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Fluid transport in branched structures with temporary closures: A model for quasistatic lung inflation
 

Summary: Fluid transport in branched structures with temporary closures:
A model for quasistatic lung inflation
Arnab Majumdar,1,2
Adriano M. Alencar,1,2
Sergey V. Buldyrev,1
Zolta´n Hantos,3
H. Eugene Stanley,1
and Be´la Suki2
1
Center for Polymer Studies and Department of Physics, Boston University, Boston, Massachusetts 02215
2
Department of Biomedical Engineering, Boston University, Boston, Massachusetts 02215
3
Department of Medical Informatics and Engineering, and Institute of Surgical Research, University of Szeged, Hungary
Received 20 August 2002; published 20 March 2003
We analyze the problem of fluid transport through a model system relevant to the inflation of a mammalian
lung, an asymmetric bifurcating structure containing random blockages that can be removed by the pressure of
the fluid itself. We obtain a comprehensive description of the fluid flow in terms of the topology of the structure
and the mechanisms which open the blockages. We show that when calculating averaged flow properties of the
fluid, the tree structure can be partitioned into a linear superposition of one-dimensional chains. In particular,

  

Source: Alencar, Adriano Mesquita - Departamento de Física Geral, Universidade de São Paulo
Buldyrev, Sergey - Department of Physics, Yeshiva University
Stanley, H. Eugene - Department of Physics, Boston University

 

Collections: Computer Technologies and Information Sciences; Materials Science; Physics