Comment on ``Force Balance at the Transition from Selective Withdrawal to Viscous Entrainment

TL;DR

This paper provides a commentary on the transition from selective withdrawal to viscous entrainment, discussing the force balance mechanisms involved as presented in the original work by Blanchette and Zhang.

Contribution

It offers critical insights and clarifications on the force balance analysis at the transition point in viscous fluid entrainment.

Findings

Highlights the importance of force balance in transition dynamics

Clarifies the conditions leading to viscous entrainment

Discusses implications for fluid interface stability

Abstract

Comment on paper by Blanchette and Zhang, Phys. Rev. Lett. 102, 144501 (2009).