Abstract
ABSTRACTRecalling the previous global outbreaks of diseases including severe acute respiratory syndrome spread in public transportation cabins, the investigation of transport characteristics of containments through the high-speed trains (HSTs) cabin is critical due to the currently fast development of high-speed rail around the world. For quantitatively analysing the effects of diffuser on ventilation and spread of diseases in HST cabins, computational fluid dynamics (CFD) models containing four different diffuser types were developed in this study. The drift-flux model and Lagrangian model were applied. Simulation results indicated that the diffuser type significantly affects overall cabin airflow pattern. Even though all four types of diffusers applied in HST cabins could satisfy the thermal comfort criterion, containments dispersion processes varied. Besides, gaseous contaminants and particle contaminants transport also varied in the same ventilation conditions. Importantly, contaminants had locked-up zones around passengers due to the uprising passengers' thermal plume against the descending ventilation airflow.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
