2011•Journal of Shanghai University of Engineering ScienceRequires access

Improved Design of Car Central Air-Conditioning Duct System Based on CFD

Zhu Fa-long

Abstract

By using the 3D incompressible k-e turbulence model,a typical car air duct model with complex structure was established based on CFD method.Take the central air duct of the air-conditioning system for example,air-flow in the main part of the air duct was simulated and analyzed by Fluent software,the performance of the air duct was improved through optimization design,thus the uniformity of the central air duct outlets was greatly improved and the total volume of air was increased.All these improvements can obtain a reasonable air supply of central air duct and improve the car interior comfort.

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Key concepts: Duct (anatomy), Computational fluid dynamics, Turbulence, Air conditioning, Airflow, Variable air volume, Fluent, Central air conditioning