نتایج جستجو برای: mike21
تعداد نتایج: 120 فیلتر نتایج به سال:
Effective risk assessment can reduce the economic losses and physical damage caused by marine dynamic processes, such as storm surges. Most assessments of disasters are based on regional parameters discrete hazard grades. Targeted, multilevel, multiangle urgently needed. This study focuses specific types affected infrastructure. We established a sensitivity matrix considering effects different ...
The environmental quality of Torre a Mare port (Italy) was assessed evaluating on one side, the chemical concentration of nine metals and metalloids within bottom sediments and on the other one, by exploring the impact of hydrodynamic conditions in contaminant's transport within the most polluted basins. The investigated port was selected as case study because it resulted much more polluted tha...
Abstract Background Lake-terrestrial ecotone is a transition zone between terrestrial and aquatic ecosystems. Linking land lake, it thus highly sensitive vulnerable to disturbances. It includes three parts, namely, radiant belt toward land, shoreline lake. Extending from multi-year average low water level line open water, lake key part of lake-terrestrial ecotone. However, the delimitation meth...
In coastal areas, hydrodynamic factors make changes in shorelines geomorphology. This can affect coastal facilities and cause hazards to human societies in the areas. This study has investigated the influence of wave and tide properties on Khamir Port, Hormoz Strait in coast of Persian Gulf. The purpose of the study is to make a mathematical regional and local modeling of water level fluctuatio...
The Urmia Lake has distinctive nature, hydrodynamic and environmental properties that single out that from the other lakes in the world. Construction of Shahid Kalantari causeway can cause significant effects on natural regime of the lake. It may affect on environmental biology, hydraulic, water circulation regime and … . This paper deals with hydrodynamics of the lake. Two-dimensional s...
در این مقاله به بررسی عوامل مؤثر در تغییرات میدان مغناطیسی ناشی از جریان در تنگه هرمز پرداختهشده است. در ابتدا مشخصه جریان در منطقه به وسیله مدل عددی MIKE21 شبیهسازی شد و سپس با استفاده از مشخصههای جریان حاصل از خروجی مدل و روابط محاسباتی، میدان مغناطیسی در منطقه محاسبه شده و نوسانات آن مورد بررسی قرارگرفته است. نتایج حاصل از این بررسی در چهار نقطه با عمقهای متفاوت نشان میدهد که حداکثر ...
DHI-Mike Software is one of best softwares describing water wave diffraction in onshore/offshore concepts. Diffraction happens due to obstacles along wave direction and has an important role in designing structures. The scope of this study is to show the relation between Porosity Coefficient and its effects on Diffraction Coefficient (Cd) by means of a suitable and verified numerical model. Por...
In this study, the capabilities of WAWEWATCH-III and MIKE21-SW for predicting the characteristics ofwind-generated waves in Hormuz Strait are evaluated. The numerical models have been set up using Input data including GFS wind with 5° spatial resolution and 6 hours time intervals, along with the ETOPO1 bathymetry data with 2 arc-minute spatial resolutions. The results of the two model simulatio...
پیش بینی رفتار هیدرولیکی رودخانه در مقابل سیلاب های احتمالی جهت کاهش خسارات وارده به مناطق شهری، تاسیسات در حال ساخت، مزارع و سایر کاربری ها در اطراف رودخانه از اهمیت ویژه ای برخوردار می باشد. علاوه بر این، پیش بینی رفتار رودخانه ها در قوس نیز اهمیت زیادی دارد چرا که رودخانه ها در طبیعت اغلب دارای شکل قوسی بوده و به ندرت به شکل مستقیم دیده می شوند. هدف از این تحقیق، استفاده از مدل عددی سه بعدی ...
Construction of ports and coastal structures actually affects the coastal flow pattern and results in the changing of the sedimentation pattern. The research carried out in this paper, aims to simulate sedimentation process following the construction of the Bandar-e Anzali New Breakwaters at the site, using Iranian developed PMO hydrodynamics and well known MIKE21 modeling package developed by ...
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