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中南大学学报(英文版)

Journal of Central South University

Vol. 21    No. 6    June 2014

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Effects of expanding zone parameters of vacuum dust suction mouth on flow simulation results
ZHANG Yi-cheng(章易程)1, YANG Chun-zhao(杨春朝)1, Chris Baker2, CHEN Mo(陈默)1, ZOU Xiang(邹翔)1, DAI Wan-lin(戴万林)1

1. School of Traffic and Transportation Engineering, Central South University, Changsha 410075, China;
2. Centre for Railway Research and Education, University of Birmingham, Birmingham, Edgbaston, UK

Abstract:Based on the parametric analysis of the expanding zone of the vacuum dust suction mouth, the flow in the vacuum dust suction mouth was simulated by computational fluid dynamics (CFD) software, Fluent. The effects of the expanding zone parameters on flow simulation were analyzed. The results show that simulation effects depend on threshold values of the expanding zone parameters of the dust suction mouth, and the threshold values of the expanding zone can be obtained according to the different structures of the vacuum dust suction mouth and be selected as the geometric parameters in calculating, and also corners of the expanding zone make unobvious difference in calculation accuracy and in computational efficiency compared with no corner. The simulation results provide practical guidance to the flow simulation on the dust suction mouth.

 

Key words: dust suction mouth; expanding zone; threshold analysis; computational fluid dynamics

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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