地鐵車站熱環(huán)境狀態(tài)與隧道圍巖傳熱的研究
發(fā)布時間:2019-03-30 20:09
【摘要】:摘要:地鐵系統(tǒng)目前已成為一種廣泛應(yīng)用的交通系統(tǒng),地鐵站內(nèi)部的環(huán)境問題也日益突出。而地鐵站環(huán)境控制系統(tǒng)是地鐵系統(tǒng)中調(diào)節(jié)內(nèi)部環(huán)境空氣質(zhì)量、提高舒適度、保證安全運營必不可少的組成部分。因此,對地鐵內(nèi)部環(huán)境及其控制系統(tǒng)的研究將成為目前與今后很長一段時期內(nèi)的一個重要課題。 本論文以“北京地鐵內(nèi)部環(huán)境質(zhì)量監(jiān)測分析與預報控制應(yīng)用研究”為背景,以復興門站為主要研究對象,采用現(xiàn)場實際觀測、理論分析與數(shù)值模擬相結(jié)合的方法進行研究。主要研究地鐵站內(nèi)部的熱環(huán)境和區(qū)間隧道溫度場。 本文首先介紹了地鐵內(nèi)部熱環(huán)境和區(qū)間隧道溫度場的分布規(guī)律,討論了分析的原理和方法,并根據(jù)實際流場情況,利用質(zhì)量守恒方程、動量守恒方程、能量守恒方程,k-ε方程,建立起地鐵內(nèi)空氣流動與傳熱的數(shù)學模型:然后在現(xiàn)場進行了必要測試,通過對所測數(shù)據(jù)的處理,獲得了進行數(shù)值模擬計算所需的邊界條件以及檢驗?zāi)M結(jié)果是否正確的實測數(shù)據(jù);再使用計算流體力學(CFD)軟件PHOENICS建立其物理模型,輸入適當?shù)倪吔鐥l件,得到地鐵站內(nèi)部熱分布的規(guī)律。同時利用Ansys模擬出區(qū)間隧道的溫度場,得到相應(yīng)的規(guī)律。 本論文的創(chuàng)新點在于:1)通過數(shù)值模擬定義了區(qū)間隧道圍巖的最大蓄熱量;2)通過數(shù)值模擬對區(qū)間隧道圍巖的未來運營的溫度場分布進行預測;3)對區(qū)間隧道圍巖的產(chǎn)熱規(guī)律進行探究;4)通過數(shù)值模擬加現(xiàn)場實測數(shù)據(jù)驗證明確了地鐵站內(nèi)部的熱分布規(guī)律;
[Abstract]:Abstract: subway system has become a widely used transportation system at present, and the environmental problems in subway station are becoming more and more prominent. The subway station environment control system is an essential part of the subway system to regulate the internal air quality, improve comfort, and ensure safe operation. Therefore, the study of subway internal environment and its control system will be an important topic for a long time now and in the future. In this paper, "Beijing Metro Internal Environmental quality Monitoring, Analysis and Forecast Control Application Research" as the background, Fuxingmen Station as the main research object, using field observation, theoretical analysis and numerical simulation method to carry on the research. The thermal environment and temperature field of tunnel in subway station are studied in this paper. In this paper, the distribution law of the thermal environment and the temperature field in the tunnel is introduced, and the principle and method of the analysis are discussed. According to the actual flow field, the mass conservation equation, momentum conservation equation and energy conservation equation are used. K-蔚 equation, the mathematical model of air flow and heat transfer in subway is established. Then the necessary tests are carried out in the field, and the measured data are processed. The boundary conditions required for numerical simulation calculation and the measured data to verify whether the simulation results are correct or not are obtained. Then the physical model is established by using the computational fluid dynamics (CFD) software PHOENICS and the proper boundary conditions are inputted to obtain the heat distribution law within the subway station. At the same time, the temperature field of interval tunnel is simulated by Ansys, and the corresponding law is obtained. The innovation of this paper is as follows: 1) the maximum heat storage of the surrounding rock of the interval tunnel is defined by numerical simulation; 2) the temperature field distribution of the surrounding rock of the interval tunnel is predicted by numerical simulation; 3) probe into the heat production law of surrounding rock of interval tunnel; 4) confirm the heat distribution law of subway station by numerical simulation and field measurement data;
【學位授予單位】:北京交通大學
【學位級別】:碩士
【學位授予年份】:2014
【分類號】:U231.4;U451.2
本文編號:2450437
[Abstract]:Abstract: subway system has become a widely used transportation system at present, and the environmental problems in subway station are becoming more and more prominent. The subway station environment control system is an essential part of the subway system to regulate the internal air quality, improve comfort, and ensure safe operation. Therefore, the study of subway internal environment and its control system will be an important topic for a long time now and in the future. In this paper, "Beijing Metro Internal Environmental quality Monitoring, Analysis and Forecast Control Application Research" as the background, Fuxingmen Station as the main research object, using field observation, theoretical analysis and numerical simulation method to carry on the research. The thermal environment and temperature field of tunnel in subway station are studied in this paper. In this paper, the distribution law of the thermal environment and the temperature field in the tunnel is introduced, and the principle and method of the analysis are discussed. According to the actual flow field, the mass conservation equation, momentum conservation equation and energy conservation equation are used. K-蔚 equation, the mathematical model of air flow and heat transfer in subway is established. Then the necessary tests are carried out in the field, and the measured data are processed. The boundary conditions required for numerical simulation calculation and the measured data to verify whether the simulation results are correct or not are obtained. Then the physical model is established by using the computational fluid dynamics (CFD) software PHOENICS and the proper boundary conditions are inputted to obtain the heat distribution law within the subway station. At the same time, the temperature field of interval tunnel is simulated by Ansys, and the corresponding law is obtained. The innovation of this paper is as follows: 1) the maximum heat storage of the surrounding rock of the interval tunnel is defined by numerical simulation; 2) the temperature field distribution of the surrounding rock of the interval tunnel is predicted by numerical simulation; 3) probe into the heat production law of surrounding rock of interval tunnel; 4) confirm the heat distribution law of subway station by numerical simulation and field measurement data;
【學位授予單位】:北京交通大學
【學位級別】:碩士
【學位授予年份】:2014
【分類號】:U231.4;U451.2
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