In vivo evidence of blood flow slippage: failure of the no-slip boundary condition assumption

American Journal of Physiology-Heart and Circulatory Physiology 2026

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Authors: Alena Jarolímová, J. Hron, Karel Tůma, Radomir Chabiniok, Josef Málek, Keshava Rajagopal
DOI: 10.1152/ajpheart.00016.2026
Cited by: 1
References: 46

Abstract

Using in vivo magnetic resonance imaging data from healthy adult volunteers, we provide evidence for effective macroscopic slip behavior along the endothelial surface in the descending thoracic aorta. Not a single case exhibited zero tangential velocity, which would define the classical no-slip boundary condition. We introduce a robust analysis framework that ensures consistent and reproducible results across manual, AI-based, and uniformly dilated AI-based vascular segmentations.

Fields of Study & Subjects

Coronary Interventions and Diagnostics Cardiovascular Health and Disease Prevention Cardiovascular Function and Risk Factors

Publication details

Journal / source
American Journal of Physiology-Heart and Circulatory Physiology
Publisher
American Physiological Society
Volume
331
Issue
1
Pages
H301–H317
Publication date
2 June 2026
Language
EN