Large eddy simulation of inertial fiber deposition mechanisms in a vertical downward turbulent channel flow
Sign Up to like & getrecommendations! Published in 2017 at "Aiche Journal"
DOI: 10.1002/aic.15664
Abstract: The deposition pattern of elongated inertial fibers in a vertical downward turbulent channel flow is predicted using large eddy simulation and Lagrangian particle tracking. Three dominant fibers deposition mechanisms are observed, namely, diffusional deposition for… read more here.
Keywords: vertical downward; turbulent channel; deposition; fiber ... See more keywords
Stability condition of self-organizing staggered particle trains in channel flow
Sign Up to like & getrecommendations! Published in 2020 at "Microfluidics and Nanofluidics"
DOI: 10.1007/s10404-020-2329-4
Abstract: The inertial focusing of particles in channel flow of a Newtonian fluid is studied using the lattice Boltzmann method. The effects of Reynolds number (Re) and blockage ratio ( k ) on the stability condition… read more here.
Keywords: staggered particle; condition self; particle trains; channel flow ... See more keywords
Turbulent channel flow perturbed by triangular ripples
Sign Up to like & getrecommendations! Published in 2018 at "Journal of The Brazilian Society of Mechanical Sciences and Engineering"
DOI: 10.1007/s40430-018-1050-7
Abstract: This paper presents an experimental investigation of the perturbation of a turbulent closed-conduit flow by two-dimensional triangular ripples. Two ripple configurations were employed: one single asymmetric triangular ripple, and two consecutive asymmetric triangular ripples, all… read more here.
Keywords: ripple; turbulent channel; triangular ripples; channel flow ... See more keywords
Direct numerical simulation of the viscoelastic channel flow using Giesekus model with variable parameters
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Hydrodynamics"
DOI: 10.1007/s42241-018-0144-0
Abstract: The paper presents a direct numerical simulation (DNS) for the drag-reducing channel flow using the Giesekus model with variable parameters. It is assumed that the relaxation time in the constitutive equation is varied depending on… read more here.
Keywords: giesekus model; numerical simulation; variable parameters; channel flow ... See more keywords
Application of deep learning method to Reynolds stress models of channel flow based on reduced-order modeling of DNS data
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Hydrodynamics"
DOI: 10.1007/s42241-018-0156-9
Abstract: Recently, the methodology of deep learning is used to improve the calculation accuracy of the Reynolds-averaged Navier-Stokes (RANS) model. In this paper, a neural network is designed to predict the Reynolds stress of a channel… read more here.
Keywords: dns; deep learning; channel flow; reynolds stress ... See more keywords
Predictions of bulk velocity for open channel flow through submerged vegetation
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Hydrodynamics"
DOI: 10.1007/s42241-020-0040-2
Abstract: Vegetation is of great significance in river ecosystems in terms of hydrodynamics, water environment and ecology. The question of how to predict the bulk velocity in channel flow through submerged vegetation is currently a hot… read more here.
Keywords: vegetation; channel flow; flow submerged; bulk velocity ... See more keywords
Lattice Boltzmann simulations of turbulent channel flow and heat transport by incorporating the Vreman model
Sign Up to like & getrecommendations! Published in 2018 at "Applied Thermal Engineering"
DOI: 10.1016/j.applthermaleng.2017.10.059
Abstract: Abstract In this article, the Vreman model with a dynamic procedure is applied for subgrid scale modeling of turbulent channel flow and heat transport, under the Lattice Boltzmann framework. Numerical simulations of channel flow at… read more here.
Keywords: heat transport; lattice boltzmann; model; channel flow ... See more keywords
Laser ignition in supersonic channel flow
Sign Up to like & getrecommendations! Published in 2020 at "Combustion and Flame"
DOI: 10.1016/j.combustflame.2019.12.029
Abstract: Abstract Laser ignition of premixed flames is studied in supersonic channel flow. Breakdown of natural gas air kernels occurs via a focused frequency-doubled (532 nm) Nd:YAG laser. A calibrated double photodiode energy measurement system is… read more here.
Keywords: supersonic channel; laser ignition; channel flow; ignition ... See more keywords
Turbulent channel flow over riblets with superhydrophobic coating
Sign Up to like & getrecommendations! Published in 2018 at "Experimental Thermal and Fluid Science"
DOI: 10.1016/j.expthermflusci.2018.02.001
Abstract: Abstract The performance of riblet surfaces after applying a superhydrophobic coating (SHC) is evaluated by planar particle image velocimetry (PIV) measurement at riblet tip spacing of s+ = 8.6, 17.3, and 34.6 (normalized using wall unit). The… read more here.
Keywords: turbulent channel; channel flow; superhydrophobic coating; riblet ... See more keywords
Hydrodynamic coefficients of yawed cylinders in open-channel flow
Sign Up to like & getrecommendations! Published in 2019 at "Flow Measurement and Instrumentation"
DOI: 10.1016/j.flowmeasinst.2019.01.006
Abstract: Abstract The hydrodynamic response of a cylinder in an open-channel flow is experimentally investigated by considering the effects of horizontal orientation and submergence, the latter ranging from fully submerged to half-submerged cases. Drag and side… read more here.
Keywords: channel flow; coefficients yawed; submergence; open channel ... See more keywords
Investigating channel flow using wall shear stress signals at transitional Reynolds numbers
Sign Up to like & getrecommendations! Published in 2020 at "International Journal of Heat and Fluid Flow"
DOI: 10.1016/j.ijheatfluidflow.2019.108525
Abstract: Abstract Time-resolved wall shear stress measurements are conducted to investigate channel flow at transitional Reynolds numbers. Constant temperature anemometry (CTA) is employed to measure the instantaneous wall shear stress using glue-on hot films as the… read more here.
Keywords: channel flow; shear stress; wall shear;