Pilot‐scale open‐channel raceways and flat‐panel photobioreactors maintain well‐mixed conditions under a wide range of mixing energy inputs
Sign Up to like & getrecommendations! Published in 2020 at "Biotechnology and Bioengineering"
DOI: 10.1002/bit.27268
Abstract: Turbulent mixing in pilot‐scale cultivation systems influences the productivity of photoautotrophic cultures. We studied turbulent mixing by applying particle image velocimetry and acoustic doppler velocimetry to pilot‐scale, flat‐panel photobioreactor, and open‐channel raceway. Mixing energy inputs… read more here.
Keywords: flat panel; mixing energy; pilot scale; energy inputs ... See more keywords
SPH modelling of depth‐limited turbulent open channel flows over rough boundaries
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DOI: 10.1002/fld.4248
Abstract: Summary A numerical model based on the smoothed particle hydrodynamics method is developed to simulate depth‐limited turbulent open channel flows over hydraulically rough beds. The 2D Lagrangian form of the Navier–Stokes equations is solved, in… read more here.
Keywords: channel flows; limited turbulent; open channel; model ... See more keywords
Influence of the secondary motions on pollutant mixing in a meandering open channel flow
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DOI: 10.1007/s10652-017-9513-4
Abstract: This paper presents large eddy simulation of turbulent flow in a meandering open channel with smooth wall and rectangular cross-section. The Reynolds number based on the channel height is 40,000 and the aspect ratio of… read more here.
Keywords: meandering open; cross section; open channel; secondary motions ... See more keywords
Turbulent rectangular compound open channel flow study using multi-zonal approach
Sign Up to like & getrecommendations! Published in 2018 at "Environmental Fluid Mechanics"
DOI: 10.1007/s10652-018-09655-9
Abstract: In this paper, an improved Shiono–Knight model (SKM) has been proposed to calculate the rectangular compound open channel flows by considering a multi-zonal (MZ) approach in modelling turbulence and secondary flows across lateral flow direction.… read more here.
Keywords: compound open; channel; open channel; rectangular compound ... See more keywords
Conservation equations for open-channel flow: effects of bed roughness and secondary currents
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DOI: 10.1007/s10652-024-09992-y
Abstract: Time-averaged velocity fields in uniform open-channel flows over rough beds may exhibit spatial heterogeneities due to the effects of bed roughness and secondary currents (SCs). The latter typically originate from the turbulence anisotropy and spatial… read more here.
Keywords: open channel; roughness secondary; bed roughness; conservation ... See more keywords
Shallow turbulent mixing layers in open-channel flows
Sign Up to like & getrecommendations! Published in 2025 at "Environmental Fluid Mechanics"
DOI: 10.1007/s10652-025-10013-9
Abstract: A mixing layer (ML) forms when two streams of different speeds or densities merge. MLs are ubiquitous in nature and can be often observed in the atmosphere, ocean, rivers, canals, lakes and reservoirs. This review… read more here.
Keywords: open channel; smls; channel flows; shallow turbulent ... See more keywords
Stability of laminar flows in an inclined open channel
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DOI: 10.1007/s11587-020-00487-8
Abstract: We study the stability of laminar flows in a sheet of fluid (open channel) down an incline with constant slope angle $$\beta $$ β . The basic motion is the velocity field $$U(z) \mathbf{i}$$ U… read more here.
Keywords: laminar flows; flows inclined; open channel; stability laminar ... See more keywords
Numerical Modelling and Analysis of Turbulent Flow in an Open Channel with Submerged Vegetation
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DOI: 10.1007/s40710-017-0235-x
Abstract: Turbulent flow in an open channel whose bed is covered with vegetation is studied. Vegetation has been modeled by a series of small diameter rigid cylinders protruded vertically from the channel bed. 3-D computations were… read more here.
Keywords: flow open; vegetation; open channel; turbulent flow ... See more keywords
Lattice Boltzmann Method for Simulating Flows in Open-channel with Partial Emergent Rigid Vegetation Cover
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DOI: 10.1007/s42241-018-0157-8
Abstract: Flows in open-channel with partial emergent rigid vegetation cover are simulated using the Lattice Boltzmann method based on two dimensional nonlinear shallow water equations. The effect of vegetation is represented with the vegetation roughness coefficient,… read more here.
Keywords: flows open; channel partial; vegetation; open channel ... See more keywords
Detached-eddy simulation of turbulent coherent structures around groynes in a trapezoidal open channel
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DOI: 10.1007/s42241-019-0077-2
Abstract: The hydrodynamics in a straight open channel with a multiple-embayment groyne field was investigated using the detached-eddy simulation (DES). A series of short groynes were included on a 1:3 side slope of the channel. This… read more here.
Keywords: detached eddy; around groynes; eddy simulation; open channel ... See more keywords
A dynamic thermal algal growth model for pilot-scale open-channel raceways
Sign Up to like & getrecommendations! Published in 2020 at "Bioresource Technology Reports"
DOI: 10.1016/j.biteb.2020.100405
Abstract: Abstract This study describes the makeup of and results from a simulation consisting of a lumped thermal model integrated with a dynamic algae growth model to simulate the microalgae productivity of an open-channel raceway cultivation… read more here.
Keywords: open channel; model; heat transfer; growth model ... See more keywords