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Couette Geometry

Nonaxisymmetric MHD Instabilities of Chandrasekhar States in Taylor-Couette Geometry

Nonaxisymmetric MHD Instabilities of Chandrasekhar States in Taylor-Couette Geometry

... We consider axially periodic Taylor – Couette geometry with insulating boundary conditions. The imposed basic states are so-called Chandrasekhar states, where the azimuthal fl ow U f and magnetic fi eld B f ...

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Flow Curves in the Centered Cylindrical Couette Geometry of a Polyethylene Oxide Solution

Flow Curves in the Centered Cylindrical Couette Geometry of a Polyethylene Oxide Solution

... DOI: 10.4236/ojfd.2017.74044 692 Open Journal of Fluid Dynamics procedure for the determination of the rheological quantities that relate to this fluid. This method is simple and efficient through the results obtained ...

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Analytical solution of pressure driven gas flow and heat transfer in micro-Couette using the Burnett equations

Analytical solution of pressure driven gas flow and heat transfer in micro-Couette using the Burnett equations

... The aim of the present study is deriving an analytical solution to incompressible thermal flow in a micro-Couette geometry in the presence of a pressure gradient using Burnett equations with first- and ...

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Dynamo action in a quasi-Keplarian Taylor-Couette flow

Dynamo action in a quasi-Keplarian Taylor-Couette flow

... shearing-box simulations [24 – 31], but not in global cal- culations. In this Letter, we provide numerical evidence for the existence of such a finite-amplitude dynamo in a global Taylor-Couette geometry, ...

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Dynamo action in a quasi-Keplerian Taylor-Couette flow

Dynamo action in a quasi-Keplerian Taylor-Couette flow

... are of course other important differences between Taylor- Couette geometry and accretion disks, including the boundaries in both radial and axial directions, stratifi- cation, compressibility, etc. [5]. ...

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Self sustaining process in Taylor Couette flow

Self sustaining process in Taylor Couette flow

... plane Couette flow, which undergoes transition to three-dimensional turbulence despite being linearly stable at all Reynolds ...plane Couette flow via Taylor-Couette flow has been used by many ...

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The continuum theory of shear localization in two dimensional foam

The continuum theory of shear localization in two dimensional foam

... Figure 5. Data from the Dennin group showing shear localization in the case of circular (Couette) geometry (reprinted figure 5 from [40]). The scaled azimuthal steady-state velocity v(r)/(rΩ), where r is ...

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Applications of Riemannian Geometry Comparing with Symplectic Geometry

Applications of Riemannian Geometry Comparing with Symplectic Geometry

... Riemannian geometry is the branch of differential geometry [9] that studies Riemannian manifolds, smooth manifolds with a Riemannian ...Riemannian geometry was first put forward in generality by ...

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Geometry without topology as a new conception of geometry

Geometry without topology as a new conception of geometry

... any geometry) holds much ...informative geometry without using the curve concept (1.4). Such a geometry (T-geometry) has been constructed ...of geometry, its author did not think that ...

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Unsteady Couette Flow through a Porous Medium in a Rotating System

Unsteady Couette Flow through a Porous Medium in a Rotating System

... The unsteady Couette flow of a viscous incompressible fluid through a porous medium in a rotating system has been investigated. It is found that the primary velocity decreases and the magnitude of the secondary ...

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Couette Flows of Granular Materials: Mixing, Rheology, and Energy Dissipation

Couette Flows of Granular Materials: Mixing, Rheology, and Energy Dissipation

... Solid fraction of particles: ratio of particle volume or area to total volume or area Damping coefficient used in normal contact model of simulations Angular velocity of inner cylinder i[r] ...

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Ontology Expression of MBD Model and Research on Model Retrieval Technology

Ontology Expression of MBD Model and Research on Model Retrieval Technology

... of geometry information layer The ontology storage structure of a model individual’s geometry feature layer describes model’s feature dependency directed acyclic graph, all the feature properties and ...

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Nonaxisymmetric linear instability of cylindrical magnetohydrodynamic Taylor-Couette flow

Nonaxisymmetric linear instability of cylindrical magnetohydrodynamic Taylor-Couette flow

... The dynamics of hydrodynamic Taylor-Couette flow, in which fluid is driven between two coaxially rotating cylinders, is well understood. It is known, by Rayleigh’s stability criterion, that fluid is stable as ...

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Phase Slip Solutions in Magnetically Modulated Taylor-Couette Flow

Phase Slip Solutions in Magnetically Modulated Taylor-Couette Flow

... The flow between differentially rotating cylinders, known as Taylor-Couette flow (TC flow), is one of the oldest problems in fluid dynamics, but continues to attract considerable experimental [1–3] as well as ...

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Shercliff layers in strongly magnetic cylindrical Taylor-Couette flow

Shercliff layers in strongly magnetic cylindrical Taylor-Couette flow

... Shercliff layers are free shear layers that can occur in the flow of an electrically conducting fluid when a sufficiently strong magnetic field is externally imposed [1]. They arise due to the strongly anisotropic nature ...

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A New Approach for the Stability Analysis in Hydromagnetic Couette Flow

A New Approach for the Stability Analysis in Hydromagnetic Couette Flow

... [3] Sayed Ahmed, E.M., Hazem, A.A. and Karem, M.E. (2011) Time Dependent Pres- sure Gradient Effect on Unsteady MHD Couette Flow and Heat Transfer of a Cas- son Fluid. Journal Engineering , 3, 38-49. ...

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Instabilities of Shercliffe and Stewartson layers in spherical Couette flow

Instabilities of Shercliffe and Stewartson layers in spherical Couette flow

... Although the shear layers themselves are very similar for the two effects, the instabilities are quite different in one important aspect, namely that in the magnetic Shercliffe case they[r] ...

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Linear Taylor–Couette stability of a transversely isotropic fluid

Linear Taylor–Couette stability of a transversely isotropic fluid

... In this paper, we extended the work of Taylor and others [6,7,26,27] to study the axisymmetric linear stability of a transversely isotropic viscous fluid, contained in a Couette device. Similarly to Leslie [19], ...

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Transient Couette Flow of a Dusty Fluid between Parallel Porous Plates with the Ion slip Effect and Heat Transfer under Exponential Decaying Pressure Gradient

Transient Couette Flow of a Dusty Fluid between Parallel Porous Plates with the Ion slip Effect and Heat Transfer under Exponential Decaying Pressure Gradient

... (MHD) Couette flow of a dusty viscous incompressible electrically conducting fluid under the influence of an exponential decaying pressure gradient is investigated with heat transfer and the ion slip effect is ...

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