Effect of the downstream transition region of a flow measurement flume of rectangular compound cross section on flow properties

Date

2013-10-01

Author

Göğüş, Mustafa
Atalay, Ahmet E.

Metadata

Show full item record

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

Item Usage Stats

208
views

0
downloads

In this study, the effect of the downstream expansion region of a flow measurement flume of rectangular compound cross section on some of the flow properties; such as the discharge coefficient, C-d, the approach velocity coefficient, C and the modular limit, ML were investigated. For this reason, extensive laboratory tests were conducted with nine models of different downstream transitions. The aforementioned hydraulic quantities were then related with the relevant parameters to obtain sets of curves from which one could decide which kind of downstream transition type would produce the highest modular limit. It was found that model type A yielded the highest modular limit with a downstream slope of about 1/7.

Subject Keywords

Flow measurement flume, Downstream transition, Rectangular compound cross section, Modular limit

URI

https://hdl.handle.net/11511/31298

Journal

FLOW MEASUREMENT AND INSTRUMENTATION

DOI

https://doi.org/10.1016/j.flowmeasinst.2013.05.006

Collections

Graduate School of Natural and Applied Sciences, Article

Suggestions

OpenMETU
Core

Effect of Flow Rate Controllers and their Opening Levels on Liquid Steel Flow in Continuous Casting Mold Gursoy, Kadir Ali; Yavuz, Mehmet Metin (2016-01-01) The present study investigates the mold flow structure at constant throughput condition for different slide-gate and stopper rod openings by utilizing computational fluid dynamic (CFD) modeling. Detailed validation of the CFD models are conducted using available experimental data and the performances of three different turbulence models, standard k-epsilon, realizable k-epsilon and k-omega SST are compared. The constant throughput casting operations for different slide-gate and stopper rod controller openin...
Effect of roughness on flow measurements in sloping rectangular channels with free overfall Fırat, Can Ersen; Tiğrek, Şahnaz; Department of Civil Engineering (2004) The characteristics of the subcritical, critical and supercritical flows at the rectangular free overfall were studied experimentally to obtain a relation between the brink depth and the flow rate. A series of experiments were conducted in a tilting flume with wide range of flow rate and two bed roughness in order to find the relationship between the brink depth, normal depth, channel bed slope and bed roughnesses. An equation was proposed to calculate the flow rate if only the brink depth, roughness, and c...
Effect of boundary conditions on magnetohydrodynamics duct flow Bozkaya, Canan (2017-12-01) The magnetohydrodynamic flow of an incompressible, viscous and electrically conducting fluid is investigated numerically in a channel of either rectangular or semi-infinite cross-section with several types of boundary conditions involving walls of variable conductivity in the presence of hydrodynamic slip. The flow is fully developed and driven by a constant pressure gradient in the axial direction under a uniform external inclined magnetic field. The governing differential equations coupled in velocity and...
Effect of spur dike length on the horseshoe vortex system and the bed shear stress distribution Köken, Mete; Göğüş, Mustafa (2015-03-04) Turbulent flow structures forming around isolated spur dikes in a horizontal channel are investigated in this study. In the analysis detached eddy simulation is used under fully turbulent incoming flow conditions at a channel Reynolds number of 45,000. Changes in the structure of the horseshoe vortex system, bed shear stress and pressure standard deviation on the bed are investigated for three different spur dike lengths. In all of the cases the main horseshoe vortex undergoes bimodal oscillations, which le...
EFFECT OF SURFACE ROUGHNESS IN PARALLEL-PLATE MICROCHANNELS ON HEAT TRANSFER Turgay, M. B.; Güvenç Yazıcıoğlu, Almıla (Informa UK Limited, 2009-01-01) In this study, the effect of surface roughness on convective heat transfer in two-dimensional parallel plate microchannels is analyzed numerically for steady-state, single-phase, developing, and laminar air flow in the slip flow regime. Slip velocity and temperature jump at wall boundaries are imposed to observe the rarefaction effect. The effect of triangular roughness elements on Nusselt number are compared to cases with smooth surfaces. The results indicate that increasing surface roughness reduces heat ...

Citation Formats

M. Göğüş and A. E. Atalay, “Effect of the downstream transition region of a flow measurement flume of rectangular compound cross section on flow properties,” FLOW MEASUREMENT AND INSTRUMENTATION, pp. 88–95, 2013, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/31298.