normalization = volume
subsection Geometry model
set Model name = box
subsection Box
set X extent = 1.0000
set Y extent = 1.0000
end
end
subsection Boundary velocity model
set Zero velocity boundary indicators = left, right, bottom, top
end
subsection Material model
set Model name = simple
set Material averaging = none
subsection Simple model
set Reference density = 1
set Viscosity = 1
set Thermal expansion coefficient = 0
set Composition viscosity prefactor = 1e6
set Density differential for compositional field 1 = 10
end
end
subsection Gravity model
set Model name = vertical
subsection Vertical
set Magnitude = 1
end
end
############### Parameters describing the temperature field
# Note: The temperature plays no role in this model
subsection Initial temperature model
set Model name = function
subsection Function
set Function expression = 0
end
end
############### Parameters describing the compositional field
# Note: The compositional field is what drives the flow
# in this example
subsection Compositional fields
set Number of fields = 1
end
subsection Initial composition model
set Model name = function
subsection Function
set Variable names = x,y
set Function expression = if( (sqrt((x-0.5)^2+(y-0.5)^2)>0.22) , 0 , 1 )
end
end
############### Parameters describing the discretization
subsection Mesh refinement
set Initial global refinement = 6
set Initial adaptive refinement = 0
end
############### Parameters describing what to do with the solution
subsection Postprocess
set List of postprocessors = visualization, velocity statistics, composition statistics
subsection Visualization
set Output format = vtu
set Time between graphical output = 0
set List of output variables = density, viscosity
end
end