Outputs (7)

Paper 4: Instabilities in downslope propagating gravity currents (2024)
Conference Proceeding
Skevington, E. W. G., Lloyd, C. J., Atoufi, A., & Doak, A. (2024). Paper 4: Instabilities in downslope propagating gravity currents. In Proceedings of the NFFDy Summer Programme on ‘Data in Fluids’. https://doi.org/10.17863/CAM.107271

In this paper, the stability of a gravity current propagating down an inclined channel is explored. The gravity current is generated through a partial lock release. A local analysis of the flow about the lock is conducted using classical methodologie... Read More about Paper 4: Instabilities in downslope propagating gravity currents.

Gravity current escape from a topographic depression (2024)
Journal Article
Skevington, E. W., & Hogg, A. J. (2024). Gravity current escape from a topographic depression. Physical Review Fluids, 9(1), Article 014802. https://doi.org/10.1103/PhysRevFluids.9.014802

An inertial gravity current released within a topographic depression may climb up the incline from a lower to an upper plateau if it is sufficiently energetic and then continue to flow unsteadily away from the step while simultaneously draining back... Read More about Gravity current escape from a topographic depression.

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.

The unsteady overtopping of barriers by gravity currents and dam-break flows (2023)
Journal Article
Skevington, E. W., & Hogg, A. J. (2023). The unsteady overtopping of barriers by gravity currents and dam-break flows. Journal of Fluid Mechanics, 960, Article A27. https://doi.org/10.1017/jfm.2023.187

The collision of a gravitationally driven horizontal current with a barrier following release from a confining lock is investigated using a shallow water model of the motion, together with a sophisticated boundary condition capturing the local intera... Read More about The unsteady overtopping of barriers by gravity currents and dam-break flows.

Dam-break reflection (2021)
Journal Article
Hogg, A. J., & Skevington, E. W. G. (2021). Dam-break reflection. Quarterly Journal of Mechanics and Applied Mathematics, 74(4), 441-465. https://doi.org/10.1093/qjmam/hbab010

The unsteady reflection of dam-break flow along a horizontal channel by a remote barrier is modelled using the nonlinear shallow water equations. The interaction generates an upstream moving bore that connects the collapsing reservoir of fluid to a r... Read More about Dam-break reflection.

Development of supercritical motion and internal jumps within lock-release radial currents and draining flows (2021)
Journal Article
Skevington, E. W. G., Hogg, A. J., & Ungarish, M. (2021). Development of supercritical motion and internal jumps within lock-release radial currents and draining flows. Physical Review Fluids, 6(6), Article 063803. https://doi.org/10.1103/physrevfluids.6.063803

The unsteady radial flow of a relatively dense fluid released from an axisymmetric lock is analyzed when it freely drains over an edge and when it generates a gravity current propagating over a horizontal surface. In both situations when modeled usin... Read More about Development of supercritical motion and internal jumps within lock-release radial currents and draining flows.

Unsteady draining of reservoirs over weirs and through constrictions (2019)
Journal Article
Skevington, E. W. G., & Hogg, A. J. (2020). Unsteady draining of reservoirs over weirs and through constrictions. Journal of Fluid Mechanics, 882, Article A9. https://doi.org/10.1017/jfm.2019.808

The gravitationally driven flow of fluid from a reservoir following the partial collapse of its confining dam, or the partial opening of its confining lock, is modelled using the nonlinear shallow water equations, coupled to outflow conditions, in wh... Read More about Unsteady draining of reservoirs over weirs and through constrictions.