Optimal transient growth in thin-interface internal solitary waves [PDF]
, 2017 The dynamics of perturbations to large-amplitude Internal Solitary Waves (ISW) in two-layered flows with thin interfaces is analyzed by means of linear optimal transient growth methods. Optimal perturbations are computed through direct-adjoint iterations
Helfrich, Karl R. +2 more
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Finite-temperature effects in helical quantum turbulence [PDF]
, 2018 We perform a study of the evolution of helical quantum turbulence at different temperatures by solving numerically the Gross-Pitaevskii and the stochastic Ginzburg-Landau equations, using up to 40963 grid points with a pseudospectral method. We show that
Brachet, Marc E. +2 more
core +1 more source
Tsunami generation by paddle motion and its interaction with a beach: Lagrangian modelling and experiment [PDF]
, 2013 A 2D Lagrangian numerical wave model is presented and validated against a set of physical wave-flume experiments on interaction of tsunami waves with a sloping beach. An iterative methodology is proposed and applied for experimental generation of tsunami-
Buldakov, E
core +1 more source
A systematic numerical study of the tidal instability in a rotating triaxial ellipsoid [PDF]
, 2010 The full non-linear evolution of the tidal instability is studied numerically in an ellipsoidal fluid domain relevant for planetary cores applications.
Aldridge +60 more
core +6 more sources
Absolute and convective instabilities in an inviscid compressible mixing layer [PDF]
, 2007 We consider the stability of a compressible shear flow separating two streams of different speeds and temperatures. The velocity and temperature profiles in this mixing layer are hyperbolic tangents.
Baranov +31 more
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Inertial waves in a differentially rotating spherical shell
, 2012 We investigate the properties of small-amplitude inertial waves propagating in a differentially rotating incompressible fluid contained in a spherical shell. For cylindrical and shellular rotation profiles and in the inviscid limit, inertial waves obey a
Baruteau, C., Rieutord, M.
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Inviscid Criterion for Decomposing Scales
, 2018 The proper scale decomposition in flows with significant density variations is not as straightforward as in incompressible flows, with many possible ways to define a `length-scale.' A choice can be made according to the so-called \emph{inviscid criterion}
Aluie, Hussein, Zhao, Dongxiao
core +1 more source
Compressibility effects on the Rayleigh-Taylor instability growth between immiscible fluids
, 2003 The linearized Navier-Stokes equations for a system of superposed immiscible compressible ideal fluids are analyzed. The results of the analysis reconcile the stabilizing and destabilizing effects of compressibility reported in the literature.
Livescu, Daniel
core +1 more source
Classification of instabilities in parallel two-phase flow [PDF]
, 1996 There is extensive literature on the stability of parallel two-phase flow, both in the context of liquid-liquid as well as gas-liquid flow. Aimed at making this literature more transparent, this paper presents a classification,scheme for the various ...
Boomkamp, P.A.M. +2 more
core +5 more sources
Swirling fluid flow in flexible, expandable elastic tubes: variational approach, reductions and integrability [PDF]
, 2019 Many engineering and physiological applications deal with situations when a fluid is moving in flexible tubes with elastic walls. In the real-life applications like blood flow, there is often an additional complexity of vorticity being present in the ...
Ivanov, Rossen, Putkaradze, Vakhtang
core +3 more sources