Taylor-Aris Microchannel Dispersion Calculator

Microfluidic Transport Phenomena: Calculate effective axial dispersion ($D_{eff}$), Péclet number ($Pe$), and peak band broadening variance ($\sigma_x^2$).

Microchannel & Molecular Properties

Channel Diameter / Height $d$ ($\mu\text{m}$):

Mean Velocity $U$ (mm/s):

Molecular Diffusivity $D_m$ ($10^{-9}\text{ m}^2/\text{s}$):

Channel Geometry:

Transport Time $t$ (seconds):

Dispersion & Band Broadening Results

Effective Dispersion ($D_{eff}$)

-- $m^2/s$

Péclet Number ($Pe$)

Dispersion Enhancement

-- x

Band Width ($4\sigma$)

-- mm

Convective-Diffusive Characteristics

• Travel Distance ($L = U \cdot t$): -- mm

• Radial Diffusion Equilibrium Time ($t_{diff} = d^2 / D_m$): -- s

• Taylor Regime Validity ($t \gg t_{diff}$): --

• Standard Deviation Variance ($\sigma_x = \sqrt{2 D_{eff} t}$): -- mm

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Taylor-Aris Microchannel Dispersion Calculator

Microchannel & Molecular Properties

Dispersion & Band Broadening Results

Convective-Diffusive Characteristics

Frequently Asked Questions