Boundary layer effects for Low-Density Lipoprotein (LDL) concentration problems in a multi-layer artery model are analyzed in this paper. Both a straight artery and aorta-iliac bifurcation are analyzed. Mass, momentum and species governing equations are written by means of the porous media theory and solved with the commercial finite-element based code COMSOL Multiphysics. For the straight artery, it is shown that the intramural pressure affects the concentration boundary layer, i. e. it increases with hypertension. Finally, an expression for the boundary layer of a straight artery that takes into account hypertension effects is also derived
Boundary Layer Considerations in a Multi-Layer Model for LDL Accumulation / Iasiello, Marcello; Andreozzi, Assunta; Bianco, Nicola; Vafai, Kambiz. - (2017), pp. 957-960. (Intervento presentato al convegno 5th International Conference on Computational & Mathematical Biomedical Engineering tenutosi a Pittsburgh (PA), USA nel 10 - 12 Aprile 2017).
Boundary Layer Considerations in a Multi-Layer Model for LDL Accumulation
Iasiello Marcello
;Andreozzi Assunta;Bianco Nicola;
2017
Abstract
Boundary layer effects for Low-Density Lipoprotein (LDL) concentration problems in a multi-layer artery model are analyzed in this paper. Both a straight artery and aorta-iliac bifurcation are analyzed. Mass, momentum and species governing equations are written by means of the porous media theory and solved with the commercial finite-element based code COMSOL Multiphysics. For the straight artery, it is shown that the intramural pressure affects the concentration boundary layer, i. e. it increases with hypertension. Finally, an expression for the boundary layer of a straight artery that takes into account hypertension effects is also derivedI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
