نتایج جستجو برای: mike21
تعداد نتایج: 120 فیلتر نتایج به سال:
Weirs are often constructed on mountainous rivers because of their low construction costs and ability to provide irrigation facilitate landscaping, yet there is little research how fish habitat quality in responds weir distribution. This study categorized the distribution characteristics weirs typical reaches according sinuosity calculated corresponding suitability index (HSI) weighted usable a...
Many issues with water quality and ecology are caused by the Xinghai Lake’s enormous catchment, significant evaporation rates, one additional supply. To quantitatively study displacement characteristics, a two-dimensional hydrodynamic-tracer coupling model based on MIKE21 was developed. The findings indicate that: (1) replacement cycle exhibits spatial heterogeneity, general characteristic of f...
NCMRWF (National Centre for Medium Range Weather Forecast) winds assimilated with MSMR (Multi-channel Scanning Microwave Radiometer) winds are used as input to MIKE21 Offshore Spectral Wave model (OSW) which takes into account wind induced wave growth, non-linear wave-wave interaction, wave breaking, bottom friction and wave refraction. The model domain covers the north Indian Ocean, bounded by...
There is an increasing demand for knowledge about hydrodynamic, morphological and water quality processes within the estuarine waterways of the Gold Coast. This study describes the development of a suite of hydrodynamic, sediment transport and water quality models for the Gold Coast tidal waterways. The modeling framework described was developed to provide a strategic understanding of waterway ...
The development planning of a tidally-influenced fluvial zone poses complex interaction between river discharge and its effect on the tidal patterns, especially in dense population high economic activity like Palembang located South Sumatra Indonesia. Previous studies numerical modelling this area have focused flood; however, hydrodynamic described is not more detail. present study aims to bett...
هدف از این پژوهش ارزیابی دینامیک امواج، جریان و روند تغییرات مورفولوژی و خط ساحلی دلتای سفیدرود است. در بخش اول با استفاده از مدل MIKE21 مشخصات موج، جریان و انتقال رسوب شبیه سازی شد و در بخش دوم با پردازش تصاویر ماهوارهای LandSat، نرخ تغییرات خطوط ساحلی دلتا در دههی اخیر بهدست آمد. نتایج این تحقیق نشان داد که مدل قابلیت ارائه الگوی واقعی امواج، جریانها (با شاخص nRMSE 07/12 تا 02/17 درصد) و...
Cohesive sediments have large specific surfaces which enable them to absorb other cohesive sediments and polar particles such as mud and sodium. Floccules form by joining these particles. The behavior of cohesive sediments in aquatic environments is completely different from that of granular sediments. Under certain value of shear stress, the structure formed from cohesive sediments is divided ...
Abstract Pulang Pisau Steam Power Plant (PLTU) is one of the plants that used to fulfill electricity needs people in Central Kalimantan Province. By using coal as a source steam production, PLTU has capacity up 2 × 60 MW. Such large population growth cannot be avoided and it therefore denied deemed require additional production capacity. One alternative can given increase amount fuel capacity, ...
پیشبینی امواج در پنج دهه اخیر با به کارگیری مدلهای ریاضی مبتنی بر معادله پایستگی انرژی، شاهد پیشرفتهای چشمگیری بوده است. این مدلها نیز به نوبه خود دستخوش تغییرات بسیاری شدهاند که پیشرفتهترین آنها مدلهای طیفی نسل سوم نظیر Mike21-SW (توسعه یافته از سوی موسسه هیدرولیک دانمارکDanish Hydraulic Institue ) هستند. این مدلها با فرمولبندی مبانی فیزیکی تولید، انتشار امواج ناشی از باد و فرا...
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