Comparison of Experiments and Simulation of Joule Heating in ac Electrokinetic Chips
ac electrokinetic manipulations of particles and fluids are important techniques in the development of lab-on-a-chip technologies. Most of these systems involve planar micro-electrode geometries, gene...
ac electrokinetic manipulations of particles and fluids are important techniques in the development of lab-on-a-chip technologies. Most of these systems involve planar micro-electrode geometries, gene...
Large Eddy Simulation of Turbulent Axial Flow Along an Array of Rods
Large eddy simulation (LES) is employed in this paper to model the axial flow along a circular array of rods with a focus on anisotropic large-scale turbulence. The circular array consists of four who...
Large eddy simulation (LES) is employed in this paper to model the axial flow along a circular array of rods with a focus on anisotropic large-scale turbulence. The circular array consists of four who...
Wave Propagation in Thin-Walled Aortic Analogues
J. Fluids Eng. -- February 2010 -- Volume 132, Issue 2, 021104 (6 pages)
doi:10.1115/1.4000792
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Research on wave propagation in liquid filled vessels is often motivated by the need to understand arterial blood flows. Theoretical and experimental investigation of the propagation of waves in flexible tubes has been studied by many researchers. The analytical one-dimensional frequency domain wave theory has a great advantage of providing accurate results without the additional computational cost related to the modern time domain simulation models. For assessing the validity of analytical and numerical models, well defined in vitro experiments are of great importance. The objective of this paper is to present a frequency domain analytical model based on the one-dimensional wave propagation theory and validate it against experimental data obtained for aortic analogs. The elastic and viscoelastic properties of the wall are included in the analytical model. The pressure, volumetric flow rate, and wall distention obtained from the analytical model are compared with experimental data in two straight tubes with aortic relevance. The analytical results and the experimental measurements were found to be in good agreement when the viscoelastic properties of the wall are taken into account.
©2010 American Society of Mechanical Engineers
| History: | Received 23 June 2008; revised 7 December 2009; published 4 February 2010 | |
| doi: | http://dx.doi.org/10.1115/1.4000792 | |
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