基于FLUENT 测轨道交通隧道中电波折射率结构常数

doi:10.3969/j.issn.1007-2861.2013.07.031

Abstract

Abstract: To evaluate the characteristics of turbulent flow in a rail transit tunnel environment, this paper simulates the turbulent flow field due to the fast moving trains in a subway tunnel. Using parameters obtained from Shanghai Metro Line 1, the distribution diagrams of pressure and temperature fields are obtained. In the simulation, a commercial software package for computational fluid dynamics (CFD), FLUENT, is used. A set of data from the distribution diagrams is selected to solve the refractive index structure parameters of radio wave under such environmental condition. The calculated results are compared with published experimental data, showing a good agreement. Therefore, the proposed method provides a useful solution to refractive index structure parameters of radio wave.

Key words: refractive index, tunnel, turbulent

CLC Number:

TN 929.4

ZHANG Yong-jing, ZHAO Dong-dong. Structure Parameter Estimation of Radio Wave Refractive Index in Rail Transit Tunnel Based on FLUENT[J]. Journal of Shanghai University（Natural Science Edition）, 2014, 20(4): 458-465.

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Structure Parameter Estimation of Radio Wave Refractive Index in Rail Transit Tunnel Based on FLUENT

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