##  [Sherwood Number](/sherwood-number) 

  ##  [Sherwood Number](https://engineering.quantumdictionary.io/sherwood-number-0) 

  

 [![Engineering & Applied Technologies Dictionary](/sites/default/files/styles/large/public/2026-01/Engineering%20%26%20Applied%20Technologies.png.webp?itok=_IKO7_-n)](/topic-specific-dictionaries/engineering-applied-technologies)



**Engineering & Applied Technologies Dictionary**

 







 

 

 

 



 

 

 

 

Definition

The Sherwood number Sh, a dimensionless group defined as Sh = kL·L/D (or an analogous form), where kL is a convective mass‑transfer coefficient, L a characteristic length, and D the molecular diffusivity; Sh quantifies the relative importance of convective mass transfer to molecular diffusion in the boundary layer.