dc.contributor.authorNguyen, Ba Tuyen
dc.identifier.citationNguyen, B. T. (2014). Experimental study of shallow flows over permeable rough bed. Doctoral thesis, Nanyang Technological University, Singapore.
dc.description.abstractThis study focused on the hydraulic resistance, velocity distribution and turbulence structure of shallow open channel flows over permeable bed comprises of large-scale roughness, with remarkable insights on the effect of bed permeability and roughness submergence. It first presented a new and simple calculation for flow resistance coefficient and mean velocity, which showed a better performance compared to those currently available in literature, particularly for flows with the roughness submergence smaller than five. The study also proposed a useful approach, using the plane mixing layer analogy, to improve the scaling of mean velocity profiles in the outer region of the flows. To justify the newly proposed length and velocity scale, an eddy viscosity model was employed together with further validation using data available in literature. Finally, by utilizing the state-of-the-art non-intrusive measurement techniques, this study revealed the mechanics and distinctive features of turbulence in shallow flows over permeable rough bed.en_US
dc.format.extent212 p.en_US
dc.subjectDRNTU::Engineering::Civil engineering::Water resourcesen_US
dc.titleExperimental study of shallow flows over permeable rough beden_US
dc.contributor.researchNanyang Environment and Water Research Instituteen_US
dc.contributor.schoolSchool of Civil and Environmental Engineeringen_US
dc.contributor.supervisorCheng Nianshengen_US
dc.description.degreeDOCTOR OF PHILOSOPHY (CEE)en_US
dc.contributor.organizationDHI-NTU Research Centreen_US

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