Fluidic oscillators mediating generation of microbubbles (survey)

0541999 - ÚT 2022 RIV CH eng J - Článek v odborném periodiku
Tesař, Václav
Fluidic oscillators mediating generation of microbubbles (survey).
Fluids. Roč. 6, č. 2 (2021), č. článku 77. E-ISSN 2311-5521
Grant CEP: GA MŠMT(CZ) EF16_019/0000753
Institucionální podpora: RVO:61388998
Klíčová slova: heating * temperature control * cooling * scaled-up capsule * n-eicosane
Obor OECD: Fluids and plasma physics (including surface physics)
Způsob publikování: Open access
https://www.mdpi.com/2311-5521/6/2/77

If a gas volume is distributed into many bubbles of a sub-millimetre size, the total gas/liquid surface becomes very large. This increases overall heat and/or mass transport across the sum of surfaces. The paper discusses several applications in which the use of microbubbles increases efficiency of various processes, especially in wastewater treatment and in growing microorganisms such as algae, yeast, bacteria, or primitive fungi. The problem of microbubble generation by percolation in an aerator is their coalescence into larger bubbles. The solution of this size discrepancy question was found in agitating the gas flow by a fluidic oscillator — a no-moving-part device, simple, inexpensive, resistant to external effects.
Trvalý link: http://hdl.handle.net/11104/0319680