Numerical analysis of heat transfer and fluid flow through the twisted square duct (TSD): Nanofluid as working fluid
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Mechanical Science and Technology"
DOI: 10.1007/s12206-019-1043-1
Abstract: Friction factor and heat transfer characteristics of Al2O3/water nano-particle inside the twisted square duct (TSD) using water as base fluid numerically investigated. A uniform heat flux applied on the external walls. Three-dimensional (3D) analysis of… read more here.
Keywords: fluid; twisted square; heat transfer; square duct ... See more keywords
On the role of secondary motions in turbulent square duct flow
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2018.391
Abstract: We use a direct numerical simulations (DNS) database for turbulent flow in a square duct up to bulk Reynolds number $Re_{b}=40\,000$ to quantitatively analyse the role of secondary motions on the mean flow structure. For… read more here.
Keywords: secondary motions; role; role secondary; square duct ... See more keywords
Post-transitional periodic flow in a straight square duct
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2018.811
Abstract: Direct numerical simulation of incompressible turbulence in a straight square duct finds the post-transition flow evolving substantially, and for Reynolds numbers based on the friction velocity and duct hydraulic radius greater than 600 a two-structure… read more here.
Keywords: duct; streamwise vorticity; post transitional; straight square ... See more keywords
Streamwise-localised, symmetric invariant solutions in square-duct flow
Sign Up to like & getrecommendations! Published in 2025 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2025.10452
Abstract: Abstract Flow through a square-duct at a moderate Reynolds number is investigated. We first employ an edge-tracking procedure in the $\pi$ -rotationally symmetric sub-space of state space and identify a streamwise-localised invariant solution for square-duct… read more here.
Keywords: solution; duct flow; square duct; duct ... See more keywords
Chaotic and time-periodic edge states in square duct flow
Sign Up to like & getrecommendations! Published in 2025 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2025.10706
Abstract: Abstract We analyse the long-time dynamics of trajectories within the stability boundary between laminar and turbulent square duct flow. If not constrained to a symmetric subspace, the edge trajectories exhibit a chaotic dynamics characterised by… read more here.
Keywords: time; edge; edge states; duct flow ... See more keywords
Numerical simulation of flow reversal at high Rayleigh number in a vertical square duct - an application of the spectral method
Sign Up to like & getrecommendations! Published in 2017 at "Thermal Science"
DOI: 10.2298/tsci160102150a
Abstract: In this paper we numerically study the mixed convection in hydrodynamically as well as thermally developed incompressible laminar flow of nanofluids in a vertical square duct subject to the thermal boundary condition of constant heat… read more here.
Keywords: spectral method; number; square duct; vertical square ... See more keywords
A CFD-DEM Simulation of Droplets in an Airless Spray Coating Process of a Square Duct
Sign Up to like & getrecommendations! Published in 2024 at "Coatings"
DOI: 10.3390/coatings14030282
Abstract: The purpose of this paper is to provide a numerical simulation, taking into account the collisional interactions of droplets in an airless rotary spray coating process. The hydrodynamics of gas and droplets are simulated using… read more here.
Keywords: droplet; spray coating; square duct; coating process ... See more keywords
Turbulent Heat Transfer and Pressure Loss in a Square-Duct Heat Exchanger with Inclined-Baffle Inserts
Sign Up to like & getrecommendations! Published in 2017 at "Engineering Journal"
DOI: 10.4186/ej.2017.21.7.485
Abstract: Thermal and friction loss characteristics in a square-duct heat exchanger fitted with inclinedbaffles are experimentally examined. Air as the test fluid enters the test duct having a uniform surface heatflux. The baffles are placed repeatedly… read more here.
Keywords: transfer pressure; heat transfer; heat; square duct ... See more keywords