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ISSN オンライン: 2642-0554

Three-dimensional Lagrangian Coherent Structures in the left ventricle model

Maria Grazia Badas
Department of Ingegneria Civile, Ambientale e Architettura University of Cagliari Via Marengo 2, 09123 Cagliari - Italy

Stefania Espa
Dipartimento di Ingegneria Civile, Edile e Ambientale Sapienza Universita di Roma Via Eudossina 18, 00184 Roma - Italy

Stefania Fortini
Dipartimento di Ingegneria Civile, Edile e Ambientale Sapienza Universita di Roma Via Eudossina 18, 00184 Roma - Italy

Giorgio Querzoli
Dept. of Mechanics and Aeronautics, "La Sapienza" Univ. of Rome, Via Eudossiana 18, 00184 Rome, Italy; Department of Ingegneria Civile, Ambientale e Architettura University of Cagliari Via Marengo 2, 09123 Cagliari - Italy

要約

The left ventricle (LV) flow dynamics was reproduced in a laboratory model, and three dimensional velocity fields were reconstructed from two dimensional image analysis measurements on two sets of orthogonal planes. The flow features were investigated by means of Finite Time Lyapunov exponents (FTLE), a Lagrangian based methodology useful to assess Lagrangian Coherent Structure (LCS) time evolution and flow mixing properties.