AI Helps Show How the Brain's Fluids Flow

Further analysis of how the brain works.

AI Helps Show How the Brain's Fluids Flow

By University of Rochester News Center

June 20, 2023

A team of scientists led by the University of Rochester's Douglas Kelley created new artificial intelligence-based velocimetry measurements to quantify the flow of fluids around cerebral blood vessels in the brain.

The researchers produced high-resolution visualizations of fluid flow in perivascular spaces by combining data from two-dimensional studies with physics-informed neural networks.

Explained Kelley, "This is a way to reveal pressures, forces, and the three-dimensional flow rate with much more accuracy than we can otherwise do. The pressure is important because nobody knows for sure quite what pumping mechanism drives all these flows around the brain yet. This is a new field."

The researchers think insights stemming from the AI technique could have implications for designing treatments for diseases like Alzheimer's.

From University of Rochester News Center

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Particles of Light and Fluid Flow

Not quite grokking this,  or its value, but considering it.

Particles of Light May Create Fluid Flow, Data-Theory Comparison Suggests

By Brookhaven National Laboratory

December 20, 2022

This graphic shows the energy density at different times during the hydrodynamic evolution of the matter created in a collision of a lead nucleus (moving to the left) with a photon emitted from the other lead nucleus (moving to the right).

The “elliptic flow” pattern was one of the earliest hints that particle collisions at the Relativistic Heavy Ion Collider could create a quark-gluon plasma.

A computational analysis by scientists at the U.S. Department of Energy's Brookhaven National Laboratory and Wayne State University supports the idea that photons colliding with heavy ions can create a fluid of “strongly interacting” particles.

The researchers found calculations defining such a scheme correlate with data collected by the ATLAS detector at Europe's Large Hadron Collider (LHC).

The calculations are based on the hydrodynamic particle flow observed in head-on collisions of various types of ions at the LHC and the Brookhaven Lab's Relativistic Heavy Ion Collider.

Said Brookhaven Lab's Bjoern Schenke, "For these low energy photon-lead collisions, it is important to run a full 3D hydrodynamic model (which is more computationally demanding) because the particle distribution changes more rapidly as you go out in the longitudinal direction."

From Brookhaven National Laboratory  View Full Article