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Classical Physics papers — page 183

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Turbulence characteristics of the Bödewadt layer in a large enclosed rotor-stator system
A three-dimensional (3D) direct numerical simulation is combined with a laboratory study to describe the turbulent flow in an enclosed annular rotor-stator cavity characterized by a large aspect…
Anthony Randriamampianina, Sébastien PoncetJul 11, 2006
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The Falling Time of an Inverted Plane Pendulum
The article provides the formula for the calculation the falling time of inverted pendulum. The result is expressed in terms of elliptic integrals of first kind. The asymptotic formula for small…
Milan Batista, Joze PeterneljJul 10, 2006
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Potential model of a 2D Bunsen flame
The Michelson Sivashinsky equation, which models the non linear dynamics of premixed flames, has been recently extended to describe oblique flames. This approach was extremely successful to describe…
Bruno DenetJul 10, 2006
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Non-linear model equation for three-dimensional Bunsen flames
The non linear description of laminar premixed flames has been very successful, because of the existence of model equations describing the dynamics of these flames. The Michelson Sivashinsky equation…
Bruno DenetJul 10, 2006
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Collapsing Solutions of the Maxwell Equations
We derive the essential space-time spectrum of the Maxwell equations in linear isotropic inhomogeneous media together with the corresponding essential modes. These modes represent the collapse of the…
Neil V. Budko, Alexander B. SamokhinJul 4, 2006
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Quasi-static non-linear characteristics of double-reed instruments
This article proposes a characterisation of the double-reed in quasi-static regimes. The non-linear relation between the pressure drop Δp in the double-reed and the volume flow crossing it q is…
Andre Almeida, Christophe Vergez, René CausséJul 3, 2006
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Experimental studies of instabilities of laminar premixed flames
We first briefly recall the basic mechanisms controlling the hydrodynamic and thermo-diffusive stability of planar laminar premixed flames, and give the state of the theoretical analysis. We then…
Geoffrey SearbyJun 30, 2006
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Almost rolling motion: An investigation of rolling grooved cylinders
We examine the dynamics of cylinders that are grooved to form N teeth for rolling motion down an inclined plane. The grooved cylinders are experimentally found to reach a terminal velocity. This…
Lawrence R. Mead, Frank W. BentremJun 29, 2006
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Multipole Moments of Fractal Distribution of Charges
In this paper we consider the electric multipole moments of fractal distribution of charges. To describe fractal distribution, we use the fractional integrals. The fractional integrals are considered…
Vasily E. TarasovJun 29, 2006
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Analytical Solution for the Deformation of a Cylinder under Tidal Gravitational Forces
Quite a few future high precision space missions for testing Special and General Relativity will use optical resonators which are used for laser frequency stabilization. These devices are used for…
S. Scheithauer, C. LämmerzahlJun 28, 2006
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On some applications of Galilean electrodynamics of moving bodies
We discuss the seminal article in which Le Bellac and Lévy-Leblond have identified two Galilean limits of electromagnetism [1], and its modern implications. Recent works have shed a new light on the…
Marc De Montigny, Germain RousseauxJun 26, 2006
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On the interaction between a current density and a vector potential: Ampère force, Helmholtz tension and Larmor torque
Several mathematical formulae are used nowadays in order to compute a magnetic torque. We demonstrate that its more general expression is the vectorial product of the current density with the vector…
Germain RousseauxJun 26, 2006
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Looking for a time independent Hamiltonian of a dynamical system
In this paper we introduce a method for finding a time independent Hamiltonian of a given dynamical system by canonoid transformation. We also find a condition that the system should satisfy to have…
Michal DobrskiJun 22, 2006
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Singular Modes of the Electromagnetic Field
We show that the mode corresponding to the point of essential spectrum of the electromagnetic scattering operator is a vector-valued distribution representing the square root of the three-dimensional…
Neil V. Budko, Alexander B. SamokhinJun 15, 2006
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Stability of an electromagnetically levitated spherical sample in a set of coaxial circular loops
This paper presents a theoretical study of oscillatory and rotational instabilities of a solid spherical body, levitated electromagnetically in axisymmetric coils made of coaxial circular loops. We…
J. Priede, G. GerbethJun 14, 2006
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A complexity measure for symbolic sequences and applications to DNA
We introduce a complexity measure for symbolic sequences. Starting from a segmentation procedure of the sequence, we define its complexity as the entropy of the distribution of lengths of the domains…
Ana P. Majtey, Ramon Roman-Roldan, Pedro W. LambertiJun 13, 2006
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Synthesis of unilateral radiators
A radiator is typically a parabolic mirror illuminated by an electromagnetic source, or a cylindrical transducer of resonant vibrations. Both of these devices are designed to radiate either a beam of…
Armand WirginJun 12, 2006
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Callen's Adiabatic Piston and the Limits of the Second Law of Thermodynamics
The limits of the Second Law of Thermodynamics, which reigns undisputed in the macroscopic world, are investigated at the mesoscopic level, corresponding to spatial dimensions of a few microns. An…
Bruno Crosignani, Paolo Di Porto, Claudio ContiJun 8, 2006
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Optimal estimation for Large-Eddy Simulation of turbulence and application to the analysis of subgrid models
The tools of optimal estimation are applied to the study of subgrid models for Large-Eddy Simulation of turbulence. The concept of optimal estimator is introduced and its properties are analyzed in…
Antoine Moreau, Olivier Teytaud, Jean-Pierre BertoglioJun 6, 2006
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Still the "World's Fastest Derivation of the Lorentz Transformation"
Rothenstein's claim of a ``faster'' derivation of the Lorentz transformation is not correct.
Alan MacdonaldJun 6, 2006
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Understanding d'Alembert's principle: System of Pendulums
Lagrangian mechanics uses d'Alembert's principle of zero virtual work as an important starting point. The orthogonality of the force of constraint and virtual displacement is emphasized in…
Subhankar Ray, J. ShamannaJun 1, 2006
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A new view on relativity: Part 2. Relativistic dynamics
The Lorentz transformations are represented on the ball of relativistically admissible velocities by Einstein velocity addition and rotations. This representation is by projective maps. The…
Yaakov FriedmanJun 1, 2006
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A new view on relativity: Part 1. Kinematic relations between inertial and relativistically accelerated systems based on symmetry
Several new ideas related to Special and General Relativity are proposed. The black-box method is used for the synchronization of the clocks and the space axes between two inertial systems or two…
Yaakov FriedmanJun 1, 2006
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Vector circuit theory for spatially dispersive uniaxial magneto-dielectric slabs
We present a general dyadic vector circuit formalism, applicable for uniaxial magneto-dielectric slabs, with strong spatial dispersion explicitly taken into account. This formalism extends the vector…
Pekka Ikonen, Mikhail Lapine, Igor Nefedov et al.May 29, 2006
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Amplification and Increased Duration of Earthquake Motion on Uneven Stress-Free Ground
When a flat stress-free surface (i.e., the ground in seismological applications) separating air from a isotropic, homogeneous or horizontally-layered, solid substratum is solicited by a SH plane body…
Armand Wirgin, Jean-Philippe GrobyMay 27, 2006
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