中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 力学研究所
  3. 中国科学院力学研究所
  4. 流固耦合系统力学重点实验室(2012-)
Study on mathematical model construction of typical gorge wind field

文献类型：期刊论文

作者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); Yang GW(杨国伟); Guo DL(郭迪龙); Sun ZX(孙振旭); Cheng JH(成炯豪)
刊名ENGINEERING APPLICATIONS OF COMPUTATIONAL FLUID MECHANICS
出版日期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
DOI10.1080/19942060.2023.2249132
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.
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-)
通讯作者Guo DL(郭迪龙)
作者单位1.Chinese Acad Sci Inst Mech Key Lab Mech Fluid Solid Coupling Syst Beijing Peoples R China
2.Beijing Jiaotong Univ Sch civil engn Beijing Peoples R China
3.Univ Chinese Acad Sci Sch Engn Sci 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.,...&Cheng JH.(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.

入库方式： OAI收割

来源：力学研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。