干旱区生态环境知识资源中心(Arid): A Discussion of Mathematical Models Used to Simulate the Vertical Mass Flux Profile of the Mega-Dune

Arid

DOI	10.1088/1742-6596/1670/1/012011
	A Discussion of Mathematical Models Used to Simulate the Vertical Mass Flux Profile of the Mega-Dune
	Shi, Huanyu; Dong, Zhibao; Xiao, Nan; Huang, Qinni
通讯作者	Dong, ZB (corresponding author), Shaanxi Normal Univ, Sch Geog & Tourism, Xian, Peoples R China.
会议名称	3rd International Conference on Applied Mathematics, Modeling and Simulation (AMMS)
会议日期	SEP 20-21, 2020
会议地点	`, ELECTR NETWORK
英文摘要	The research of the sand transport profile is significant for the calculation of sediment transport rates and the improvement of previous models. However, there are few suitable mathematical models to simulate the stratification pattern of the vertical mass flux profile in sandy lands. The present study measured the sand flux vertical distribution within 30cm height with 2cm division at the windward slope and the top of the mega dune in the hinterland of Badain Jaran Desert in winter and used the method of function fitting to analyze the flux density profiles above each observation site. The results show that: (1) The sand-drift activity at each site of the mega-dune is in the erosional state. (2) Low temperature and snow cover have little effect on the vertical mass flux profile. (3) The slope is the key factor to affect the vertical mass flux profile. It is significant in the middle and upper-middle of the windward slope, the sediment transport rate decreases exponentially with the increase of the height. At the top of the slope, the sediment transport rate increases at the beginning and then decreases with the increase of the height, which is an Extreme function distribution. The present study use suitable mathematical models to simulate the stratification pattern of the sand transport profile in sandy lands, explains the physical significance of each fitting coefficients in the function, discusses the effect of the slope on the vertical mass flux profile, and provides theoretical support for the practice of sand-control.
来源出版物	2020 3RD INTERNATIONAL CONFERENCE ON APPLIED MATHEMATICS, MODELING AND SIMULATION
ISSN	1742-6588
EISSN	1742-6596
出版年	2020
卷号	1670
出版者	IOP PUBLISHING LTD
类型	Proceedings Paper
语种	英语
开放获取类型	gold
收录类别	CPCI-S
WOS记录号	WOS:000649665600011
WOS关键词	FIELD MEASUREMENT ; SAND TRANSPORT
WOS类目	Mathematics, Applied ; Mathematics, Interdisciplinary Applications
WOS研究方向	Mathematics
资源类型	会议论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/353049
作者单位	[Shi, Huanyu; Dong, Zhibao; Xiao, Nan; Huang, Qinni] Shaanxi Normal Univ, Sch Geog & Tourism, Xian, Peoples R China
推荐引用方式 GB/T 7714	Shi, Huanyu,Dong, Zhibao,Xiao, Nan,et al. A Discussion of Mathematical Models Used to Simulate the Vertical Mass Flux Profile of the Mega-Dune[C]:IOP PUBLISHING LTD,2020.