Effect of wall shear stress distribution on manning coefficient of smooth open rectangular channel flows

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dc.contributor.authorAhmet Bilgil
dc.date.accessioned2019-08-01T13:38:39Z
dc.date.available2019-08-01T13:38:39Z
dc.date.issued2003
dc.departmentNiğde ÖHÜ
dc.description.abstractThe determination of velocity distribution in open channel flows is crucial in many critical engineering problems such as channel design, calculation of energy losses and sedimentation. In this study, velocity distribution is experimentally investigated in a smooth rectangular open channel. Wall shear stresses are calculated using measured local velocities. Assuming logarithmic velocity distribution along perpendiculars to a wetted perimeter, dimensionless wall shear stresses K(I) = $\tau_{\omega} \overline {\tau}_{\omega}$ and A and B constants unique to the cross section in the Prandtl equation were calculated. A correlation for friction coefficient in an open channel is developed using measured wall shear stress distribution. An improved relation for the Manning coefficient on smooth rectangular channels is proposed.
dc.description.abstractThe determination of velocity distribution in open channel flows is crucial in many critical engineering problems such as channel design, calculation of energy losses and sedimentation. In this study, velocity distribution is experimentally investigated in a smooth rectangular open channel. Wall shear stresses are calculated using measured local velocities. Assuming logarithmic velocity distribution along perpendiculars to a wetted perimeter, dimensionless wall shear stresses K(I) = $\tau_{\omega} \overline {\tau}_{\omega}$ and A and B constants unique to the cross section in the Prandtl equation were calculated. A correlation for friction coefficient in an open channel is developed using measured wall shear stress distribution. An improved relation for the Manning coefficient on smooth rectangular channels is proposed.
dc.identifier.endpage313
dc.identifier.issn1300-0160
dc.identifier.issue5
dc.identifier.scopus2-s2.0-0141726507
dc.identifier.scopusqualityN/A
dc.identifier.startpage305
dc.identifier.trdizinid31640
dc.identifier.urihttps://app.trdizin.gov.tr/makale/TXpFMk5EQXc=
dc.identifier.urihttps://hdl.handle.net/11480/2082
dc.identifier.volume27
dc.indekslendigikaynakScopus
dc.indekslendigikaynakTR-Dizin
dc.institutionauthorAhmet Bilgil
dc.language.isoen
dc.relation.ispartofTurkish Journal of Engineering and Environmental Sciences
dc.relation.publicationcategoryDiğer
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectÇevre Mühendisliği
dc.titleEffect of wall shear stress distribution on manning coefficient of smooth open rectangular channel flows
dc.typeOther

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