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Strategic Study of CAE >> 2006, Volume 8, Issue 1

Application of Zero Equation Turbulence Model for Numerical Simulation of Air Distribution in Train Compartment

1. Institute of Refrigeration and Air-Conditioning , Central South University , Changsha 410075 , China

2. School of Energy Source and Dynamic , Changsha University of Science and Technology , Changsha 410076 , China

Funding project:湖南省教育厅资助项目(04C111) Received: 2005-03-31 Revised: 2005-06-30 Available online: 2006-01-20

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It will cost much time for numerical simulation of air distribution in train compartment using k - ε turbulence model, so zero equation turbulence model is used for simulating airflow in train compartment. In this paper, zero equation turbulence model and k - ε turbulence model were applied for numerical simulation of indoor fluid flow and heat transfer respectively. By comparison, the results come from these two. methods are inosculated very well, and the time cost by zero equation turbulence model is very little. So zero equation turbulence model has the merit of simpleness and quickness, it will provide a simple and convenient numerical simulation method for the design of train air-conditioning system.


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