Tejas Murthy

Wow !

Dynamics of a liquid film flowing down a granular chain | Journal of Fluid Mechanics | Cambridge Core Dynamics of a liquid film flowing down a granular chain - Volume 1016

My former student Kishor, colleague Gaurav and I worked on the dynamics of a liquid film flowing down a granular chain. Here are the results of the experiments and some simulations.

www.cambridge.org/core/journal...

Top graph: coordination number as a function of distance away from a bonded dimer Bottom graph: pressure as a function of distance away from a bonded dimer

Cool finding 2: The effect of the bonded dimers extends outward to their nearest neighbors, where we see that both coordination number and pressure are elevated compared to the average.

Civil engineering 🏛️ meets statistical physics ⚛️ is a great combination!

Top graph: histograms of mean contact forces, which grow longer tails as the concentration of bonded dimers increases. Bottom: No matter the fraction of bonded dimers, this histogram of the normal force shows that they are roughly equal populations of being under tension or compression (with slightly more under compression).

Cool finding 1: we can make histograms of all particles (or just the bonded ones), and study how increased rigidity arises as a function of the fraction of bonded pairs. There are stronger interparticle forces present for the dimers (50% tension, 50% compression) compared to the unbonded particles.

Micromechanics of compressive and tensile forces in partially-bonded granular materials In granular media, the presence of even small amounts of interparticle cohesion manifests as an increase in the bulk strength and stiffness, effects that are typically associated with an increase in t...

I had the pleasure of being a #Fulbright scholar in @granmech.bsky.social 's lab at IISc Bangalore last year, where grad student Abrar Naseer is doing photoelastic force measurements on bonded pairs of particles (my lab just does single ones!) Here's the first preprint: arxiv.org/abs/2507.19214

Paul Simon’s one trick pony. I feel like a one trick pony … so i find it annoying that there’s a song about it !!

Which tintin cover is hidden by the plant? Destination moon?

Most importantly the Tintin covers !!

Understanding shear bands in granular media through in-plane ploughing experiments at different strain rates - Granular Matter An experimental study is made to understand the deformation characteristics and failure mechanism of sands subjected to severe plastic deformation in the ploughing model setup of in-plane orthogonal c...

link.springer.com/article/10.1...

My first post here !! New paper on shear banding in granular materials