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نمایش تعداد 1-10 از 45
Scour Hole Influence on Turbulent Flow Field around Complex Bridge Piers
Experimental results of detailed flow measurements using an Acoustic-Doppler Velocimeter (ADV) around a complex bridge pier (CBP) are presented. The pier consists of a column, a pile cap (PC) and a 2×4 pile group. The ...
Local Scour Depth Estimation around Complex Bridge Pier
Despite of numerous empirical formulas have been presented to estimate equilibrium scour depth around complex bridge piers, there may no general formula that satisfies all conditions. It may happened because, existing ...
بررسی روشهای ارزیابی آسیب پذیری آبخوان نسبت به نیترات
منابع آب زیرزمینی نقش مهمی در تامین منابع آب مورد نیاز ایران دارد. ....
بررسی آزمایشگاهی آبشستگی خاک حول پایه های مرکب پل
یکی از دلایل اصلی فروپاشی پلها آبشستگی بستر پایه پل می باشد. مکانیسم آبشستگی اطراف پایه های مرکب بسیار پیچیده است. در این تحقیق از مدل فیزیکی برای مطالعه آبشستگی اطراف پایه های مرکب در شرایط آب زلال استفاده شده است.
Discussion of “Neuro-fuzzy GMDH systems based evolutionary algorithms to predict scour pile groups in clear water conditions” by M. Najafzadeh
The author utilized neuro-fuzzy based group method of data handling (NF-GMDH) to predict the local
scour depth around pile groups under clear-water conditions. They collected the datasets from literature.
To ...
Vulnerability assessment of urban groundwater resources to Nitrate: The case study of Mashhad, Iran.
Groundwater vulnerability assessment of urban areas is a challenging task in the fast trend of urbanization around the globe. This study introduces a new approach for modifying well-known parameters of common vulnerability ...
Numerical simulations of turbulent flow around side -by-side circular piles with different spacing ratios
Numerical simulations of the turbulent flow around single and side(by(side piles at different spacing ratios (centre to centre distance to the pile diameter) with flow Reynolds number of 10^5 on the fixed flat(bed are ...