Experimental methods for flow and aerosol measurements in human airways and their replicas

F Lizal, J Jedelsky, K Morgan, K Bauer, J Llop… - European Journal of …, 2018 - Elsevier
Recent developments in the prediction of local aerosol deposition in human lungs are driven
by the fast development of computational simulations. Although such simulations provide …

Is there still a role for high-frequency oscillatory ventilation in neonates, children and adults?

SR Hupp, DA Turner, KJ Rehder - Expert Review of Respiratory …, 2015 - Taylor & Francis
Critically ill patients with respiratory pathology often require mechanical ventilation and
while low tidal volume ventilation has become the mainstay of treatment, achieving …

Numerical study of high-frequency oscillatory air flow and convective mixing in a CT-based human airway model

J Choi, G Xia, MH Tawhai, EA Hoffman… - Annals of biomedical …, 2010 - Springer
High-frequency oscillatory ventilation (HFOV) is considered an efficient and safe respiratory
technique to ventilate neonates and patients with acute respiratory distress syndrome. HFOV …

Oscillatory pressure-driven rarefied binary gas mixture flow between parallel plates

A Tsimpoukis, S Naris, D Valougeorgis - Physical Review E, 2021 - APS
The rarefied, oscillatory, pressure-driven binary gas mixture flow between parallel plates is
computationally investigated in terms of the mixture molar fraction and molecular mass ratio …

Nonlinear oscillatory fully-developed rarefied gas flow in plane geometry

A Tsimpoukis, N Vasileiadis, G Tatsios… - Physics of …, 2019 - pubs.aip.org
The nonlinear oscillatory fully developed rarefied gas flow between parallel plates due to an
external harmonic force is investigated by the Direct Simulation Monte Carlo (DSMC) …

Flow transport and gas mixing during invasive high frequency oscillatory ventilation

M Alzahrany, A Banerjee, G Salzman - Medical engineering & physics, 2014 - Elsevier
A large Eddy simulation (LES) based computational fluid dynamics study was performed to
investigate gas transport and mixing in patient specific human lung models during high …

Three-dimensional steady and oscillatory flow in a double bifurcation airway model

S Jalal, T Van de Moortele, A Nemes, O Amili… - Physical Review …, 2018 - APS
We investigate the steady expiratory and the oscillatory flow in a planar double bifurcation
model with geometric proportions relevant to the respiratory human airways. Expanding on a …

Endotracheal tube, by the venturi effect, reduces the efficacy of increasing inlet pressure in improving pendelluft

K Takahashi, H Toyama, Y Ejima, J Yang, K Kikuchi… - Plos one, 2023 - journals.plos.org
In mechanically ventilated severe acute respiratory distress syndrome patients, spontaneous
inspiratory effort generates more negative pressure in the dorsal lung than in the ventral …

The influence of airway tree geometry and ventilation frequency on airflow distribution

K Bauer, C Brücker - Journal of biomechanical …, 2015 - asmedigitalcollection.asme.org
The human lung is known to be asymmetric and heterogeneous which leads to an
inhomogeneous distribution of air. Within the scope of this paper the influence of the upper …

Steady and oscillatory flow in the human bronchial tree

S Jalal, T Van de Moortele, O Amili, F Coletti - Physical Review Fluids, 2020 - APS
In this study, we investigate the steady inhalation, steady exhalation, and oscillatory flow in a
realistic airway geometry for physiologically relevant regimes ranging from quiet breathing to …