Turbulent Sedimentation by Eckart Meiburg

Turbulence from Angstroms to light years DATE:20 January 2018 to 25 January 2018 VENUE:Ramanujan Lecture Hall, ICTS, Bangalore The study of turbulent fluid flow has always been of immense scientific appeal to engineers, physicists and mathematicians because it plays an important role across a plethora of known phenomena, extending from the quantum mechanical all the way to cosmological scales. The purpose of this discussion meeting is to bring together researchers who have made key contributions in various areas of turbulence to describe their latest research results and discuss open problems. The talks will be in the broad areas listed below and will cover the spectrum from homogeneous isotropic turbulence to situations where shear breaks isotropy (as in the ocean, the atmosphere, solar fluid dynamics, and in engineering flows) to turbulent convection (as in the rotating Sun) and quantum turbulence: Basic turbulence Isotropic and homogeneous turbulence Quantum turbulence Cosmological turbulence Boundary layers and lab flows Geophysical and astrophysical flows This meeting will be held around the Infosys - ICTS Subrahmanyan Chandrasekhar lectures to be delivered by Katepalli Sreenivasan. There will also be a special session to celebrate his scientific career. CONTACT US:turbulence2017@icts.res.in PROGRAM LINK:https://www.icts.res.in/discussion-me... Table of Contents (powered by https://videoken.com) 0:00:00 Start 0:00:15 Turbulent Sedimentation 0:02:10 Sedimentation from river plumes 0:05:03 Sedimentation from river plumes: Experiments 0:06:45 Sedimentation from river plumes 0:08:06 Moderately dilute flows: Two-ways coupling 0:10:22 Sedimentation from river plumes: Numerical simulations 0:13:59 Sedimentation from river plumes: Mean fields 0:19:27 Sedimentation from river plumes: Effective settling velocity 0:20:58 Sedimentation from river plumes: leaking mode (higher Sc) 0:22:50 Sedimentation from river plumes: Scaling 0:23:44 Sedimentation from river plumes: Parametric study 0:25:40 Sedimentation from river plumes: Linear profiles 0:26:16 Moderately dilute flows: two-way coupling (cont'd) 0:26:35 Sedimentation from river plumes: Linear stability analysis 0:27:04 Linear stability results 0:28:38 Mechanism of settling-driven instability 0:30:10 Settling-driven instability: DNS simulation 0:33:24 Sedimentation from river plumes: dimensional scales 0:33:51 Summary 0:35:38 Q&A