Results 31 to 40 of about 11,520 (296)

Computational Model Development for Hybrid Tilting Pad Journal Bearings Lubricated with Supercritical Carbon Dioxide

open access: yesApplied Sciences, 2022
Fluid film bearings lubricated with supercritical carbon dioxide (sCO2) eliminate the infrastructural requirement for oil lubricant supply and sealing in turbomachinery for sCO2 power systems.
Syed Muntazir Mehdi, Tae Ho Kim
doaj   +1 more source

Effects of the finite particle size in turbulent wall-bounded flows of dense suspensions

open access: yes, 2018
We use interface-resolved simulations to study finite-size effects in turbulent channel flow of neutrally-buoyant spheres. Two cases with particle sizes differing by a factor of 2, at the same solid volume fraction of 20% and bulk Reynolds number are ...
Brandt, Luca   +3 more
core   +1 more source

Air cavities at the inner cylinder of turbulent Taylor-Couette flow [PDF]

open access: yes, 2018
Air cavities, i.e. air layers developed behind cavitators, are seen as a promising drag reducing method in the maritime industry. Here we utilize the Taylor-Couette (TC) geometry, i.e. the flow between two concentric, independently rotating cylinders, to
Bakhuis, Dennis   +5 more
core   +2 more sources

A Comparative Study of Finite Journal Bearing in Laminar and Turbulent Regimes Using CFD (Computational Fluid Dynamic)

open access: yesMATEC Web of Conferences, 2016
In this paper, an investigation of hydrodynamic performance for journal bearing lubricated by thin film is performed by three-dimensional CFD (computational fluid dynamic). Two regimes, i.e. laminar and turbulent regimes are of main interest. The sliding
Susilowati   +4 more
doaj   +1 more source

Characteristics of stratified flows of Newtonian/non-Newtonian shear-thinning fluids

open access: yes, 2017
Exact solutions for laminar stratified flows of Newtonian/non-Newtonian shear-thinning fluids in horizontal and inclined channels are presented. An iterative algorithm is proposed to compute the laminar solution for the general case of a Carreau non ...
Brauner, Neima   +3 more
core   +1 more source

Sustainable bioplastics manufacturing from renewable sources

open access: yesFEBS Open Bio, EarlyView.
Bioplastics are manufactured by using polymers from different bio‐based sources. These novel materials not only offer biodegradability but also possess various functional properties that make them suitable for diverse applications. Recent developments in the preparation of bioplastics are reported, highlighting the distinct properties of each type of ...
C. Valeria L. Giosafatto   +6 more
wiley   +1 more source

Effect of groove texture on the dynamic characteristics of water-lubricated thrust bearing

open access: yesMATEC Web of Conferences, 2018
In this study, the effects of groove texture on the dynamic characteristics of water-lubricated thrust bearing are theoretically investigated. The turbulent Reynolds equation and its perturbation equations for water-film lubrication are derived and ...
Feng Huihui, Peng Liping
doaj   +1 more source

CFD-Based Flow Channel Optimization and Performance Prediction for a Conical Axial Maglev Blood Pump

open access: yesSensors, 2022
Ventricular assist devices or total artificial hearts can be used to save patients with heart failure when there are no donors available for heart transplantation.
Weibo Yang   +5 more
doaj   +1 more source

Simulation of fully resolved finite-size particles in a turbulent flow [PDF]

open access: yes, 2013
In this study we are interested on the statistics of finite sized particles. A sustained homogeneous isotropic turbulence with particles is numerically simulated in order to obtain those ...
Brandle de Motta, Jorge   +3 more
core  

Trajectory analysis for non-Brownian inertial suspensions in simple shear flow [PDF]

open access: yes, 2006
We analyse pair trajectories of equal-sized spherical particles in simple shear flow for small but finite Stokes numbers. The Stokes number, $\mbox{\textit{St}} \,{=}\, \dot{\gamma} \tau_p$, is a dimensionless measure of particle inertia; here, $\tau_p ...
Brady, John F., Subramanian, G.
core   +1 more source

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