Macroscopic equivalence for microscopic motion in a turbulence driven three-dimensional self-assembly reactor
| Autor: | Leon Abelmann, Tijmen A.G. Hageman, M. Dirnberger, Miko Elwenspoek, Per A. Löthman, Andreas Manz |
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| Přispěvatelé: | Robotics and Mechatronics |
| Rok vydání: | 2018 |
| Předmět: |
Water flow
FOS: Physical sciences General Physics and Astronomy 02 engineering and technology Condensed Matter - Soft Condensed Matter 010402 general chemistry 01 natural sciences Displacement (vector) Scaling Brownian motion Physics Turbulence Stochastic process Fluid Dynamics (physics.flu-dyn) Observable Physics - Fluid Dynamics Mechanics Nonlinear Sciences - Chaotic Dynamics 021001 nanoscience & nanotechnology Random walk Nonlinear Sciences - Adaptation and Self-Organizing Systems 0104 chemical sciences Physics - Data Analysis Statistics and Probability Soft Condensed Matter (cond-mat.soft) Chaotic Dynamics (nlin.CD) 0210 nano-technology Adaptation and Self-Organizing Systems (nlin.AO) Data Analysis Statistics and Probability (physics.data-an) |
| Zdroj: | Journal of Applied Physics, 123(2):024901. American Institute of Physics |
| ISSN: | 1089-7550 0021-8979 |
| DOI: | 10.1063/1.5007029 |
| Popis: | We built and characterised a macroscopic self-assembly reactor that agitates magnetic, centimeter-sized particles with a turbulent water flow. By scaling up the self-assembly processes to the centimeter-scale, the characteristic time constant scale also drastically increases. This makes the system a physical simulator of microscopic self-assembly, where the interaction of inserted particles are easily observable. Trajectory analysis of single particles reveals their velocity to be a Maxwell-Boltzmann distribution and it shows that their average squared displacement over time can be modelled by a confined random walk model, demonstrating a high level of similarity to Brownian motion. The interaction of two particles has been modelled and verified experimentally by observing the distance between two particles over time. The disturbing energy (analogue to temperature) that was obtained experimentally increases with sphere size, and differs by an order of magnitude between single-sphere and two-sphere systems (approximately 80 $\mathrm{\mu J}$ versus 6.5 $\mathrm{\mu J}$, respectively). Comment: 10 pages, 11 figures |
| Databáze: | OpenAIRE |
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