2 papers
physics.flu-dyn2025
Relaminarization of turbulent puffs in pipe flow
Basheer A. Khan, Shai Arogeti, Oriel Shoshani +1
This study examines the relaminarization of turbulent puffs in pipe flow using highly resolved direct numerical simulations at Reynolds numbers of 1880, 1900, and 1920. The exponen…
physics.flu-dyn2025
Saddle-node bifurcation during the relaminarization of turbulent puffs in pipe
Basheer Ahmad Khan, Shai Arogeti, Oriel Shoshani +1
Turbulent puffs in a pipe persist for a long time before abruptly transitioning to laminar flow through viscous exponential decay. Direct numerical simulation results reveal a sadd…