Progress in numerical simulation of yield stress fluid flows
Sign Up to like & getrecommendations! Published in 2017 at "Rheologica Acta"
DOI: 10.1007/s00397-016-0985-9
Abstract: Numerical simulations of viscoplastic fluid flows have provided a better understanding of fundamental properties of yield stress fluids in many applications relevant to natural and engineering sciences. In the first part of this paper, we… read more here.
Keywords: progress numerical; numerical simulation; simulation yield; yield stress ... See more keywords
Axisymmetric lattice Boltzmann model for simulation of ternary fluid flows
Sign Up to like & getrecommendations! Published in 2020 at "Acta Mechanica"
DOI: 10.1007/s00707-020-02663-1
Abstract: In this paper, a lattice Boltzmann model based on the phase-field Cahn–Hilliard-based approach is proposed to deal with ternary fluid flows in the axisymmetric coordinate system. The present model can handle both high density and… read more here.
Keywords: ternary fluid; lattice boltzmann; model; boltzmann model ... See more keywords
The Riemann Problem with Phase Transitions for Fluid Flows in a Nozzle
Sign Up to like & getrecommendations! Published in 2021 at "Bulletin of the Malaysian Mathematical Sciences Society"
DOI: 10.1007/s40840-020-01059-7
Abstract: Phase transitions in a model of van der Waals fluid flows in a nozzle with discontinuous cross-sectional area are investigated. The model admits a physically unstable elliptic region which causes phase transitions, and a jump… read more here.
Keywords: fluid flows; flows nozzle; phase transitions; riemann problem ... See more keywords
Online Model Adaption of Reduced Order Models for Fluid Flows * *The authors gratefully acknowledge funding from the German Research Foundation (DFG) for the Research Unit ‘Active Drag Reduction’ (AB65/12-1)
Sign Up to like & getrecommendations! Published in 2017 at "IFAC-PapersOnLine"
DOI: 10.1016/j.ifacol.2017.08.1006
Abstract: Abstract In this study an online adaption of reduced order models (ROM) for fluid flows is presented. Often ROMs are stabilized and tuned by use of an eddy viscosity which is identified in the offline… read more here.
Keywords: reduced order; viscosity; research; eddy viscosity ... See more keywords
Multiplane temperature measurement of fluid flows using a color focusing schlieren system
Sign Up to like & getrecommendations! Published in 2021 at "Optics and Laser Technology"
DOI: 10.1016/j.optlastec.2021.107256
Abstract: Abstract The main contribution of this work is the multiplane measurement of temperature fields of fluid flows. We use a focusing schlieren system to fulfill such an objective. The optical system contains a color digital… read more here.
Keywords: schlieren; schlieren system; temperature; fluid flows ... See more keywords
Network-based analysis of fluid flows: Progress and outlook
Sign Up to like & getrecommendations! Published in 2022 at "Progress in Aerospace Sciences"
DOI: 10.1016/j.paerosci.2022.100823
Abstract: The network of interactions among fluid elements and coherent structures gives rise to the incredibly rich dynamics of vortical flows. These interactions can be described with the use of mathematical tools from the emerging field… read more here.
Keywords: progress; network based; based analysis; fluid flows ... See more keywords
Stability of fluid flows coupled by a deformable solid layer
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2020.774
Abstract: Abstract Fluid flows coupled by a deformable solid layer (DS) may be found in both natural and industrial settings. To analyse the stability of such systems, we consider plane Couette flows coupled by a DS.… read more here.
Keywords: coupled deformable; deformable solid; fluid; flows coupled ... See more keywords
Achieving Independent Control over Surface and Bulk Fluid Flows in Microchambers.
Sign Up to like & getrecommendations! Published in 2021 at "ACS applied materials & interfaces"
DOI: 10.1021/acsami.0c21291
Abstract: To fully realize the potential of microfluidic platforms as useful diagnostic tools, the devices must be sufficiently portable that they function at the point-of-care, as well as remote and resource-poor locations. Using both modeling and… read more here.
Keywords: fluid; control; surface; fluid flows ... See more keywords
Fluid flows on many scales
Sign Up to like & getrecommendations! Published in 2021 at "Nature Physics"
DOI: 10.1038/s41567-021-01258-4
Abstract: A single equation can describe how fluids flow across a wide range of length scales, from ocean currents to swimming algae. The difference merely lies in the Reynolds number, says Julia Yeomans. read more here.
Keywords: many scales; flows many; fluid flows;
Microfluidic pumping by micromolar salt concentrations.
Sign Up to like & getrecommendations! Published in 2017 at "Soft matter"
DOI: 10.1039/c6sm02240e
Abstract: An ion-exchange-resin-based microfluidic pump is introduced that utilizes trace amounts of ions to generate fluid flows. We show experimentally that our pump operates in almost deionized water for periods exceeding 24 h and induces fluid… read more here.
Keywords: salt concentrations; pumping micromolar; microfluidic pumping; micromolar salt ... See more keywords
Linear vs nonlinear transport during chaotic advection in fluid flows.
Sign Up to like & getrecommendations! Published in 2022 at "Chaos"
DOI: 10.1063/5.0087258
Abstract: The goal of this study is explicit demarcation of the region of validity of a linear canonical representation for chaotic advection of Lagrangian fluid parcels in "chaotic seas" in two-dimensional (2D) and three-dimensional (3D) time-periodic… read more here.
Keywords: chaotic advection; region; transport; fluid ... See more keywords