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اولین تجربه سامانه تیکه‌نگاری صوتی برای پایش سرعت جریان رودخانه در ایران | ||
| تحقیقات آب و خاک ایران | ||
| مقاله 17، دوره 50، شماره 7، آذر 1398، صفحه 1793-1800 اصل مقاله (914.65 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22059/ijswr.2019.274448.668106 | ||
| نویسندگان | ||
| مسعود بحرینی مطلق* 1؛ عباس کاظمی خشویی2؛ رضا روزبهانی3؛ مرتضی افتخاری4؛ حمید کاردان مقدم5 | ||
| 1استادیار پژوهشکده مطالعات و تحقیقات منابع آب، موسسه تحقیقات آب، تهران، ایران | ||
| 2رئیس گروه آب سطحی دفتر مطالعات پایه منابع آب، شرکت آب‌منطقه‌ای اصفهان، اصفهان، ایران | ||
| 3رئیس پژوهشکده مطالعات و تحقیقات منابع آب، موسسه تحقیقات آب، تهران،ایران | ||
| 4رئیس موسسه تحقیقات آب، تهران، ایران | ||
| 5کارشناس پژوهشی پژوهشکده مطالعات و تحقیقات منابع آب، موسسه تحقیقات آب، تهران، ایران | ||
| چکیده | ||
| پایش پیوسته و دقیق سرعت جریان در رودخانه‌ها یکی از چالش‌های مهم مدیریت منابع آب است. در ایران سرعت جریان در رودخانه با استفاده از مولینه تخمین‌زده می‌شود. در این پژوهش برای اولین بار در ایران، سرعت جریان در رودخانه زاینده‌رود در محل ایستگاه چم‌طاق با استفاده از دستگاه تیکه‌نگاری صوتی مورد سنجش قرار گرفت. بدین منظور از دو دستگاه تیکه‌نگاری صوتی استفاده گردید و سیگنال‌های صوتی با بسامد ۳۰ کیلوهرتز در هر۳۰ ثانیه ارسال گردید. بر این اساس دبی اندازه‌گیری شده مقدار ۹/۹ مترمکعب بر ثانیه به دست آمد. در همان شرایط میزان آبدهی رودخانه با استفاده از نمودار دبی- اشل موجود به میزان ۳/۱۰ مترمکعب بر ثانیه برآورد شد. با تحلیل خطای اندازه‌گیری روش تیکه‌نگاری صوتی، حداکثر عدم قطعیت اندازه‌گیری سرعت جریان با استفاده از این فناوری ۱۵ درصد محاسبه شد. همچنین تحلیل خطای دستگاه تیکه‌نگاری صوتی برای رودخانه‌های مختلف مورد تحلیل و بررسی قرار گرفت و بهترین نحوه تنظیم نصب دستگاه به منظور حداقل رساندن میزان عدم قطعیت توصیه گردید. | ||
| کلیدواژه‌ها | ||
| ایستگاه آب سنجی؛ مولینه؛ پایش پیوسته سرعت جریان آب؛ فناوری تیکه‌نگاری صوتی | ||
| عنوان مقاله [English] | ||
| The First Fluvial Acoustic Tomography System Experience for River Flow Velocity Monitoring in Iran | ||
| نویسندگان [English] | ||
| Masoud Bahreinimotlagh1؛ Abbas Kazemi khoshuei2؛ Reza Roozbahani3؛ Mortaza Eftekhari4؛ Hamid Kardan Moghadam5 | ||
| 1Assistant Professor Water Resources Research Department, Water Research Institute, Tehran, Iran | ||
| 2The Dean of Surface Water Group, Office of Water Resources Assessment, Regional Water Organization, Isfahan, Iran | ||
| 3The Dean of Water Resources Research Department, Water Research Institute, Tehran, Iran | ||
| 4The Dean of Water Research Institute, Tehran, Iran | ||
| 5Scientific staff of Water Resources Research Department , Water Research Institute, Tehran, Iran | ||
| چکیده [English] | ||
| The acquisition of continuous and precise river flow velocity is a high-priority issue for water resources management. In Iran, the river flow velocity is estimated using mechanical propeller flow meter. In this research, for the first time in Iran, the river flow velocity at the Chamtagh hydrometric station of the Zayanderud River was measured using Fluvial Acoustic Tomography System (FATS) technology. The reciprocal sound transmissions were performed between a pair of acoustic stations, located on both sides of the hydrometric station. Acoustic frequency was 30 kHz and the sound pulses were transmitted every 30 seconds. The measured stream flow discharge was 9.9 m3/s, while, the estimated flow rate by propeller flow meter was 10.3 m3/s. In this experiment, the maximum uncertainty of FATS was less than 15%. Moreover, the error analysis of the FATS was investigated for different rivers and the optimal setting of FATS was introduced. | ||
| کلیدواژه‌ها [English] | ||
| Hydrometric station, Continuous monitoring of river flow velocity, Fluvial Acoustic Tomography System | ||
| مراجع | ||
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