土木工程畢業(yè)設(shè)計外文翻譯---cfd模擬和地鐵站臺的優(yōu)化通風(fēng)節(jié)選-建筑結(jié)構(gòu)(已修改)
2025-06-01 13:53 本頁面
【正文】 外文資料翻譯 第 1 頁 CFD simulation and optimization of the ventilation for subway sideplatform FengDong Yuan *, ShiJun You Abstract To obtain the velocity and temperature field of subway station and the optimized ventilation mode of subway sideplatform station, this paper takes the evaluation and optimization of the ventilation for subway sideplatform station as main line, builds three dimensional models of original and optimization design of the existed and rebuilt station. And using the twoequation turbulence model as its physics model, the thesis makes putational fluid dynamics (CFD) simulation to subway sideplatform station with the boundary conditions collected for simulation putation through field measurement. It is found that the twoequation turbulence model can be used to predict velocity field and temperature field at the station under some reasonable presumptions in the investigation and study. At last, an optimization ventilation mode of subway sideplatform station was put forward. 1. Introduction Computational fluid dynamics (CFD) software is monly used to simulate fluid flows, particularly in plex environments (Chow and Li, 1999。 Zhang et al., 2020。 Moureh and Flick, 2020). CFD is capable of simulating a wide variety of fluid problems (Gan and Riffat, 2020。 Somarathne et al., 2020。 Papakonstantinou et al., 2020。 Karimipanah and Awbi, 2020). CFD models can be realistically modeled without investing in more costly experimental method (Betta et al., 2020。 Allocca et al., 2020。 Moureh and Flick, 2020). So CFD is now a popular design tool for engineers from different disciplines for pursuing an optimum design due to the high cost, plexity, and limited information obtained from experimental methods (Li and Chow, 2020。 Vardy et al., 2020。 Katolidoy and Jicha, 2020). Tunnel ventilation system design can be developed in depth from the predictions of various parameters, such as vehicle emission dispersion, visibility, air velocity, etc. (Li and Chow, 2020。 Yau et al., 2020。 Gehrke et al., 2020). 外文資料翻譯 第 2 頁 Earlier CFD simulations of tunnel ventilation system mainly focus on emergency situation as fire condition (Modic, 2020。 Carvel et al., 2020。 Casale, 2020). Many scientists and research workers (Waterson and Lavedrine, 2020。 Sigl and Rieker, 2020。 Gao et al., 2020。 Tajadura et al., 2020) have done much work on this. This paper studied the performance of CFD simulation on subway environment control system which has not been studied by other paper or research report. It is essential to calculate and simulate the different designs before the construction begins, since the investment in subway’s construction is huge and the subway should run up for a few decade years. The ventilation of subway is crucial that the passengers should have fresh and high quality air (Lowndes et al., 2020。 Luo and Roux, 2020). Then if emergency occurred that the welldesigned ventilation system can save many people’s life
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