Paper Title:
Numerical Simulation of Body Heat Transfer Coefficient Test of a Railway Vehicle
  Abstract

The body heat transfer coefficient of a railway vehicle is an essential parameter for designing vehicle. The proposed method in this paper could be used to simulate the test conditions of body heat transfer coefficient of a railway vehicle. The simulated object was a middle of high speed train and the numerical simulation was two-dimensional due to the limitation of RAM capacity of PC computers. Simulation results with five different meshing showed body heat transfer coefficient was affected greatly by the amount of grids. Existence of thermal bridge would increase body heat transfer coefficient significantly, which was concluded by the simulation of two models. Three typical cross sections of a middle were used for simulation of the body heat transfer coefficient and the weighted mean value was 1.30 W/m2•K. The difference was only 7% compared with the actual test value of 1.215 W/m2•K, which indicated the advantage of this method.

  Info
Periodical
Advanced Materials Research (Volumes 291-294)
Chapter
Thermal Engineering Theory and Applications
Edited by
Yungang Li, Pengcheng Wang, Liqun Ai, Xiaoming Sang and Jinglong Bu
Pages
1713-1721
DOI
10.4028/www.scientific.net/AMR.291-294.1713
Citation
J. B. Zang, M. W. Cai, N. P. Gao, "Numerical Simulation of Body Heat Transfer Coefficient Test of a Railway Vehicle", Advanced Materials Research, Vols. 291-294, pp. 1713-1721, 2011
Online since
July 2011
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Price
$32.00
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