Computation of discharge for simultaneous flow over weirs and below gates (H-weirs)

Date

2013-03-01

Author

Altan Sakarya, Ayşe Burcu

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

95
views

0
downloads

Simultaneous flow over weirs and below gates for free flow condition is experimentally investigated. Combination of a sharp-crested rectangular weir and rectangular gate is considered as a flow measurement structure which is named as H-weirs. H-weirs are defined by the width of the weir and gate openings, the height of the gate opening and the vertical distance between bottom of the weir and top of the gate. Laboratory experiments are conducted by measuring the discharge and the depth of water at upstream for different H-weirs. The present study aims to determine the discharge for a given H-weir simply by reading the depth of water at upstream of the combined structure. The compatibility of various formulations of the discharge-depth of water relationship is investigated by using the collected data and two new formulations are suggested based on the analysis of these data. After obtaining and comparing percentage errors of each equation, it is concluded that the new proposed equations can be used to accurately predict the discharge through H-weirs within the given ranges of the experimental study.

Subject Keywords

Flow Measurement, Rectangular Weirs, Rectangular Gates, H-Weirs, Open Channel Flow

URI

https://hdl.handle.net/11511/36343

Journal

FLOW MEASUREMENT AND INSTRUMENTATION

DOI

https://doi.org/10.1016/j.flowmeasinst.2012.09.007

Collections

Department of Civil Engineering, Article

Suggestions

OpenMETU
Core

Ensemble Modeling of Hydrologic and Hydraulic Processes at One Shot: Application to Kinematic Open-Channel Flow under Uncertain Channel Properties and Uncertain Lateral Flow Conditions by the Stochastic Method of Characteristics Ercan, Ali; Kavvas, M. L. (2012-03-01) A stochastic kinematic wave model for open channel flow is developed under uncertain channel properties and uncertain lateral flow conditions. Applying a known methodology, the Fokker-Planck equation (FPE) of the kinematic open-channel flow process under uncertain channel properties and uncertain lateral flow conditions is derived using the method of characteristics. Because every stochastic partial differential equation has a one-to-one relationship with a nonlocal Lagrangian-Eulerian Fokker-Planck equatio...
Influence wave mode computations of multi-passage cascade flows Tuncer, İsmail Hakkı (2000-01-01) Copyright © 2000 by ASME.A Navier-Stokes solution method with overset grids is employed to compute the Influence Wave Modes of a compressor cascade in transonic flow conditions. The computed predictions are compared against the experimental data and the predictions based on Traveling Wave Mode computations performed using a different Navier-Stokes solver. In the present method, a five-passage flow domain is discretized with O-type subgrids around each blade and a rectangular background subgrid, A simple, ro...
Wall functions for boundary roughness prediction in uniform channel flows Aydın, İsmail (null; 2017-08-18) Boundary roughness is an important hydraulic parameter in describing dynamics of free surface flows. There is no direct method to estimate the possible boundary resistance in natural environment. Available empirical formulations are based on the particle
Flow behavior and regime transition in a high-density circulating fluidized bed riser Kim, SW; Külah, Görkem; Bi, H; Lim, CJ; Grace, JR (2004-09-01) Flow behavior and flow regime transitions were determined in a circulating fluidized bed riser (0.203 m i.d. x 5.9 m high) of FCC particles (d(p) = 70 pm, rho(p) = 1700 kg/m(3)). A momentum probe was used to measure radial profiles of solids momentum flux at several heights and to distinguish between local net upward and downward flow. In the experimental range covered (U-g = 5-8 m/s; G(s) = 22-345 kg/m(2) s), the fast fluidization flow regime was observed to coexist with dense suspension upflow (DSU). At a...
Parameter study on tracer flow test Aydın, Hakkı; Akın, Serhat (2019-02-13) Periodic measurement of flow rate in production wells is essential to monitor performance of geothermal wells and reservoir. Tracerdilution method has been introduced as a reliable, cheap and environment friendly technique to measure mass flow rate and enthalpy intwo phase geothermal systems. In this study, Sodium Fluorescein is used to measure liquid phase mass flow rate in a two phase productionline and in a single phase liquid injection line. The study includes the effect of flow regime and flowrate on t...

Citation Formats

A. B. Altan Sakarya, “Computation of discharge for simultaneous flow over weirs and below gates (H-weirs),” FLOW MEASUREMENT AND INSTRUMENTATION, pp. 32–38, 2013, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/36343.