مدلسازی عددی فشار وارد بر موج شکن سکویی مرکب و مقایسه آن با موج شکن کیسونی افقی با درنظرگیری اثر محیط متخلخل..

نوع مقاله : پژوهشی اصیل (کامل)

نویسندگان
مرتضی مرعشیان 1
مهدی عجمی 1
احمد رضایی مزیک 2
1 گروه مهندسی آب و محیط زیست، دانشکده مهندسی عمران دانشگاه صنعتی شاهرود
2 گروه سازه‌های دریایی، دانشکده عمران و محیط زیست دانشگاه تربیت مدرس
چکیده
توزیع فشار حاصل از اندرکنش موج و سازه­ بر موج­ شکن ­های کیسونی افقی، یکی از پارامترهای تاثیرگذار بر طراحی این موج ­شکن می­ باشد. با توجه به تاثیر قابل توجه این پارامتر، استفاده از موج­ شکن سکویی مرکب جهت بهبود عملکرد و کاهش نیروهای وارد بر سازه مورد بررسی قرار گرفته است. در این مطالعه به مدلسازی عددی فشار وارد بر موج ­شکن سکویی مرکب و مقایسه آن با موج­ شکن کیسونی افقی به­وسیله مدل عددی FLOW-3D پرداخته شده است. موج ­شکن سکویی مرکب نسبت به موج ­شکن کیسونی افقی در P1 (حداکثر فشار وارد بر کیسون در تراز آب) مقدار فشار بدست آمده کاهش 52/02 %، در P2 (حداکثر فشار در تاج کیسون) مقدار فشار بدست آمده کاهش 63/07 و در P3 (حداکثر فشار در پنجه کیسون) کاهش 76/09% و در Pu ( فشار بالابرنده زیر کیسون) این مقدار فشار کاهش 53/92% را داشته است.

کلیدواژه‌ها

موضوعات

عنوان مقاله English

Numerical Modeling of Pressure on Composite Berm Breakwater and its Comparison with Horizontally Caisson Breakwater Considering the Effect of Porous Medium

نویسندگان English

morteza marashian 1
mahdi adjami 1
Ahmad Rezaee mazyak 2
1 Water and Environmental Engineering Department, Faculty of Civil Engineering, Shahrood University of Technology
2 Faculty of Civil and Environmental Engineering, TMU
چکیده English

The pressure distribution resulting from the wave interaction in the horizontally caisson breakwater is one of the important parameters in the design of this breakwater. Due to the significant impact of this parameter, the use of composite berm breakwater has been investigated to improve the performance and reduce the forces applied to the structure .In this study, numerical modeling of pressure on composite berm breakwater and its comparison with horizontally caisson breakwater has been investigated by numerical model of FLOW-3D. In composite berm breakwater, compared with the horizontally caisson breakwater at P1 (the maximum pressure applied to the caisson at the surface of the water), the amount of achieved pressure showed the reduction of 52.09% and at P2 (maximum pressure in the caisson crest), the achieved pressure showed 63/07 % decrease. Also in P3 (maximum pressure in caisson toe), the pressure was reduced by 76.09%, and in Pu (uplift pressure under caisson), this value indicates a decrease of 53.92%.

کلیدواژه‌ها English

Composite Berm Breakwater
Pressure
Berm Breakwater
Horizontally Caisson Breakwater
Porous Medium
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مهندسی عمران مدرس
دوره 20، شماره 3
مهر و آبان 1399
صفحه 79-92