Skip to Main content Skip to Navigation
Journal articles

Mass or heat transfer inside a spherical gas bubble at low to moderate Reynolds number

Abstract : Mass (or heat) transfer inside a spherical gas bubble rising through a stationary liquid is investigated by direct numerical simulation. Simulations were carried out for bubble Reynolds number ranging from 0.1 to 100 and for Péclet numbers ranging from 1 to 2000. The study focuses on the effect of the bubble Reynolds number on both the interfacial transfer and the saturation time of the concentration inside the bubble. We show that the maximum velocity Umax at the bubble interface is the pertinent velocity to describe both internal and external transfers. The corresponding Sherwood (or Nusselt) numbers and the saturation time can be described by a sigmoid function depending on the Péclet number Pemax = Umaxdb/D (db and D being the bubble diameter and the corresponding diffusion coefficient).
Complete list of metadatas

Cited literature [36 references]  Display  Hide  Download
Contributor : Open Archive Toulouse Archive Ouverte (oatao) <>
Submitted on : Tuesday, December 17, 2013 - 11:45:34 AM
Last modification on : Monday, June 15, 2020 - 7:27:03 PM
Long-term archiving on: : Monday, March 17, 2014 - 10:41:47 PM


Files produced by the author(s)



Damien Colombet, Dominique Legendre, Arnaud Cockx, Pascal Guiraud. Mass or heat transfer inside a spherical gas bubble at low to moderate Reynolds number. International Journal of Heat and Mass Transfer, Elsevier, 2013, vol. 67, pp.1096-1105. ⟨10.1016/j.ijheatmasstransfer.2013.08.069⟩. ⟨hal-00919752⟩



Record views


Files downloads