Home  About Journal  Editorial Board  Instruction  Subscription  Contact Us   Message Board  
JMT 2016, Vol. 24 Issue (4) :261-269    DOI: 10.1007/s40534-016-0115-5
Articles Current Issue | Next Issue | Archive | Adv Search << Previous Articles | Next Articles >>
Mechanism and effects of snow accumulations and controls by lightweight snow fences
Duote Liu1, Yongle Li1, Bin Wang1, Peng Hu2, Jingyu Zhang1*
1 Department of Bridge Engineering, Southwest Jiaotong University, Chengdu 610031, China;
2 Department of Bridge Engineering, Changsha University of Science and Technology, Changsha 410076, China

Abstract
Reference
Related Articles
Download: PDF (1996KB)   HTML 1KB   Export: BibTeX or EndNote (RIS)      Supporting Info
Abstract This paper investigates the snowdrifts caused by lightweight fences along the lines on the flatland through the computational fluid dynamics method. The characteristic ambient flows around the solid fences and the porous fences with varied heights and bottom wind gaps are simulated in the numerical model, and the working mechanism of "interception" and "scouring" of the lightweight fences are analyzed. Based on the friction velocities near the ground, two sets of criteria are proposed to evaluate the deposition and erosion effects of different fences. According to flow separation and reattachment, the simplified relationships between the most likely positions for snow accumulations and fence parameters are developed. The study indicates that the capabilities for snow interception by the solid fence without wind gap and the distance from which to the second snow coverage center both increase with the fence height. Furthermore, it is found that the scouring range for snow surface increases significantly with the size of wind gap, and the snow accumulation rate on the leeward side decreases with the increasing fence porosity.
Service
Email this article
Add to my bookshelf
Add to citation manager
Email Alert
RSS
Articles by authors
KeywordsLightweight fence   Snowdrift   CFD   Mechanism of snow accumulation   Fence type   Fence parameter     
Received 2016-01-10;
Fund:

The authors are grateful for the supports of the National Natural Science Foundation of China (No. 51525804), the Sichuan Province Youth Science and Technology Innovation Team (No. 2015TD0004), and the Construction Technology Project of China Transport Ministry (No. 2014318800240).

Corresponding Authors: Yongle Li,lele@swjtu.edu.cn     Email: lele@swjtu.edu.cn
Cite this article:   
Duote Liu, Yongle Li, Bin Wang, Peng Hu, Jingyu Zhang.Mechanism and effects of snow accumulations and controls by lightweight snow fences[J]  JMT, 2016,V24(4): 261-269
URL:  
http://jmt.swjtu.edu.cn/EN/10.1007/s40534-016-0115-5      or     http://jmt.swjtu.edu.cn/EN/Y2016/V24/I4/261
Copyright 2010 by JMT