شماره ركورد :
1128157
عنوان مقاله :
استخراج يك مدل تحليلي براي ارزيابي انتقال آلاينده ها از بدنه و مخازن سري بندهاي گابيوني
عنوان به زبان ديگر :
Derivation of an analytical solution for evaluation of the pollution transport in the interconnected reservoirs and rockfill bodies of gabion dams
پديد آورندگان :
چابك پور، جعفر دانشگاه مراغه - دانشكده فني - گروه مهندسي عمران , ذبيحي، محمد دانشگاه مراغه - دانشكده فني - گروه مهندسي عمران
تعداد صفحه :
18
از صفحه :
49
تا صفحه :
66
كليدواژه :
مخزن هاي سري , انتقال و پراكندگي آلودگي , مدل ذخيرهاي , تبديل لاپلاس
چكيده فارسي :
در اين تحقيق سعي شد تا با استفاده از يك مدل آزمايشگاهي و توسعه يك مدل تحليلي بر مبناي معادلات ديفرانسيل مدل ذخيره موقت، به بررسي كارايي اين مدل در فرآيند هاي انتقال و پراكندگي آلودگي در مخازن سري پرداخته شود. مدل تحليلي مذكور با استفاده از تبديل لاپلاس بر روي معادلات ديفرانسيل حل شد و با استفاده از داده هاي آزمايشگاهي برداشت شده در دو مخزن سري سنگدانه اي، ارزيابي كاملي بر روي كارايي و مقادير پارامتر هاي مدل انجام گرديد. سدهاي ايجاد شده در فلوم آزمايشگاهي با استفاده از سه دانه بندي مختلف با اقطار 1/1، 2/3 و 3/6 سانتي متر ايجاد شد ساير پارامتر هاي آزمايشگاهي شامل چهار دبي به ميزان 7، 9، 11 و 13/5 ليتر بر ثانيه و سه غلظت اوليه تزريقي به ميزان 100، 140 و 200 گرم بر ليتر بودند. مقدار متوسط سرعت عبوري، ضريب انتشار طولي و لگاريتم ضريب تبادل جرم مابين منطقه ذخيره اي و بدنه اصلي جريان در جريان عبوري از سد ها با توجه به مدل تحليلي حاضر به ترتيب برابر با cm/s 4، cm2/s2/4، 10/5- بدست آمد. تطابق منحني هاي غلظت-زمان حاصل از حل تحليلي انجام شده با استفاده از پارامتر هاي جذر ميانگين مربعات خطا و شاخص نش-ساتكليف مورد ارزيابي قرار گرفت و مقادير آن-ها به ترتيب برابر با 0/21 و 0/7 استخراج شد كه حاكي از قابليت مطلوب مدل توسعه پيدا كرده براي فرآيند هاي انتقال و پراكندگي دارد.
چكيده لاتين :
In the present research, it was tried to evaluate the pollution transport in the interconnected reservoirs by deriving a theoretical solution based on the TS model partial differential equations and by conducting an experimental model. The theoretical model has been solved by operation of the Laplace transform to the PDE equations, and a complete evaluation of the model applicability and the parameters’ magnitudes have been fulfilled using experimental data series of two interconnected reservoirs. The created rockfill dams in the laboratory flume have been produced using three different median diameters of the 1.1, 2.3, and 3.6 cm. The other experiment variables were the entrance discharges as 7, 9, 11, and 13.5 l/s and linear source concentration of the 100, 140, and 200 gr/l. The mean values of the velocities, dispersion coefficients, and the logarithm of the mass transfer coefficients between the storage area and the main flow have been determined as 4 cm/s, 2.4 cm2/s, and -10.5 respectively. The corresponding of the experimental breakthrough curves with theoretical ones have been assessed and confirmed using statistical parameters of the RMSE and Nash-Sutcliff, having the values of 0.21 and 0.7, respectively. In the present research, it was tried to evaluate the pollution transport in the interconnected reservoirs by deriving a theoretical solution based on the TS model partial differential equations and by conducting an experimental model. The theoretical model has been solved by operation of the Laplace transform to the PDE equations, and a complete evaluation of the model applicability and the parameters’ magnitudes have been fulfilled using experimental data series of two interconnected reservoirs. The created rockfill dams in the laboratory flume have been produced using three different median diameters of the 1.1, 2.3, and 3.6 cm. The other experiment variables were the entrance discharges as 7, 9, 11, and 13.5 l/s and linear source concentration of the 100, 140, and 200 gr/l. The mean values of the velocities, dispersion coefficients, and the logarithm of the mass transfer coefficients between the storage area and the main flow have been determined as 4 cm/s, 2.4 cm2/s, and -10.5 respectively. The corresponding of the experimental breakthrough curves with theoretical ones have been assessed and confirmed using statistical parameters of the RMSE and Nash-Sutcliff, having the values of 0.21 and 0.7, respectively. In the present research, it was tried to evaluate the pollution transport in the interconnected reservoirs by deriving a theoretical solution based on the TS model partial differential equations and by conducting an experimental model. The theoretical model has been solved by operation of the Laplace transform to the PDE equations, and a complete evaluation of the model applicability and the parameters’ magnitudes have been fulfilled using experimental data series of two interconnected reservoirs. The created rockfill dams in the laboratory flume have been produced using three different median diameters of the 1.1, 2.3, and 3.6 cm. The other experiment variables were the entrance discharges as 7, 9, 11, and 13.5 l/s and linear source concentration of the 100, 140, and 200 gr/l. The mean values of the velocities, dispersion coefficients, and the logarithm of the mass transfer coefficients between the storage area and the main flow have been determined as 4 cm/s, 2.4 cm2/s, and -10.5 respectively. The corresponding of the experimental breakthrough curves with theoretical ones have been assessed and confirmed using statistical parameters of the RMSE and Nash-Sutcliff, having the values of 0.21 and 0.7, respectively. In the present research, it was tried to evaluate the pollution transport in the interconnected reservoirs by deriving a theoretical solution based on the TS model partial differential equations and by conducting an experimental model. The theoretical model has been solved by operation of the Laplace transform to the PDE equations, and a complete evaluation of the model applicability and the parameters’ magnitudes have been fulfilled using experimental data series of two interconnected reservoirs. The created rockfill dams in the laboratory flume have been produced using three different median diameters of the 1.1, 2.3, and 3.6 cm. The other experiment variables were the entrance discharges as 7, 9, 11, and 13.5 l/s and linear source concentration of the 100, 140, and 200 gr/l. The mean values of the velocities, dispersion coefficients, and the logarithm of the mass transfer coefficients between the storage area and the main flow have been determined as 4 cm/s, 2.4 cm2/s, and -10.5 respectively. The corresponding of the experimental breakthrough curves with theoretical ones have been assessed and confirmed using statistical parameters of the RMSE and Nash-Sutcliff, having the values of 0.21 and 0.7, respectively.
سال انتشار :
1398
عنوان نشريه :
هيدروليك
فايل PDF :
7826292
لينک به اين مدرک :
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