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Effect of an Oscillating Grid on Hydrodynamics and Gas-liquid Mass Transfer in an Aquarium

This experimental study describes the effect of the oscillating grid on hydrodynamics and mass transfer in an aquarium. The contribution of the two driving elements CO2 and oscillating grid is identified. Depending on the operating conditions, either these two effects add up and promote the circulation and transport of the liquid, or these effects are opposite, the liquid velocity is then reduced. On the other hand, with regard to gas-liquid mass transfer, the use of the grid is beneficial since, under certain operating conditions; the mass transfer coefficient is increased compared to that obtained without the grid. Analysis of the various energy contributions in the unit shows that the presence of the grid is justified only in cases where the CO2 flow rate must remain low. Flow characterization was performed using Particle Image Velocimetry (PIV) technique. The results were compared with previous studies. In order to perform the concentration field measurements by planar laser induced fluorescence (PLIF) technique and simultaneous PIV and PLIF measurements, the test bench was modified. The observations of velocity and concentration fields are in adequacy with the previous studies and allow to validate the bench. The necessary tools have been put in place, the study of mass transfer can continue.

Hydrodynamics, Oscillating Grid, Mass Transfer, Velocity Fields, Concentration Fields, PIV-PLIF

APA Style

Djimako Bongo, Nekoulnang Djetounako Clarisse, Jean-Yves Champagne. (2021). Effect of an Oscillating Grid on Hydrodynamics and Gas-liquid Mass Transfer in an Aquarium. Fluid Mechanics, 7(1), 9-16. https://doi.org/10.11648/j.fm.20210701.12

ACS Style

Djimako Bongo; Nekoulnang Djetounako Clarisse; Jean-Yves Champagne. Effect of an Oscillating Grid on Hydrodynamics and Gas-liquid Mass Transfer in an Aquarium. Fluid Mech. 2021, 7(1), 9-16. doi: 10.11648/j.fm.20210701.12

AMA Style

Djimako Bongo, Nekoulnang Djetounako Clarisse, Jean-Yves Champagne. Effect of an Oscillating Grid on Hydrodynamics and Gas-liquid Mass Transfer in an Aquarium. Fluid Mech. 2021;7(1):9-16. doi: 10.11648/j.fm.20210701.12

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This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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