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Industrial & Engineering Chemistry Research, 2018 The influence of cone angle on solids circulation was investigated using a computational fluid dynamics (CFD) Euler–Euler multiphase model. The solids mass flow rate in the spout and the average particle cycle time were used to evaluate the solids ...
JOSÉ T Freire, Rodrigo Bettega
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A circulation model for teaching fluid dynamics in laboratory courses in physiology
Medical Education, 1987Summary. Medical students in Germany do not usually have a strong enough basis in physics to understand the mechanical and fluid dynamic problems involved in the physiology of the circulation. To alleviate this situation we developed a circulation model for use in laboratory courses in physiology.
T M, Fischer, H, Schmid-Schönbein
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Blood circulation and fluid dynamics in the eye
Physiological Reviews, 1975The nutrition of the intraocular tissues is accomplished by the retinal vessels, the uveal vessels, and by the aqueous humor. Both morphologically and physiologically the retinal vessels are similar to those in the brain. The endothelial cells of the capillaries are attached to each other by tight junctions, the resistance vessels respond poorly to a ...
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Dynamics of Cerebrospinal Fluid Circulation Evaluated by Metrizamide CT Cisternography
Journal of Computer Assisted Tomography, 1979Cerebrospinal fluid (CSF) circulation has been analyzed by metrizamide computed tomography (CT) cisternography in 46 patients. Included were 7 patients without any clinical evidence of impaired CSF circulation, and 39 with hydrocephalus due to various causes.
N, Tamaki +4 more
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Fluid dynamics of circulating fluidized beds
1997A circulating fluidized bed (CFB) is a special case of vertical gas/solid flows. The characteristic feature of these flows is that the gas flows in the opposite direction to gravity. Depending on the choice of particles, the gaseous medium and the adjusted superficial gas velocity, different types of gas/solid flow are obtained (Fig. 13.1). Because the
O. Molerus, K.-E. Wirth
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Fluid Dynamics of a Partially Collapsible Stenosis in a Flow Model of the Coronary Circulation
Journal of Biomechanical Engineering, 1996The influence of passive vasomotion on the pressure drop-flow (ΔP-Q) characteristics of a partially compliant stenosis was studied in an in vitro model of the coronary circulation. Twelve stenosis models of different severities (50 to 90 percent area reduction) and degrees of flexible wall (0 to 1/2 of the wall circumference) were inserted into thin ...
Siebes, M. +2 more
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Dynamics of fluid circulation in coupled free and heterogeneous porous domains
Chemical Engineering Science, 2007Abstract Fluid flow in coupled free and porous domain, particularly when the porous medium is heterogeneous, is encountered in many hydro-environmental conditions, e.g., leakage from underground pipe, combined groundwater lake–subsurface interactions.
Diganta Bhusan Das, Mark Lewis
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Biotechnology Progress, 2003
AbstractNonideal mixing in many fermentation processes can lead to concentration gradients in nutrients, oxygen, and pH, among others. These gradients are likely to influence cellular behavior, growth, or yield of the fermentation process. Frequency of exposure to these gradients can be defined by the circulation time distribution (CTD).
Kyle M, Davidson +3 more
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AbstractNonideal mixing in many fermentation processes can lead to concentration gradients in nutrients, oxygen, and pH, among others. These gradients are likely to influence cellular behavior, growth, or yield of the fermentation process. Frequency of exposure to these gradients can be defined by the circulation time distribution (CTD).
Kyle M, Davidson +3 more
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A Fluid Dynamics Study of a Circulating Fluidized Bed With Secondary Air Injection
Heat Transfer: Volume 3 — Experimental Studies in Multiphase Flow; Multiphase Flow in Porous Media; Experimental Multiphase Flows and Numerical Simulation of Two-Phase Flows; Fundamental Aspects of Experimental Methods, 1996Abstract This paper presents an experimental study on the fluid dynamics of a circulating fluidized bed with secondary air injection. The experiments were run in a 4 m high, 100 mm internal diameter riser system. The solid material was 200–920 μm diameter sand.
Araí A. B. Pécora, Leonardo Goldstein
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LII An Experimental Study of the Dynamic Circulation of the Labyrinthine Fluids
Annals of Otology, Rhinology & Laryngology, 1959G, JAKO +3 more
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