MULTIDIMENSIONAL OPEN SYSTEM FOR VALVELESS PUMPING
نویسندگان
چکیده
منابع مشابه
Modeling Valveless Pumping Mechanisms
Austin J Baird: Modeling valveless pumping mechanisms (Under the direction of Laura Miller) Several mechanisms of valveless pumping are studied numerically. The discussion begins with an introduction into the two well-known driving mechanisms of flow in valveless tubes: impedance pumping and peristalsis. Flow generated from peristalsis and impedance pumping is examined using the immersed bounda...
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Valveless pumping refers to nonzero mean flow of fluid within a closed loop of viscoelastic tubing, when a compliant section of the loop is rhythmically compressed at particular frequencies. Valveless pumping is thought to play a role in blood circulation in embryos and in cardiopulmonary resuscitation (CPR). Heretofore, the physical mechanism causing valveless pumping has remained a mystery. W...
متن کاملComputational Models of Valveless Pumping Using the Immersed Boundary Method
Mathematical models of valveless pumping can be represented by either a closed loop system or an open tube system. In this paper, we present a three-dimensional model of valveless pumping in a closed loop system. We also present a two-dimensional model using an open elastic cylinder contained in a rigid tank. In both models, we take the periodic compress-and-release action at the asymmetric loc...
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The development of a novel, fully integrated, miniaturized pumping system for generation of pressure-driven flow in microfluidic platforms is described. The micropump, based on electroosmotic pumping principles, has a multiple open-channel configuration consisting of hundreds of parallel, small-diameter microchannels. Specifically, pumps with microchannels of 1-6 microm in depth, 4-50 mm in len...
متن کاملOn the resonance of a pliant tube as a mechanism for valveless pumping
Valveless pumping can be achieved through the periodic compression of a pliant tube asymmetrically from its interfaces to different tubing or reservoirs. A mismatch of characteristic impedance between the flow channels is necessary for creating wave reflection sites. Previous experimental studies of the behaviour of such a pump were continued in order to demonstrate the wave mechanics necessary...
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ژورنال
عنوان ژورنال: Bulletin of the Korean Mathematical Society
سال: 2015
ISSN: 1015-8634
DOI: 10.4134/bkms.2015.52.6.1973