Related Experiment Video
Updated: Oct 18, 2026

An Analog Macroscopic Technique for Studying Molecular Hydrodynamic Processes in Dense Gases and Liquids
Published on: December 4, 2017
Evolving ergodic flows in confined geometry
Akshay Seethamraju1, R Aravinda Narayanan1, V Meenakshi1
1Birla Institute of Technology and Science, Pilani - Hyderabad Campus, Department of Physics, Hyderabad 500078, India.
Abstract:
A state-based ergodic approach is introduced using a descriptor constructed from instantaneous, spatially resolved measurements to quantify the spatiotemporal evolution of system states in far-from-equilibrium systems. This method is demonstrated for the mixing process in confined water-glycerol flows driven across three milli-scale geometries, by combining experiments with lattice Boltzmann simulations that uniquely incorporate colloids as passive flow obstacles. This generalizable framework distinguishes nonequilibrium pathways by tracking information about accessed system states.
More Related Videos
Related Concept Videos
Eulerian and Lagrangian Flow Descriptions
The Eulerian method focuses on fixed points in space where fluid properties, such as velocity, pressure, and temperature, are observed as the fluid moves between these...
Gradually Varying Flow
Rapidly Varying Flow
Steady Flow of a Fluid Stream
During this process, the momentum of the fluid within the control volume remains constant over the time interval dt. By applying the...
Bernoulli's Equation for Flow Along a Streamline
Introduction to Types of Flows
Two-dimensional flow involves changes in both length and height, as seen in air...

