Mass Transfer
Diffusion
GATE 2010
Medium
The ratio of the thermal boundary layer thickness to the concentration boundary layer thickness is proportional to
- ANu
- Le
- CSh
- DPr
Explanation
The relative thicknesses of thermal and concentration boundary layers are governed by the Lewis number Le=Sc/Pr=α/D; the ratio δt/δc is a function of Le.
Source: GATE CH 2010 (2010)
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