Study on mathematical model construction of typical gorge wind field

doi:10.1080/19942060.2023.2249132

CORC > 力学研究所 > 中国科学院力学研究所 > 流固耦合系统力学重点实验室(2012-)

	Study on mathematical model construction of typical gorge wind field
	Cheng JH(成炯豪); Sun ZX(孙振旭); Ju SJ(鞠胜军); Yang GW(杨国伟); Mao, Jun ; Guo DL(郭迪龙)
刊名	ENGINEERING APPLICATIONS OF COMPUTATIONAL FLUID MECHANICS
	2023-12-31
卷号	17 期号:1 页码:2249132
关键词	Wind field characteristics mathematical model roughness numerical simulation wind speed fitting
ISSN号	1994-2060
DOI	10.1080/19942060.2023.2249132
英文摘要	Wind conditions in gorges have a significant impact on the safe operation of high-speed trains, due to the lack of a unified gorge wind model and the limitations of traditional simulations that use oversimplified wind models, the complex wind speed distribution arising from the mountain surface boundary layer cannot be accurately captured. To address this, a three-dimensional, incompressible, steady calculation method is used to study wind field characteristics in a typical gorge. We propose a two-dimensional mathematical model to study the effects of gorge width on model parameters, including wind speed growth indices a(1) and a(2) in the height and horizontal directions, respectively. Our results demonstrate that the thickness of the mountain boundary layer can reach a maximum of approximately 30 metres, and the values of a(1) and a(2) range from 0.11 to 0.19 and 0.21 to 0.5, respectively. As gorge width increases, boundary layer thickness remains constant, a(1) gradually decreases, a(2 )remains unchanged above 250 m height. Our findings provide more accurate boundary conditions for numerical simulations of high-speed train operation in gorge wind conditions and offer theoretical recommendations for safe high-speed train operation through bridges, tunnels, and railways in mountainous regions.
分类号	一类
WOS研究方向	Engineering ; Mechanics
语种	英语
WOS记录号	WOS:001053427800001
资助机构	National Natural Science Foundation of China [52172336] ; China National Railway Group Science and Technology Program [N2022T001]
其他责任者	Guo, DL (corresponding author), Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing, Peoples R China.
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/92639]
专题	力学研究所_流固耦合系统力学重点实验室(2012-)
作者单位	1.Beijing Jiaotong Univ Sch civil engn Beijing Peoples R China 2.Univ Chinese Acad Sci Sch Engn Sci Beijing Peoples R China 3.Chinese Acad Sci Inst Mech Key Lab Mech Fluid Solid Coupling Syst Beijing Peoples R China
推荐引用方式 GB/T 7714	Cheng JH,Sun ZX,Ju SJ,et al. Study on mathematical model construction of typical gorge wind field[J]. ENGINEERING APPLICATIONS OF COMPUTATIONAL FLUID MECHANICS,2023,17(1):2249132.
APA	成炯豪,孙振旭,鞠胜军,杨国伟,Mao, Jun,&郭迪龙.(2023).Study on mathematical model construction of typical gorge wind field.ENGINEERING APPLICATIONS OF COMPUTATIONAL FLUID MECHANICS,17(1),2249132.
MLA	成炯豪,et al."Study on mathematical model construction of typical gorge wind field".ENGINEERING APPLICATIONS OF COMPUTATIONAL FLUID MECHANICS 17.1(2023):2249132.