Fluidized bed as “eyes water”: a potential risk

Authors

  • Mário Talaia Departamento de Física, Universidade de Aveiro, Campus Santiago, Aveiro

DOI:

https://doi.org/10.14195/1647-7723_18_24

Keywords:

Fluidized bed, fixed bed, sand, minimum fluidizing velocity, “eyes water”, safety.

Abstract

Nature offers us a great number of physical phenomena that makes us think. Physical phenomena may offer a great number of curiosities. For example, when we visited the beach in the Algarve called Olhos de Água, it is possible to observe a wonderful physical phenomenon that occurs in the sandy beach called “eyes water”. That analogy can be used to explain this phenomenon? Could be considered a risk for children? This article shows the conditions favorable for the fixed bed to become fluidized.

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Published

2011-07-29

Issue

No. 18 (2011): Affirming the Cindinics Sciences

Section

Articles

License

Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows sharing the work with recognition of authorship and initial publication in Antropologia Portuguesa journal.