Numerical modeling of surge wave in downstreams of the waterworks

9th International Multidisciplinary Scientific and Research Conference "Modern Issues in Science and Technology" Workshop "Advanced Technologies in Aerospace, Mechanical and Automation Engineering"

自然科学;工业技术

Ivanenko, Yu.G.^1 ; Tkachev, A.A.^1 ; Gurin, K.G.^1 ; Yu Ivanenko, D.^1

Novocherkassk Engineering-Ameliorative Institute, Named after A. K. Kortunov of Don State Agrarian University, 111 Pushkiskaya street, Novocherkassk, Rostov Region

346428, Russia^1

关键词: Direct measurement;    Discharge measurements;    Hydraulic calculations;    Hydraulic parameters;    Measuring instruments;    Partial derivatives;    Water distributions;    Water measurements;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/450/6/062014/pdf
DOI  :  10.1088/1757-899X/450/6/062014

来源: IOP

【 摘 要 】

Basic requirements for water measuring and water accounting devices developed to fulfil static control of water distribution have not changed virtually in recent decades. It is due primarily to the use of water accounting and measuring instruments developed and used in conditions of steady uniform water flow when unique dependence on depth and water discharge on the rise and decline of the waterline levels is observed. Under operation of watercourses in the unsteady water flow regimen, the existing means of water measurement are not applicable. Simultaneous direct measurement of hydraulic parameters in controlled cross sections of waterways is complicated even under steady water flow regimen. Nowadays there is the lack of data to predict extreme values of discharges and water depth in downstreams of the waterworks due to the absence of tested and feasible methods of water depth and discharge measurement in calculated cross sections of waterways. With the application of the complete integral theory, a hydraulic calculation of the changes in the flow rate and the depth of flow in fixed sections of the downstream of the waterworks was performed. It is based on the analytical method of linearized system solution of one-dimensional differential equations in partial derivatives of Saint-Venant hyperbolic type.