Numerical simulation of a cool air flow inside the first part of 06T-Cagliari tram passenger space

Conference paper (2006)

Authors

J. Vimmr

J. Novak

Air-conditioning Boussinesq approximation Rail vehicle Internal air flow

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Published Date

08-09-2006

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Abstract

This paper deals with application of CFD methods contained in professional software package Fluent on a numerical solution of engineering practice problem which consists in numerical simulations of a cool air flow inside the first part of 06T-Cagliari tram passenger space. The air-conditioner exhausts a cool air into the internal passenger space via outlet gaps of longitudinal air channels. A cool air is assumed incompressible according to the Boussinesq approximation and its flow inside the closed passenger space is solved as an unsteady natural convection problem. The numerical simulations are realized for two computational models without and with passengers aboard. Computed values of the air velocity and temperature are compared with recommended limiting values published in available relevant standards.

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