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Water Velocity Measurements in Open Channels Using Volumetric Current Meter (VCM) | ||
Journal of Water Sciences Research | ||
مقاله 2، دوره 7، شماره 1 - شماره پیاپی 9، بهمن 2015، صفحه 13-19 اصل مقاله (514.83 K) | ||
نوع مقاله: Original Article | ||
نویسندگان | ||
Seyyed Ali Akbar Moosavi1؛ Mohammad Abdolahipour-Haghighi* 2؛ Gholamreza Mohammadi2 | ||
1Department of Soil Science, Science and Research Branch, Islamic Azad University, Shiraz, Iran | ||
2Department of Water engineering, Shiraz University, Shiraz, Iran | ||
چکیده | ||
An innovative Volumetric Current Meter (VCM) was designed in order to allow quick velocity measurements in open channels. At first, the coefficient of velocity (Cv) of the device was determined through calibration under different water velocities in the laboratory. The measurement performance was verified by measurements performed in similar flows in irrigation channels using an ordinary current meter. The obtained results showed that the new device can be used to measure the discharge with an acceptable precision (RMSE and MAD equal to 5.353% and 0.027, respectively compared to a digital flow meter). It was shown that velocity computation by using this device will result in a lower precision in higher water velocities. | ||
کلیدواژهها | ||
Volumetric Current Meter (VCM)؛ velocity measurement؛ open channel؛ current meter | ||
آمار تعداد مشاهده مقاله: 247 تعداد دریافت فایل اصل مقاله: 391 |