What is the black part that appears out of place?
Yes, the reason is that I used an intruder *gambling die* to measure granular surface tension.
Our recent study significantly enhances the field of granular mechanics by introducing a groundbreaking granular-media calorimeter, which plays a crucial role in understanding the thermodynamics of granular streams under horizontal vibrations. We made a remarkable discovery: at low peak accelerations relative to gravity (Γ), a submerged intruder resting on the free surface of a rotating granular sample defies Archimedes' principle. Instead, we uncovered an important resistance force called pseudo-surface tension, which not only deepens our theoretical understanding but also has practical implications for various industries that deal with granular materials. The issue of energy dissipation during low-velocity collisions between small grains has been a persistent challenge for researchers in the field of granular flow. To address this, we utilized cutting-edge molecular dynamics simulations to examine the relationship between the coefficient of restitution and impact velocity, with the goal of accurately modeling energy dissipation. Our findings reveal that aligning simulation results with empirical data from our calorimeter substantiates Love's assertion that small grains exhibit slightly inelastic behavior during very low-velocity impacts, providing an accurate estimation of pseudo-surface tension. This research enhances our understanding of granular materials and paves the way for future innovations in the field.
What do you think?
By the way, my name is Jaross. Nice to meet you.
7.88E-02 (z) 5.10E+07 (stress)
