Dispersive shock waves in viscously deformable media
@article{Lowman2013DispersiveSW, title={Dispersive shock waves in viscously deformable media}, author={Nicholas K. Lowman and Mark A. Hoefer}, journal={Journal of Fluid Mechanics}, year={2013}, volume={718}, pages={524 - 557} }
Abstract The viscously dominated, low-Reynolds-number dynamics of multi-phase, compacting media can lead to nonlinear, dissipationless/dispersive behaviour when viewed appropriately. In these systems, nonlinear self-steepening competes with wave dispersion, giving rise to dispersive shock waves (DSWs). Example systems considered here include magma migration through the mantle as well as the buoyant ascent of a low-density fluid through a viscously deformable conduit. These flows are modelled by…
53 Citations
Shock Waves in Dispersive Eulerian Fluids
- PhysicsJ. Nonlinear Sci.
- 2014
The long-time behavior of an initial step resulting in a dispersive shock wave (DSW) for the one-dimensional isentropic Euler equations regularized by generic, third-order dispersion is considered by use of Whitham averaging and deviations in the large amplitude regime are identified.
Shock Waves in Dispersive Eulerian Fluids
- PhysicsJournal of Nonlinear Science
- 2014
The long-time behavior of an initial step resulting in a dispersive shock wave (DSW) for the one-dimensional isentropic Euler equations regularized by generic, third-order dispersion is considered by…
Shock Waves in Dispersive Hydrodynamics with Nonconvex Dispersion
- PhysicsSIAM J. Appl. Math.
- 2017
The fifth order Korteweg--de Vries (KdV) equation is shown to be a universal model of Eulerian hydrodynamics with higher order dispersive effects and the long-time behavior of solutions for step-like initial data is classified.
Viscous Fluid Conduits as a Prototypical Nonlinear Dispersive Wave Platform
- Physics
- 2014
LOWMAN, NICHOLAS K. Viscous Fluid Conduits as a Prototypical Nonlinear Dispersive Wave Platform. (Under the direction of Mark Hoefer.) This thesis is devoted to the comprehensive characterization of…
Dispersive shock waves governed by the Whitham equation and their stability
- PhysicsProceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences
- 2018
Dispersive shock waves (DSWs), also termed undular bores in fluid mechanics, governed by the non-local Whitham equation are studied in order to investigate short wavelength effects that lead to…
Dispersive Hydrodynamics : the Mathematics of Dispersive Shock Waves and Applications
- Physics
- 2015
Dispersive hydrodynamics is the domain of applied mathematics and physics concerned with fluid motion in which internal friction, e.g., viscosity, is negligible relative to wave dispersion. In…
Interactions of large amplitude solitary waves in viscous fluid conduits
- PhysicsJournal of Fluid Mechanics
- 2014
Abstract The free interface separating an exterior, viscous fluid from an intrusive conduit of buoyant, less viscous fluid is known to support strongly nonlinear solitary waves due to a balance…
Solitary wave fission of a large disturbance in a viscous fluid conduit
- PhysicsJournal of Fluid Mechanics
- 2019
This paper presents a theoretical and experimental study of the long-standing fluid mechanics problem involving the temporal resolution of a large localised initial disturbance into a sequence of…
Interaction of linear modulated waves with unsteady dispersive hydrodynamic states
- Physics
- 2018
A new type of wave-mean flow interaction is identified and studied in which a small-amplitude, linear, dispersive modulated wave propagates through an evolving, nonlinear, large-scale fluid state…
Dispersive and Diffusive-Dispersive Shock Waves for Nonconvex Conservation Laws
- MathematicsSIAM Rev.
- 2017
This review compares the structure of solutions of Riemann problems for a conservation law with nonconvex, cubic flux regularized by two different mechanisms: (1) dispersion in the modified Korteweg--de Vries (mKdV) equation; and (2) a combination of diffusion and disp immersion in the mKDV--Burgers equation.
References
SHOWING 1-10 OF 53 REFERENCES
Solitary wave propagation in a fluid conduit within a viscous matrix
- Physics
- 1986
Conduits of low-viscosity, buoyant fluid imbedded in a highly viscous matrix have been used to model the dynamics of magma transport in vertical dikes and within zones of partial melt. The theory…
Dispersive and classical shock waves in Bose-Einstein condensates and gas dynamics
- Physics
- 2006
A Bose-Einstein condensate (BEC) is a quantum fluid that gives rise to interesting shock-wave nonlinear dynamics. Experiments depict a BEC that exhibits behavior similar to that of a shock wave in a…
Magma ascent by porous flow
- Geology
- 1986
Porous flow of buoyant liquid through partially molten rock is regarded as the initial transport process leading to magma segregation in the mantle. Recent work has identified the importance of…
Observations of solitary waves in a viscously deformable pipe
- PhysicsNature
- 1986
We have made simple observations of the ascent of a buoyant fluid through a pipe formed in a denser and more viscous fluid that can deform viscously and allow the pipe radius to change. There is no…
Degenerate dispersive equations arising in the study of magma dynamics
- Mathematics
- 2006
An outstanding problem in Earth science is understanding the method of transport of magma in the Earth's mantle. Two proposed methods for this transport are percolation through porous rock and flow…
Solitary waves on conduits of buoyant fluid in a more viscous fluid
- Physics
- 1990
Abstract Fluid of a lower density and viscosity can buoyantly rise through a viscous fluid through conduits that support simple pipe flows. The conduits also support solitary waves which exhibit near…
Flow in deformable porous media. Part 1 Simple analysis
- GeologyJournal of Fluid Mechanics
- 1993
Many processes in the Earth, such as magma migration, can be described by the flow of a low-viscosity fluid in a viscously deformable, permeable matrix. The purpose of this and a companion paper is…