This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Computational fluidodynamic study applied in incompressible air flow in automotive duct
Technical Paper
2018-36-0087
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
The design of air ducts of an Automotive Ventilation System presents as one of the complicators the restriction of space. In its design a symmetrical configuration is not always possible, due to the presence of anothers components of the vehicle, thus the ducts are distributed in asymmetric structures and normally have sharp curves, configurations that contribute to the loss, irregular distribution of the flow and production of noise. This work presents a numerical study of the incompressible flow of air in the ducts of an automotive ventilation system. The purpose is to study and compare the behavior of the fluid dynamic flow, the loss on the process and the flow distribution between two different ducts: one with symmetrical geometry and the other one with asymmetrical geometry. The study was performed using commercial software Star CCM +® that employs finite volume method. The results for each type of duct were relevant to the conclusion that the non-symmetry of the ventilation duct causes significant impacts. The symmetric duct geometry resulted in similar values for the air flow at diffuser placed on right and left side at car console, on the other hand, the asymmetric duct geometry had 7.89% more air flow rate at the right vent compared to the left vent. The pressure found for the symmetric geometry was 3.9% higher than relative asymmetric geometry. With this study, it was possible to visualize the impact that the space constraint, consequently the asymmetrical geometry, induced in the quality of the vehicle's air conditioning system.
Authors
Citation
Oliveira e Caldeira, L., Capanema, M., and Fonseca de Souza, J., "Computational fluidodynamic study applied in incompressible air flow in automotive duct," SAE Technical Paper 2018-36-0087, 2018, https://doi.org/10.4271/2018-36-0087.Data Sets - Support Documents
Title | Description | Download |
---|---|---|
Unnamed Dataset 1 | ||
Unnamed Dataset 2 |
Also In
References
- BICALHO, Gustavo I. Aumento da eficiência do ar condicionado veicular pela melhoria do sistema de ventilação. 2009. 166 folhas. Programa de Pós-Graduação em engenharia Mecânica
- CARMIGNAN NETO, Dionísio. Análise numérica de um sistema de ventilação automotivo 2011 2011
- ÇENGEL, Yunus A. ; CIMBALA, John M. Mecânica dos Fluidos: Fundamentos e Aplicaões 1 São Paulo McGraw-Hill 2007
- FORTUNA, A. R. 2000 Técnicas computacionais para dinâmica dos fluidos: conceitos básicos e aplicaões São Paulo Editora USP
- FOX, W.R. ; MCDONALD, A.T. Introdução à Mecânica dos Fluidos 5 Rio de Janeiro LTC 1992
- FOX, W.R. ; MCDONALD, A.T. Introduction to Fluid Mechanics 8 John Wiley and Sons Manhattan 2011
- MALISKA, CLOVIS R. 2010 Transferência de Calor e Mecânica dos Fluidos Computacional 2 Editora LTC
- PATANKAR, S. V. 1980 Numerical Heat Transferand Fluid Flow Hemiphere Publishing Corporation
- SACAMOTO, Flávio S. Sistema de ar condicionado automotivo Treinamento Delphi Piracicaba, São Paulo 2006 56
- STAR-CCM+ Version 9.02: User Guide Star-CCM+, CD- adapco 2010
- VERSTEEG , H. K. ; MALALASEKERA , W. An Introduction to Computational Fluid Dynamics - The Finite Volume Method. 2. ed.Essex: Pearson EducationLimited 2007 503