بررسی تأثیر دیوارهای بادشکن بر رفتار آیرودینامیک قطار پرسرعت در مگاپروژه ملی راه‌آهن پرسرعت تهران- قم- اصفهان

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشجوی دکتری، مهندسی ماشین‌های ریلی، دانشگاه علم و صنعت ایران، تهران

2 دانشیار، دانشکده مهندسی راه آهن، دانشگاه علم و صنعت ایران، تهران

چکیده

قطارهای پرسرعت برون‌شهری یکی از گزینه‌های مناسب و مطلوب در جابجایی مسافر است و کشور ایران از سال‌ها پیش برای احداث این سامانه‌های حمل‌ونقل، به‌ویژه پروژه راه‌آهن پرسرعت تهران- قم- اصفهان که یکی از مگاپروژه‌های ملی می‌باشد، برنامه‌ریزی کرده است. لذا، به علت اهمیت زیاد این پروژه از حیث اولین تجربه و مسائل امنیتی پیش روی آن، در مقاله حاضر با یکی از جنبه‌های حیاتی  حمل‌ونقل ریلی که تضمین‌کننده ایمنی سفر مسافران قطارهای پرسرعت در این محور است پرداخته می‌شود. در مقاله حاضر، با مدل‌سازی هندسه بستر خط و قطار پرسرعت پروژه مذکور و شبیه‌سازی بدترین وضعیت آب و هوایی منطقه با تکیه بر داده‌های هواشناسی، سعی در شناخت رفتار قطار پرسرعت روی خط شده است و برای بالا بردن ضریب ایمنی خط، تأثیر نصب دیوارهای بادشکن بر خط بررسی گردیده است. نتایج به‌دست‌آمده ثابت کرد که دیواره سبب کاهش نیروی درگ می‌شود و افزایش ارتفاع آن، رشد بیشتری در کاهش این ضریب دارد. نتایج حاصل از این مقاله می‏تواند در بالا بردن مسائل ایمنی این پروژه بسیار مؤثر واقع گردد. 

کلیدواژه‌ها

عنوان مقاله [English]

Study of the Effects of Windbreaks on the Aerodynamic Behavior of High-Speed Train in Tehran-Qom-Isfahan High Speed Railway Megaproject

نویسندگان [English]

  • Masoud Mohebbi 1
  • Mohammad Ali Rezvani 2
1 School of Railway Engineering, Iran University of Science and Technology, Tehran, I. R. Iran.
2 School of Railway Engineering, Iran University of Science and Technology, Tehran, I. R. Iran
چکیده [English]

Intercity high speed trains are amongst the most suitable options for passenger travel. Iran has planned for these transportation systems, especially Tehran-Qom-Isfahan high speed rail project, which is a national megaproject. Therefore, due to the importance of this project in terms of its first experience and travel safety issues, it is discussed in this article. In the present article, by modeling the geometry of rail track embankment and high speed train of this project and simulating the worst weather conditions in the region, based on meteorological data, it is attempted to understand the behavior of high speed train on the proposed track, and to increase the transportation safety factor, the effect of installing of windshield walls is surveyed. Results proved that the presence of windbreak wall reduces the drag force. The outcome of this research can be very effective in raising the safety of travel along the tracks of this high speed rail corridor.

کلیدواژه‌ها [English]

  • High-speed railway
  • Windshield
  • Crosswind
  • Lattice Boltzmann method

مراجع

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سابقه مقاله

  • تاریخ دریافت: 17 دی 1396
  • تاریخ بازنگری: 22 بهمن 1396
  • تاریخ پذیرش: 03 اسفند 1396

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