軌道交通單豎井隧道環(huán)境的空氣湍流折射率結(jié)構(gòu)常數(shù)模型及分析

趙恒凱; 付新濤

doi:10.11999/JEIT160632

軌道交通單豎井隧道環(huán)境的空氣湍流折射率結(jié)構(gòu)常數(shù)模型及分析

doi: 10.11999/JEIT160632 cstr: 32379.14.JEIT160632

趙恒凱¹,
付新濤²

2.
(上海大學(xué)通信與信息工程學(xué)院上海 200444) ②(上海大學(xué)特種光纖與光接入網(wǎng)省部共建重點(diǎn)實(shí)驗(yàn)室上海 200072)

基金項(xiàng)目:

國(guó)家自然科學(xué)基金(61271061, 61132003)

計(jì)量
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- 被引次數(shù): 0
出版歷程
- 收稿日期: 2016-06-15
- 修回日期: 2016-12-15
- 刊出日期: 2017-04-19

Model and Analysis of Atmospheric Turbulence Index Structure Parameter in the Single-shaft Tunnel of Rail Transit Environment

ZHAO Hengkai¹,
FU Xintao²

Funds:

The National Natural Science Foundation of China (61271061, 61132003)

摘要

摘要: 空氣湍流的變化影響微波的傳輸。為了研究軌道交通隧道環(huán)境下空氣湍流對(duì)微波傳輸?shù)挠绊?，該文結(jié)合活塞風(fēng)的運(yùn)動(dòng)特性以及大氣折射率結(jié)構(gòu)常數(shù)的計(jì)算方法，建模隧道環(huán)境溫度、隧道長(zhǎng)度、阻塞比、活塞風(fēng)速等參數(shù)對(duì)折射率結(jié)構(gòu)常數(shù)的影響，構(gòu)建軌道交通單豎井隧道環(huán)境下的空氣湍流折射率結(jié)構(gòu)常數(shù)模型；基于實(shí)際隧道溫度場(chǎng)景，分析了軌道交通隧道環(huán)境下折射率結(jié)構(gòu)常數(shù)的分布規(guī)律，比較了列車經(jīng)過有單豎井和無單豎井的隧道時(shí)，空氣湍流折射率結(jié)構(gòu)常數(shù)的變化。該模型為研究軌道交通隧道環(huán)境中電波折射率結(jié)構(gòu)常數(shù)提供理論參考。
- 空氣湍流 /
- 微波 /
- 折射率結(jié)構(gòu)常數(shù) /
- 單豎井隧道 /
- 活塞風(fēng)
Abstract: The change of the atmospheric turbulence affects the transmission of microwave. In order to study the impact of turbulence on the microwave transmission in rail transit tunnel environment, this paper combines the motion characteristics of the piston wind with the calculation method of atmospheric refractive index structure parameter. With investigation into the influences of tunnel environmental temperature, length of tunnel, blockage ratio, and piston wind speed on the atmospheric refractive index structure parameter, an atmospheric refractive index structure parameter model is established in the single-shaft rail transit tunnel environment. In this paper, the distribution of the atmospheric refractive index structure constant in rail transit tunnel environment is analyzed, and the change of atmospheric turbulence refractive index structure parameter in case of the train through the single-shaft tunnel with that of no single-shaft tunnel is compared based on the actual tunnel temperature scene. The model provides a theoretical reference for the study of radio refractive index structure constant in rail transit tunnel environment.
- Atmospheric turbulence /
- Microwave /
- Refractive index structure constant /
- Single-shaft tunnel /
- Piston wind

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