Latest papers in fluid mechanics

Author(s): Priyanka Banga, Surya Narayan Maharana, and Manoranjan Mishra

Viscosity-stratified flows are prone to instabilities that influence industrial transport processes such as oil recovery, pipeline lubrication, polymer deposition, and extraction. This study investigates the onset and growth of instabilities in miscible layered channel flows using an initial value problem framework. By capturing the full time-dependent evolution of the base state, the work reveals how transient dynamics affect instability onset and energy amplification, offering new insights beyond traditional quasi-steady analysis.

[Phys. Rev. Fluids 10, 084002] Published Thu Aug 14, 2025