Micro-swimmers in vertical turbulent channel flows

Zhang, Zhaoyang; Qiu, J.-F.; Zhao, Lihao

doi:10.1016/j.ijmultiphaseflow.2022.104035

Cited by 2 publications

(1 citation statement)

References 28 publications

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“…Many previous studies (Durham et al., 2013; Zhan et al., 2014) have experimentally or numerically studied active transport in isotropic turbulent flows. Here, we primitively discuss the turbulent effect on microorganisms' dispersion by combining the direct numerical simulation (DNS) for the turbulent flow field and the random walk simulation for tracking the motions of the microorganisms, as that have been adopted previously for the dispersion of gyrotactic microorganisms (Marchioli et al., 2019) in vertical downwelling turbulent flows (Croze et al., 2013; Zhang et al., 2022). The advantage of directly resolving the turbulence by DNS is that we do not need to additionally adopt a turbulent diffusion model for the scattering of the transported microorganisms, the validation and calibration of which require a lot of experimental data that we currently do not have.…”

Section: Effect Of Turbulence On Microorganisms' Dispersionmentioning

confidence: 99%

Environmental Transport of Gyrotactic Microorganisms in an Open‐Channel Flow

Zheng

Jiang

et al. 2023

Water Resources Research

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Microorganisms play an essential role in the material and energy cycles of aquatic ecosystems. Their transport as active particles is key to a variety of ecological processes (X. Chen et al., 2017), such as harmful algal blooms (Durham & Stocker, 2012), bioreactors for algae biofuels (Bees & Croze, 2014;Chisti, 2007) and biofilm formation on the surface of porous media in constructed wetlands for wastewater treatment (Zeng et al., 2019).

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