DPM dispersion inside a single straight entry using dynamic mesh model
Yi Zheng
Ying Li
Magesh Thiruvengadam
Hai Lan
Jerry C.Tien
摘要：Three-dimensional simulations of diesel particulate matter (DPM) distribution inside a single straight entry for the Load-Haul-Dump loader (LHD)-truck loading and truck hauling operations were conducted by using ANSYS FLUENT computational fluid dynamics software.The loading operation was performed for a fixed period of 3 min.The dynamic mesh technique in FLUENT was used to study the impact of truck motion on DPM distribution.The resultant DPM distributions are presented for the cases when the truck were driving upstream and downstream of the loading face.Interesting phenomena were revealed in the study including the piston effect,layering of DPM in the roof region,and backflow of diesel exhaust against ventilation.The results from the simulation can be used to determine if the areas inside the face area and straight entry exceed the current U.S.regulatory requirement for DPM concentration (＞160 μg/m3).This research can guide the selection of DPM reduction strategies and improve the working practices for the underground miners.
机标关键词：computational fluid dynamicsparticulate matterdiesel exhaustselection of
资助基金：The authors wish to express their sincere gratitude to the financial support provided by the Western US Mining Safety and Health Training and Translation Center by the National Institute for Occupational Safety and Health (NIOSH) (Grant Number 1 R25 OH008319)
论文发表日期：2017-01-01
在线出版日期：2025-08-15（本平台首次上网日期，不代表文献的发表时间）
页数：11( 234-244 )
英文信息