مدل عددی لکه نفتی در منطقه جزیره خارک

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشگاه آزاد اسلامی واحد تهران شمال

2 دانشکده علوم و فنون دریایی-دانشگاه آزاد اسلامی واحد تهران شمال

3 دانشکده علوم و فنون دریایی - دانشگاه آزاد اسلامی واحد تهران شمال

چکیده

با استفاده از اطلاعات هیدروگرافی منطقه خلیج فارس و توسطنرم‌افزار21Mikeحرکت لکه نفتی در اطراف جزیره خارک مطالعه شده است. در این مدل ازشبکه‌بندی مثلثی نامنظم با 11325 گره و در نظر گرفتن سطح تراز جزر و مدی جزیره هنگام در تنگه هرمز و مرز خشکی در سواحل، شار جریان آببه‌دست آمده است. سپس جریان‌هایجزر و مدی در منطقه خارک بادر نظر گرفتن 3 مرز بازویک مرز خشکی (ساحل بوشهر) شبیه‌سازی شد.به‌منظور کالیبراسیون اطلاعات،سطح تراز جزر و مدی در ایستگاه خارک با خروجی سطح تراز جزر و مدی مدل مقایسه گردید. بر اساس نتایج مدل میزان نوسان‌های سطح آب ناشی از جزر و مد از15-25 فوریه 2011، 33/0 تا 27/2 مترواندازه سرعتجریان‌هایجزر و مدی از 0 تا 7/0 متربرثانیه محاسبه شد.همچنین میزان نوسان‌های سطح آب ناشی از جزر و مد از 10 الی 20 آگوست 2011،36/0 تا 19/2 متر و اندازه سرعتجریان‌هایجزر و مدی0 تا 6/0 متر بر ثانیه حاصل شد.بر اساس مقدار جریان به‌دست‌آمده از مدل برای یک ایستگاه،سری زمانی جریان جزر و مدی رسم و معادله مکان زمان آن به‌دست آورده شد. برای به‌دست آوردن مسیر طی شده توسط لکه نفتی با استفاده از نرم‌افزار2Adioseمدت زمان رسیدن لکه به حالت امولوسیون کامل ودر نتیجه توقف لکه به‌دست آمده است.سرعت جریان‌هایجزر و مدیبه‌دست‌آمدهدرماه فوریه 2011 بیشتر از آگوست 2011 استودر نتیجه در فوریه 2011 در حرکت لکه نفتی نوسان زیادی مشاهده می‌شود.

کلیدواژه‌ها

عنوان مقاله [English]

Oil spill simulation in the Khark Island region

نویسندگان [English]

  • Helen Mirzaie 1
  • Masoud Torabi Azad 2
  • Afshin Mohseni Arasteh 3
1 Faculty of Marine Science and Technology, Islamic Azad University, North Tehran Branch, Tehran, Iran
2 Islamic Azad University, North Tehran Branch, Tehran, Iran
3 Faculty of Marine Science and Technology, Islamic Azad University, North Tehran Branch, Tehran, Iran
چکیده [English]

In this paper, the movement of an oil spill around the Khark Island has been studied, using the hydrographic information of the Persian Gulf region and the Mike21 software. To obtain the water flow flux, a model with an irregular triangular network containing 11325 nodes was assumed and the tidal level of Hengam Island in the Strait of Hormuz and the land boundary condition on the coast were considered. Then the tidal currents in the Khark region were simulated by considering 3 open boundaries and one land boundary (the Bushehr coast). In order to calibrate the information, the tidal level in Khark station was compared with the output of the model tidal level. Based on the results of the model, the amount of water level fluctuations caused by the tides from February 15-25, 2011 were calculated to be in the range of 0.33 to 2.27 meters and the speed of the tidal currents were calculated from 0 to 0.7 meters per second. Also, the amount of water level fluctuations caused by the tides from 10 to 20 August 2011 were 0.36 to 2.19 meters and the speed of tidal currents were 0 to 0.6 meters per second. Based on the value of current obtained from the model for a station, the tidal current time series was plotted and its time-space equation was obtained. To obtain the path taken by the oil spill, the time for the spill to reach full emulsion and thus stop, is obtained using Adios2 software. In 2011 the tidal currents obtained in February were faster than August and as a result, in February 2011, there were a lot of fluctuations in the movement of the oil spill.

کلیدواژه‌ها [English]

  • Tidal current
  • Oil spill –Mike 21 soft ware
  • Adios soft ware
  • Persian Gulf
  • khark Island

مراجع

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سابقه مقاله

  • تاریخ دریافت: 13 آبان 1398
  • تاریخ بازنگری: 17 اسفند 1398
  • تاریخ پذیرش: 08 تیر 1399
  • تاریخ انتشار: 08 آذر 1400

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