Instability and transition to turbulence in a free shear layer affected by a parallel magnetic field [PDF]
, 2007 Instability and transition to turbulence in a temporally evolving free shear layer of an electrically conducting fluid affected by an imposed parallel magnetic field is investigated numerically. The case of low magnetic Reynolds number is considered.
Vorobev, Anatoliy +3 more
core +1 more source
Global bifurcations to subcritical magnetorotational dynamo action in Keplerian shear flow [PDF]
, 2013 Magnetorotational dynamo action in Keplerian shear flow is a three-dimensional, non-linear magnetohydrodynamic process whose study is relevant to the understanding of accretion processes and magnetic field generation in astrophysics.
Cossu, Carlo +12 more
core +1 more source
On ice-induced instability in free-surface flows. [PDF]
, 2007 The problem of stability of a water-coated ice layer is investigated for a free-surface flow of a thin water film down an inclined plane. An asymptotic (double-deck) theory is developed for a flow with large Reynolds and Froude numbers which is then used
Shapiro, E +3 more
core +2 more sources
Reynolds stresses and mean fields generated by pure waves: applications to shear flows and convection in a rotating shell [PDF]
, 2008 A general reformulation of the Reynolds stresses created by two-dimensional waves breaking a translational or a rotational invariance is described. This reformulation emphasizes the importance of a geometrical factor: the slope of the separatrices of the
Simitev, R. +6 more
core +1 more source
A Robust Control Approach to Understanding Nonlinear Mechanisms in Shear Flow Turbulence [PDF]
, 2010 A robust control framework is used to investigate a streamwise constant projection of the Navier Stokes equations for plane Couette flow. Study of this streamwise constant model is motivated by both numerical and experimental observations that suggest ...
Gayme, Dennice F. Maynard
core +1 more source
On the modelling of isothermal gas flows at the microscale [PDF]
, 2008 This paper makes two new propositions regarding the modelling of rarefied (non-equilibrium) isothermal gas flows at the microscale. The first is a new test case for benchmarking high-order, or extended, hydrodynamic models for these flows.
Reese, Jason M., Lockerby, Duncan A.
core +1 more source
Large-Eddy Simulations of Molecular Mixing in a Recirculating Shear Flow [PDF]
, 2008 The flow field and mixing in an expansion-ramp geometry is studied using large-eddy simulation (LES) with subgrid scale (SGS) modeling based on the stretched-vortex model.
Matheou, Georgios
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A Marginal Stability Paradigm for Shear‐Induced Diapycnal Turbulent Mixing in the Ocean [PDF]
, 2022 Turbulent mixing induced by breaking internal waves is key to the ocean circulation and global tracer budgets. While the classic marginal shear instability of Richardson number ∼1/4 has been considered as potentially relevant to turbulent wave breaking ...
core +2 more sources
Effect of Aspect Ratio on the Three-Dimensional Global Instability Analysis of Incompressible Open Cavity Flows [PDF]
, 2011 The stability analysis of open cavity flows is a problem of great interest in the aeronautical industry. This type of flow can appear, for example, in landing gears or auxiliary power unit configurations.
Vassilios Theofilis +26 more
core +2 more sources
Critical-layer instability of shallow water magnetohydrodynamic shear flows [PDF]
, 2022 In this paper, the instability of shallow water shear flow with a sheared parallel magnetic field is studied. Waves propagating in such magnetic shear flows encounter critical levels where the phase velocity relative to the basic flow $c-U(y)$ matches ...
Gilbert, A +5 more
core +3 more sources