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Strouhal Number

The Strouhal number is a dimensionless number describing oscillating flow mechanisms.

The Strouhal number equals the characteristic length times the frequency of vortex shedding divided by the characteristic speed.

Formula

QuantityVariable["Sr", "StrouhalNumber"] == (QuantityVariable["l", "Length"]*QuantityVariable["ν", "Frequency"])/QuantityVariable["v", "Speed"]

symbol description physical quantity
Sr Strouhal number "StrouhalNumber"
l characteristic length "Length"
v characteristic speed "Speed"
ν frequency "Frequency"

Forms

Examples

Get the resource:

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

Get the formula:

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

Use some values:

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

Source Metadata

  • Creator:
  • Date: 1978

Publisher Information