Wolfram Computation Meets Knowledge

Péclet Number for Mass Transfer

The Péclet number is a class of dimensionless numbers relevant in the study of transport phenomena in a continuum. It is defined to be the ratio of the rate of advection of a physical quantity by the flow to the rate of diffusion of the same quantity driven by an appropriate gradient.

The Pe'clet number for mass transfer equals the product of the characteristic length and characteristic speed divided by the diffusion coefficient.

Formula

QuantityVariable[SuperStar["Pe"], "PecletNumberMassTransfer"] == (QuantityVariable["l", "Length"]*QuantityVariable["v", "Speed"])/QuantityVariable["D", "DiffusionCoefficient"]

Forms

Examples

Get the resource:

In[1]:=
ResourceObject["Péclet Number for Mass Transfer"]
Out[1]=

Get the formula:

In[2]:=
FormulaData[ResourceObject["Péclet Number for Mass Transfer"]]
Out[2]=

Use some values:

In[3]:=
FormulaData[
 ResourceObject[
  "Péclet Number for Mass Transfer"], {QuantityVariable[
   SuperStar["Pe"],"PecletNumberMassTransfer"] -> 1, 
  QuantityVariable["l","Length"] -> Quantity[1, "Meters"]}]
Out[3]=

Publisher Information