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All Outputs (7)

Streamwise Turbulence Modulation in Non-Uniform Open-Channel Clay Suspension Flows (2023)
Journal Article
de Vet, M. G., Fernández, R., Baas, J. H., McCaffrey, W. D., & Dorrell, R. M. (2023). Streamwise Turbulence Modulation in Non-Uniform Open-Channel Clay Suspension Flows. Journal of Geophysical Research: Earth Surface, 128(8), Article e2022JF006781. https://doi.org/10.1029/2022JF006781

Cohesive sediment particles are ubiquitous in environmental flows. The cohesive properties of clay promote the formation of clay flocs and gels and relatively small suspended clay concentrations can enhance or suppress turbulence in a flow. Furthermo... Read More about Streamwise Turbulence Modulation in Non-Uniform Open-Channel Clay Suspension Flows.

Inadequacy of fluvial energetics for describing gravity current autosuspension (2023)
Journal Article
Fukuda, S., de Vet, M. G., Skevington, E. W., Bastianon, E., Fernández, R., Wu, X., …Dorrell, R. M. (2023). Inadequacy of fluvial energetics for describing gravity current autosuspension. Nature communications, 14(1), Article 2288. https://doi.org/10.1038/s41467-023-37724-1

Gravity currents, such as sediment-laden turbidity currents, are ubiquitous natural flows that are driven by a density difference. Turbidity currents have provided vital motivation to advance understanding of this class of flows because their enigmat... Read More about Inadequacy of fluvial energetics for describing gravity current autosuspension.

Laboratory observations on meltwater meandering rivulets on ice (2021)
Journal Article
Fernández, R., & Parker, G. (in press). Laboratory observations on meltwater meandering rivulets on ice. Earth surface dynamics ESURF ; an interactive open access journal of the European Geosciences Union, 9(2), 253-269. https://doi.org/10.5194/esurf-9-253-2021

We present a set of observations on meltwater meandering rivulets on ice and compare them (qualitatively and quantitatively) to morphologies commonly found in meandering channels in different media. The observations include data from planned centimet... Read More about Laboratory observations on meltwater meandering rivulets on ice.

Hydraulic resistance in mixed bedrock-alluvial meandering channels (2020)
Journal Article
Vitale, A. J., García, M. H., Fernández, R., Vitale, A., Parker, G., & Garcia, M. (2020). Hydraulic resistance in mixed bedrock-alluvial meandering channels. Journal of Hydraulic Research, 59(2), 298-313. https://doi.org/10.1080/00221686.2020.1780489

We present an experimental analysis of hydraulic roughness variations due to changes in alluvial cover in a mixed bedrock-alluvial meandering channel with larger bedrock roughness than alluvial roughness. Three sets of experiments were conducted in a... Read More about Hydraulic resistance in mixed bedrock-alluvial meandering channels.

Experiments on patterns of alluvial cover and bedrock erosion in a meandering channel (2019)
Journal Article
Fernández, R., Parker, G., & Stark, C. P. (in press). Experiments on patterns of alluvial cover and bedrock erosion in a meandering channel. Earth surface dynamics ESURF ; an interactive open access journal of the European Geosciences Union, 7(4), 949-968. https://doi.org/10.5194/esurf-7-949-2019

In bedrock rivers, erosion by abrasion is driven by sediment particles that strike bare bedrock while traveling downstream with the flow. If the sediment particles settle and form an alluvial cover, this mode of erosion is impeded by the protection o... Read More about Experiments on patterns of alluvial cover and bedrock erosion in a meandering channel.

Input-variable sensitivity assessment for sediment transport relations (2017)
Journal Article
Fernández, R., & Garcia, M. H. (2017). Input-variable sensitivity assessment for sediment transport relations. Water Resources Research, 53(9), 8105-8119. https://doi.org/10.1002/2016wr020249

A methodology to assess input‐variable sensitivity for sediment transport relations is presented. The Mean Value First Order Second Moment Method (MVFOSM) is applied to two bed load transport equations showing that it may be used to rank all input va... Read More about Input-variable sensitivity assessment for sediment transport relations.