Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Open Access Guideline
Open Access Guideline
Postgraduate Thesis Guideline
Postgraduate Thesis Guideline
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
Critical flow velocity in slurry transporting horizontal pipelines
Date
2001-09-01
Author
Kokpinar, MA
Göğüş, Mustafa
Metadata
Show full item record
This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
Item Usage Stats
181
views
0
downloads
Cite This
A new empirical equation is proposed for predicting critical flow velocity in slurry-transporting horizontal pipelines. An analysis of the settling velocity of solid particles, including the effect of solid particle concentration, is under-taken because of this parameter's importance. This study builds on a previous study carried out to consider the settling velocity of a single solid particle in clear-water condition, which is actually different from the real physics of the hydrotransport phenomenon of the solid particles. Two earlier proposed methods are applied to the calculation of the settling velocity of a solid particle, including the effect of solid particle concentration within the suspending fluid. The most appropriate method for slurry transportation among these two methods is discussed and used in the analysis of critical flow velocity. The new proposed equation is based on analysis of data from the experiments as well as data from the earlier studies. A unique feature of the proposed equation is that it can be applied to noncohesive, uniform, and nonuniform coarse solid particles. In a comparison of prediction accuracy with four existing relationships, the proposed equation was found to give significantly better agreements with the observed data. Therefore, it can be stated that the new equation can safely be used by designers in the problems of slurry transportation.
Subject Keywords
Settling velocity
,
Sediment
URI
https://hdl.handle.net/11511/29868
Journal
JOURNAL OF HYDRAULIC ENGINEERING-ASCE
DOI
https://doi.org/10.1061/(asce)0733-9429(2001)127:9(763)
Collections
Graduate School of Natural and Applied Sciences, Article
Suggestions
OpenMETU
Core
Peak ground velocity sensitive deformation demands and a rapid damage assessment approach
Akkar, S; Sucuoğlu, Haluk (2003-05-13)
The effect of peak ground velocity (PGV) on the maximum inelastic deformation demand of simple, non-degrading structural systems is studied. Ground motion data sets are assembled for pre-defined ranges of PGV and they are used to conduct nonlinear response history analysis of single-degree-of-freedom (SDOF) systems. The study is focused on short and intermediate periods of vibration (T) and strength reduction factor (R) is used to define the lateral capacity of the structure. As part of the study, a simple ...
Effect of particle shape on fall velocity of angular particles
Göğüş, Mustafa; Kokpinar, MA (2001-10-01)
In this study, fall velocities of 174 regularly shaped angular particles-namely cylindrical, cubic, wedge-shaped prisms, and box-shaped prisms-made of five different materials were measured in calm water conditions in a cylindrical settling column. Reynolds numbers based on particle fall velocity and characteristic length were varied, in the range from 10(3) to 4.2 x 10(4). A new shape factor and characteristic length were defined from a transformed form of the original particle. Variation of experimentally...
Measurement of the ZZ Production Cross Section and Limits on Anomalous Neutral Triple Gauge Couplings in Proton-Proton Collisions at root s=7 TeV with the ATLAS Detector
Aad, G.; et. al. (2012-01-25)
A measurement of the ZZ production cross section in proton-proton collisions at root s = 7 TeV using data corresponding to an integrated luminosity of 1.02 fb(-1) recorded by the ATLAS experiment at the LHC is presented. Twelve events containing two Z boson candidates decaying to electrons and/or muons are observed, with an expected background of 0.3 +/- 0.3(stat)(-0.3)(+0.4)(syst) events. The cross section measured in a phase-space region with good detector acceptance and for dilepton masses within the ran...
ELECTRON POLARIZATION IN A QUANTUM-WELL WITH UNIFORM ELECTRIC-FIELD
ILAIWI, KF; Tomak, Mehmet (1991-06-01)
The polarization of a quantum electron confined in a one-dimensional potential well in the presence of a uniform electric field is calculated numerically. We find that the negative polarization of the first excited state in previous calculations is solely due to the neglect of the electric field outside the quantum well.
High-frequency loss calculation in a smooth rotor induction motor using FEM
Ertan, Hulusi Bülent; Leblebicioğlu, Mehmet Kemal (2007-09-01)
In this paper, a new approach for the calculation of high-frequency losses in induction motors is presented. The input to the motors is assumed to be supplied from a sinusoidal voltage source. The method is based on the two-dimensional (2-D)). field solutions of the magnetic circuit, obtained by using a nonlinear "harmonic" solution. Hence, the solution time is very short. From the "harmonic" solution, the air-gap field distribution as well as the fundamental frequency eddy current losses are determined. Th...
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
M. Kokpinar and M. Göğüş, “Critical flow velocity in slurry transporting horizontal pipelines,”
JOURNAL OF HYDRAULIC ENGINEERING-ASCE
, pp. 763–771, 2001, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/29868.