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Suratman Number

The Suratman number is a dimensionless number used in the characterization of free-surface fluid dynamics. It represents a ratio of surface tension to the momentum transport (especially dissipation) inside a fluid.

The Suratman number equals the product of the characteristic length, surface tension and mass density divided by the dynamic viscosity squared.

Formula

QuantityVariable["Su", "SuratmanNumber"] == (QuantityVariable["l", "Length"]*QuantityVariable["γ", "SurfaceTension"]*QuantityVariable["ρ", "MassDensity"])/QuantityVariable["η", "DynamicViscosity"]^2

symbol description physical quantity
Su Suratman number "SuratmanNumber"
l characteristic length "Length"
γ surface tension "SurfaceTension"
η dynamic viscosity "DynamicViscosity"
ρ mass density "MassDensity"

Forms

Examples

Get the resource:

In[1]:=
ResourceObject["Suratman Number"]
Out[1]=

Get the formula:

In[2]:=
FormulaData[ResourceObject["Suratman Number"]]
Out[2]=

Use some values:

In[3]:=
FormulaData[ ResourceObject[ "Suratman Number"], {QuantityVariable["Su","SuratmanNumber"] -> 1, QuantityVariable["l","Length"] -> Quantity[1, "Meters"]}]
Out[3]=

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