Encontrados 7 documentos, a visualizar página 1 de 1
Airborne Pathogens Transport in an Aircraft Cabin
Acikgoz, MB; Akay, B; Miguel, Antonio F; Aydin, MAirborne pathogens can spread within an aircraft cabin from sneezing, coughing or breathing of a sick passenger. This paper reports a 3D numerical study on the transport of airborne pathogens inside Boeing 767 cabin. After cough or sneeze of an infected passenger, the entire unsteady pathogen dispersion process is simulated. Effects under study include the direction of coughing on the pathogens propagation and ...
Particle dynamics from aerosol flow
Akay, B.; Yükselentür, Y.; Miguel, A. F.; Aydin, M.Particles with different sizes are modeled under steady- state laminar flow conditions. For this purpose, a CFD numerical simulation is performed to resolve the fluid flow and particles trajectories.
Influence of flow with suspended particles on temperature fields and convective...
Aydin, M; Reis, A. H; Miguel, A. F.The present paper reports the results of a numerical study of forced convection heat transfer between two plates filled with particles. We study the influence of particles suspended in flows on heat transfer enhancement. We consider steady-state fluid flow between two flat horizontal parallel plates with both plates kept at the same temperature. Mono-disperse particles with low and high thermal conductivities i...
Numerical Particle Transport in Partitioned Room.
Aydin, M.; Miguel, A. F.; Reis, A,In this work, we solved particle transport in a two-zone enclosure numerically with different airflow pattems, particle properties and algo source positions. A discrete trajectory was employed for the particIe movement. Five isotropic line sources which are alI taken at different positions oftne same zone were festejo It was observed that for alI airflow pattems, residence time increases with decreasing size of...
Analysis of loop heat pipe performance under varying wick load
Reis, A; Miguel, A. F.; Aydin, MLoop heat pipes (LHP) are heat transfer devices used to enhance cooling of small spaces and basically consist of sealed tubes connecting a heat source, the evaporator, whose major part is a porous wick, with a condenser that operates as heat sink. In this paper we analyse the effect of curvature of the liquid vapor interface upon the vapor pressure within wick pores. We show how this effect affects start-up by ...
Some features of flow and particle transport in porous structures
Aydin, M; Balik, G; Miguel, A. F.; Reis, AThere has been a growing interest in the study of porous and complex flow structures due to its impact in technology. This concerns not only environmental but also diagnostic and therapeutic exposure in medical research. Physics of flow within porous structures is especially important to model transport and deposition of viruses, pollutants and drugs deep in these structures. In this work we analyze numerically...
Particle deposition in airway bifurcations in different breathing conditions
Miguel, A. F.; Reis, A; Aydin, M; Silva, AIn this paper, particle deposition in a rigid double bifurcation airway is studied experimentally. The effect of particle size and breathing conditions in the deposition are analyzed. Besides, the effect of airway obstruction (local reduction of airway diameter) that can be originated by some respiratory disorders is also studied. The experiments were performed in conditions of humidity near saturation in order...
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