Modeling discharge coefficient of radial gates under submerged conditions using kernel-based approaches
Author(s):
Article Type:
Research/Original Article (دارای رتبه معتبر)
Abstract:
Prediction of flow discharge coefficient of gates is one of the essential issues in water engineering sciences. In recent years, various semi-empirical equations have been developed in order to predict the discharge coefficient of radial gates that the application of these formulas under submerged flow conditions suffered from large errors. The aim of present study is to apply robust Gaussian Process Regression (GPR) and Support Vector Machine (SVM) to predict discharge coefficient of radial gates under submerged flow conditions and compare the obtained results with well-known semi-empirical approaches. For this purpose, an extensive experimental dataset comprises 2136 data points were used to feed the utilized methods. Different combinations of dimensionless parameters were prepared and the performance of aforementioned methods were assessed. The obtained results showed that GPR method with input parameters of y0-yt/w and yt/w yields a correlation coefficient (R) of 0.983, a Nash- Sutcliffe efficiency (NSE) of 0.967 and root mean squared error (RMSE) of 0.027 and indicated superior performance compared with employed SVM and other semi-empirical approaches.
Keywords:
Language:
Persian
Published:
Iranian Journal of Irrigation & Drainage, Volume:15 Issue: 1, 2021
Pages:
109 to 120
magiran.com/p2268255
دانلود و مطالعه متن این مقاله با یکی از روشهای زیر امکان پذیر است:
اشتراک شخصی
با عضویت و پرداخت آنلاین حق اشتراک یکساله به مبلغ 1,390,000ريال میتوانید 70 عنوان مطلب دانلود کنید!
اشتراک سازمانی
به کتابخانه دانشگاه یا محل کار خود پیشنهاد کنید تا اشتراک سازمانی این پایگاه را برای دسترسی نامحدود همه کاربران به متن مطالب تهیه نمایند!
توجه!
- حق عضویت دریافتی صرف حمایت از نشریات عضو و نگهداری، تکمیل و توسعه مگیران میشود.
- پرداخت حق اشتراک و دانلود مقالات اجازه بازنشر آن در سایر رسانههای چاپی و دیجیتال را به کاربر نمیدهد.
In order to view content subscription is required
Personal subscription
Subscribe magiran.com for 70 € euros via PayPal and download 70 articles during a year.
Organization subscription
Please contact us to subscribe your university or library for unlimited access!