Testing the outflow theory of Malcherek by slit weir data

2018-03-01
FERRO, Vito
Aydın, İsmail
In this paper the flow-process of a slit weir is analyzed by the outflow theory of Malcherek. Average flow velocity over the slit weir is expressed in terms of head over weir and the momentum correction coefficient. The theoretically deduced stage-discharge formula was then calibrated using experimental data obtained for a ratio between the weir and the channel width ranging from 0.05 to 0.25. The deduced stage-discharge relationship allows to measure discharge values characterized by errors which are, for 91% of the measured values, less than or equal to 5%.
FLOW MEASUREMENT AND INSTRUMENTATION

Suggestions

Investigation of inviscid shear layer by linear stability theories
Topbaş, Ahmet Emre; Özgen, Serkan; Department of Aerospace Engineering (2018)
ThisIn this thesis, spatial and temporal instabilities of the inviscid shear layer flows are investigated using the linear stability theory. Utilizing the small and wavy disturbances, Rayleigh equation was derived from the Helmholtz vorticity equation. For the hyperbolic-tangent velocity profile, the Rayleigh equation was solved by using space and time amplification approaches by an in-house Fortran code involving RK4 and simplex method algorithm. Eigenvalues of various disturbance frequencies were calculat...
New Theoretical solution of stage-discharge relationship for slit weirs
FERRO, Vito; Aydın, İsmail (American Society of Civil Engineers (ASCE), 2018-03-01)
In this paper, the flow-process of a slit weir was analyzed on the basis of a theorem of dimensional analysis and incomplete self-similarity theory. The theoretically deduced stage-discharge formula then was calibrated using experimental data obtained for a ratio between the weir and the channel width, ranging from 0.05 to 0.25. The deduced stage-discharge relationship allowed measuring discharge values characterized by errors that, for 98% of the measured values, were less than or equal to ±5%. The perform...
Investigation of unsteady wake-separated boundary layer interaction using particle-image-velocimetry
Uzol, Oğuz; Cranstone, Alex; Hodson, Howard (2007-05-17)
The current paper presents an experimental investigation of the interaction between unsteady wakes and the separated boundary layer on the suction side of an ultra-high-lift low-pressure turbine airfoil. Two-dimensional Particle Image Velocimetry (PIV) measurements of the unsteady boundary layer over the T106C LP turbine profile were performed in a low speed linear cascade facility, at selected phases of passing wakes. The wakes are created by moving cylindrical bars across the inlet of the test section. V...
On evolving deformation microstructures in non-convex partially damaged solids
Gürses, Ercan (2011-06-01)
The paper outlines a relaxation method based on a particular isotropic microstructure evolution and applies it to the model problem of rate independent, partially damaged solids. The method uses an incremental variational formulation for standard dissipative materials. In an incremental setting at finite time steps, the formulation defines a quasi-hyperelastic stress potential. The existence of this potential allows a typical incremental boundary value problem of damage mechanics to be expressed in terms of...
Problems of Massive Gravity
Boybeyi, Töre Deniz; Tekin, Bayram; Department of Physics (2021-8-5)
In this thesis, the general properties of massive gravitation theories are outlined. Particular attention is given to the van Dam-Veltman-Zakharov discontinuity which arises in the massless limit of massive theories. Also, the observational, holographic, and thermodynamic properties of these theories are mentioned.
Citation Formats
V. FERRO and İ. Aydın, “Testing the outflow theory of Malcherek by slit weir data,” FLOW MEASUREMENT AND INSTRUMENTATION, pp. 114–117, 2018, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/46213.