Results 101 to 110 of about 96,065 (304)

Multiscale simulation of interacting turbulent and rarefied gas flows in the DSMC framework

open access: yesTheoretical and Applied Mechanics Letters
A multiscale stochastic-deterministic coupling method is proposed to investigate the complex interactions between turbulent and rarefied gas flows within a unified framework.
Liyan Luo, Songyan Tian, Lei Wu
doaj   +1 more source

On bypass transition in separation bubbles: a review

open access: yesPropulsion and Power Research, 2019
Transition from laminar flow to turbulent flow is of great practical interest as it occurs in many engineering flows and often plays a critical role in aerodynamics and heat transfer performance of those flow devices.
Zhiyin Yang
doaj   +1 more source

Radial capacity and hemodynamics evaluation in vitro and implantable feasibility validation in vivo of thinner bioresorbable polymer vascular stents

open access: yesBMEMat, EarlyView.
A series of in vitro experiments, numerical simulations and in vivo experiments were conducted to jointly evaluate the effects of different thicknesses of bioabsorbable polymer vascular stents on their radial capacity, hemodynamics and in vivo outcomes.
Chong Chen   +9 more
wiley   +1 more source

Dynamical arrest in active nematic turbulence

open access: yesPhysical Review Research
Active fluids display spontaneous turbulentlike flows known as active turbulence. Recent work revealed that these flows have universal features, independent of the material properties and of the presence of topological defects.
Ido Lavi   +3 more
doaj   +1 more source

Effect of cell retention techniques in Komagataella phaffii lab‐scale continuous processes

open access: yesBiotechnology Progress, EarlyView.
Abstract Perfusion technologies play a growing role in the implementation of continuous processes for biotherapeutics production in mammalian‐based manufacturing. However, their application to alternative production hosts is limited. Cell retention systems are of key importance for the efficiency of perfusion bioreactors.
Marina Y. Linova   +5 more
wiley   +1 more source

Numerical Simulation of Turbulence Flows in Shear Layer

open access: yesArchives of Metallurgy and Materials, 2014
For various problems of continuum mechanics described by the equations of hyperbolic type, the comparative analysis of scenarios of development of turbulent flows in shear layers is carried out.
Fortova S.V.
doaj   +1 more source

Automated Process Optimization in a Novel Triple Shaft Mixer with Adaptive Mixing Modes

open access: yesChemie Ingenieur Technik, EarlyView.
A novel multi‐purpose mixer with adjustable blade angle and a coaxial stirrer is developed, providing three degrees of freedom. An optimization strategy is integrated to autonomously identify optimal operating conditions through automated tests. The current draw of the main stirrer serves as the optimization criterion, while stirrer speeds, directions,
B. Schwarz, H. Kniele, J. A. Lindner
wiley   +1 more source

Large-Eddy Simulation of Particle-Laden Turbulent Flows over a Backward-Facing Step Considering Two-Phase Two-Way Coupling

open access: yesAdvances in Mechanical Engineering, 2013
Particle-laden turbulent flows over a backward-facing step were here numerically studied by means of a large-eddy simulation considering two-way coupling between particle and fluid phases.
Wang Bing, Zhang Hui Qiang, Wang Xi Lin
doaj   +1 more source

Inflectional instabilities in the wall region of bounded turbulent shear flows [PDF]

open access: yes
The primary thrust of this research was to identify one or more mechanisms responsible for strong turbulence production events in the wall region of bounded turbulent shear flows.
Blackwelder, Ron F.   +2 more
core   +1 more source

STRUCTURE OF TURBULENT VELOCITY AND BUOYANCY FLUCTUATIONS IN STRATIFIED TURBULENT SHEAR FLOW

open access: yesDoboku Gakkai Ronbunshu, 1984
The effects of buoyancy on turbulence structure of a buoyant surface jet are investigated. Velocities and buoyancy fluctuations are simultaneously measured, and their statistic quantities are examined. Distributions of turbulence quantities are strongly affected by buoyancy. Their variations against the shear layer Richardson number can be explained in
Akira MUROTA, Keiji NAKATSUJI
openaire   +2 more sources

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