Graduate Diffussion-limited aggregation and the mobility of particles

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SUMMARY

Diffusion-limited aggregation (DLA) describes how high mobility of particles leads to compact aggregation through local equilibration. The professor explained that when particles collide, they lose energy, resulting in a slowdown that can cause a chain reaction, similar to a traffic jam. This phenomenon illustrates how energy dissipation during particle interactions contributes to aggregation patterns. Understanding these dynamics is crucial for comprehending the behavior of particles in various physical systems.

PREREQUISITES
  • Understanding of diffusion processes
  • Familiarity with particle interactions and energy dissipation
  • Basic knowledge of aggregation phenomena
  • Concept of local equilibration in physical systems
NEXT STEPS
  • Research the principles of diffusion-limited aggregation (DLA)
  • Study the effects of energy dissipation in particle systems
  • Explore models of local equilibration in physics
  • Investigate real-world applications of DLA in materials science
USEFUL FOR

Physicists, materials scientists, and anyone interested in the dynamics of particle aggregation and diffusion processes.

Sciencestd
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How a high mobility of particles over surface cause to aggregation, the professor in the class said that "high mobility causes to local equilibration and thus to a compact aggregation".. which I didn't understand..! What does he mean about local equilibration and how all connect to each other?!
 
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Looks like an old thread, but if you are still out there - think of cars piling up in a traffic jam, or sticks flowing down a river. As soon as two particles bump into one another, they lose energy - so then those two particles slow down, and others catch up, and traffic jam! On highways, it is a natural phenomenon, not always bad driving that causes "aggregation". Cars slow down to try and keep safe separation, and it just takes one car slowing down before everyone is piled up. It all stems from energy dissipation through interactions.
 
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I still here :) thank you so much for answering the thread :)
 

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