Friction Factor for Wetted Wall Columns

[Dong Aleta]

Hi!

I encountered this problem that asked for the friction factor of a very dilute SO₂-air gas mixture in a wetted wall column. All the necessary information were given to compute for the Reynold's number. What I want to know is does having a wetted wall make it a different case (ergo use different set of formulas) compared to flowing in a typical steel pipe?

Thanks a lot!

 

[Chestermiller]

Is the gas velocity zero at the interface with the fluid in the wetted wall column (as it is in a dry cylinder)?

Chet