THE ITERATIVE APPROACH TO DETERMINING THE STAGE-DISCHARGE RELATIONSHIP OF FLUMES

Ярослава Володимирівна Волинська

Abstract


Increasing of the accuracy of measuring of volumetric flow and volume on hydroeconomic and irrigation systems is urgent today. It can be implemented by further development of the theoretical basis for determining the flow using flumes, given the actual conditions of operation. Analyzed the generalized algorithm for calculating discharge characteristics of flumes with different spatial configurations, based on the theory of critical depth. Clarifying of discharge and velocity coefficients, which functionally depend on the gauge in the approach part of flume and determined by successive iterative operations, was made. The results of clarifying stage-discharge relationship of Venturi-flume is given. The comparison and analysis of the discharge characteristics standardized Venturi-flume, obtained using a generalized flow depending on the head, and iterative method for clarified discharge and velocity coefficients, is conducted.

Keywords


volume; volumetric flow; flume; stage-discharge relationship; open channel; measurement

References


Pro zatverdžennja Porjadku vedennja deržavnoho obliku vodokorystuvannja, nakaz Minpryrody Ukrajiny vid 16.03.2015. No. 78. Available at: http://zakon5.rada.gov.ua/laws/show/z0382-15.

Slobodjan, Je., O. Kovalenko, V. Rozhon, S. Xorjev (2010), Posibnyk z vedennja vodoobliku na objektax vodohospodarsʹko-melioratyvnoho kompleksu [Manual maintenance of water metering facilities on Water Management and reclamation complex], Ukrvodservis, Kyjiv, Ukraine.

Volynska, Ja.V. (2016), “Metody ta texnični zasoby vymirjuvannja vytraty ridyny u vidkrytyx kanalax”, Tezy dop., VIII mižnarod. nauk.-texn. konf. Informatsiyno-komp’yuterni Tekhnolohiyi 2016, Žytomyr, Ukraine.

Trofimov, V.V. (2011), [Custody transfer of wastewater in free-flow channels], Informatizacija i Sistemy Upravlenija v Promyshlennosti, no. 5(35), pp. 25–32.

Dabrowski, W. and Polak, U. (2012), “Improvements in Flow Rate Measurements by Flume”, Journal of Hydraulic Engineering, no. 138(8), pp.757-763.

Douglas, M. (2013), Grant ISCO open channel flow measurement handbook, Lincoln, NE: Teledyne Isco.

ISO 4359:2013. Flow measurement structures – Rectangular, trapezoidal and U-shaped flumes, Geneva, Switzerland: International Organization for Standardization.

ISO 748:2007. Hydrometry – Measurement of liquid flow in open channels using current-meters or floats, Geneva, Switzerland: International Organization for Standardization.

Tang, X. and Knight, D. (2009), “Analytical models for velocity distributions in open channel flows”, Journal of Hydraulic Research, no. 47(4), pp. 418-428.

Rashod zhidkosti v beznapornyh kanalah sistem vodosnabzhenija i kanalizacii, Metodika vypolnenija izmerenij pri pomoshhi standartnyh vodoslivov i lotkov, MI 2406-97 [Fluid flow in free-flow channels, water supply and sewerage systems. Methods of measurement using standard weirs and flumes], VNIIMS, 1997.05.15, Moscow, Russian.


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DOI: http://dx.doi.org/10.20535/2305-9001.2016.78.81681

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