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A circulation model for teaching fluid dynamics in laboratory courses in physiology
Medical Education, 1987Medical 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-Schöbein
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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 ...
David Z. D'Argenio +2 more
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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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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
K.-E. Wirth, O. Molerus
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Ocean circulation in a rotating tank: An outreach project in fluid dynamics
Proceedings of the 2014 Zone 1 Conference of the American Society for Engineering Education, 2014This work presents outreach curriculum designed to expose high school students to research intensive fields such ocean modeling (or traditional fluid dynamics). The curriculum is for a five day learning experience and research project that presents the different ways to study fluid dynamics: theory, observations, experiments, and computations ...
Shanon Reckinger +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 A. Lewis
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Computations of Fluid Dynamics of a 50 MWe Circulating Fluidized Bed Combustor
Industrial & Engineering Chemistry Research, 2009Gas-particle two-phase turbulent flows are numerically studied in a 50 MWe circulating fluidized bed combustor. The dense flow of particles is modeled by the frictional stress models adopted from solid mechanics theory. and the dilute flow in the so-called rapid granular flow regime is modeled from the kinetic theory of granulat flow.
Guodong, Liu +5 more
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Circulation, respiration and fluid dynamics in the gastropod mollusc, Hemifusus tuba (Gmelin)
Journal of Experimental Marine Biology and Ecology, 1986Cardiac activity, respiratory rate, and fluid movements in and out of the shell and tissues of Hemifusus tuba (Gmelin) have been investigated. Estimates of cardiac output (Q) were in the range 0.1 to 2.22 ml·min−1 (in individuals of 7.0 to 14.2 cm shell length).
Michael H. Depledge, Djh Phillips
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Macroscopic modelling of fluid dynamics in large-scale circulating fluidized beds
Progress in Energy and Combustion Science, 2006Macroscopic (semi-empirical) models for fluid dynamics of circulating fluidized bed (CFB) units are presented, with emphasize on applications for conditions relevant to industrial units such as fluidized-bed combustors. In order to make a structured analysis of the models, the CFB unit is divided into 6 fluid dynamical zones, which have been shown to ...
Filip Johnsson, David Pallarès
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Fluid Dynamics of Differential Circulation Reactors using Different Mixers and Designs
Chemical Engineering & Technology, 2001In many cases, the chemical kinetic examination of heterogeneous gas catalytic reactions is conducted by means of differential circulation reactors with internal mixing. This reactor should be gradient-free and behave like an ideally stirred vessel. A condition is ideal mixing, which is achieved via large circulation ratios.
Barbara Hesselbarth +3 more
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