000014420 001__ 14420 000014420 005__ 20161115100151.0 000014420 04107 $$aeng 000014420 046__ $$k2016-08-21 000014420 100__ $$aLeontini, Justin 000014420 24500 $$aEnhanced gas transport during high-frequency ventilation 000014420 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers 000014420 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016 000014420 506__ $$arestricted 000014420 520__ $$2eng$$aThis study focuses on the potential for nonlinear mean streaming to enhance the gas transport during high-frequency ventilation, a ventilation strategy used in intensive care wards. Direct numerical simulations of the reciprocating flow in a pipe are conducted, as this basic flow serves as a model of the flow in various sections of the human airway. In particular, the impact of modifying the end conditions of the pipe, so that there is some asymmetry from one end to the other, is investigated. Preliminary results show that the streaming flow, which progresses in one direction in the middle of the pipe, and the opposite direction at the sides, is reasonably insensitive to the frequency of oscillation, but it is heavily dependent on the amplitude. 000014420 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb. 000014420 653__ $$a 000014420 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016 000014420 720__ $$aLeontini, Justin 000014420 8560_ $$ffischerc@itam.cas.cz 000014420 8564_ $$s63535$$uhttps://invenio.itam.cas.cz/record/14420/files/TS.FM01-4.04.pdf$$yOriginal version of the author's contribution as presented on CD, page 448, code TS.FM01-4.04 . 000014420 962__ $$r13812 000014420 980__ $$aPAPER