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October, 2006
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Generation of Human 3D Lung Tissue Cultures (3D-LTCs) for Disease Modeling

1Comprehensive Pneumology Center, Ludwig-Maximilians-Universität and Helmholtz Zentrum Munich, 2German Center of Lung Research (DZL), 3Translational Lung Research and CPC-M bioArchive, Helmholtz Zentrum München, Comprehensive Pneumology Center Munich DZL/CPC-M, 4Department of Experimental Medical Science, Lung Bioengineering and Regeneration, Lund University, 5Wallenberg Center for Molecular Medicine, Lund University, 6Stem Cell Centre, Lund University, 7Asklepios Fachkliniken Munich-Gauting, 8Department of Medicine, Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado

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JoVE 58437

 JoVE In-Press

Visualization of Flow Past a Bluff Body

JoVE 10435

Source: Ricardo Mejia-Alvarez, Hussam Hikmat Jabbar and Mahmoud N. Abdullatif, Department of Mechanical Engineering, Michigan State University, East Lansing, MI

Owing to the non-linear nature of its governing laws, fluid motion induces complicated flow patterns. Understanding the nature of these patterns has been the subject of intense scrutiny for centuries. Although personal computers and supercomputers are extensively used to deduce fluid flow patterns, their capabilities are still insufficient to determine the exact flow behavior for complex geometries or highly inertial flows (e.g. when momentum dominates over viscous resistance). With this in mind, a multitude of experimental techniques to make flow patterns evident have been developed that can reach flow regimes and geometries inaccessible to theoretical and computational tools. This demonstration will investigate fluid flow around a bluff body. A bluff body is an object that, due to its shape, causes separated flow over most of its surface. This is in contrast to a streamlined body, like an airfoil, which is aligned in the stream and causes less flow separation. The purpose of this study is to use hydrogen bubbles as a method of visualizing flow patterns. The hydrogen bubbles are produced via electrolysis using a DC power source by submerg

 Mechanical Engineering

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