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  • 1
    Electronic Resource
    Electronic Resource
    A generalized self-consistent method for the effective conductivity of composites with ellipsoidal inclusions and cracked bodies (1988)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 63 (1988), S. 789-796 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: This paper is concerned with the determination of the effective thermal conductivity of particulate composites with ellipsoidal-type inclusions at nondilute concentrations with special emphasis given to the case of cracked bodies with elliptical cracks. The inclusions or cracks are randomly oriented so that the solid is effectively isotropic. The adopted micromechanics model is the "generalized self-consistent'' scheme which is based on the concept that a particle surrounded by some matrix material "sees'' an effective medium. The method, whose reliability has already been proved in the literature, is applied for the first time in the present paper to composites containing inclusions of ellipsoidal shape. The generality of the presented analysis allows the treatment of cracked bodies with randomly oriented elliptical cracks. New results are given for particulate composites and cracked bodies.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.340071
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  • 2
    Electronic Resource
    Electronic Resource
    An exact solution for the effective thermal conductivity of cracked bodies with oriented elliptical cracks (1989)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 66 (1989), S. 176-180 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A microgeometry is constructed for a cracked body with oriented elliptical cracks and an exact analytic solution is derived for its effective thermal conductivity. It is proved that the prediction of the "generalized self-consistent scheme'' for the case of a cracked body with oriented elliptical cracks coincides with the obtained exact solution for the constructed microgeometry. Results are given for elliptical cracks of different aspect ratios.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.343900
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  • 3
    Electronic Resource
    Electronic Resource
    On the effective thermal conductivity of coated short-fiber composites (1991)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 69 (1991), S. 1337-1344 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Effective-medium theories are formulated which predict the effective thermal conductivity of coated short-fiber composites. Composite aggregates that contain coated inclusions which may be aligned or randomly oriented are considered. A basic result which simplifies considerably the analysis of such systems in heat conduction problems is first established: It is shown that under certain situations a coated ellipsoidal inclusion can be replaced by an equivalent homogeneous but anisotropic one. For the composite with aligned short fibers, a microgeometry is constructed which possesses an exact solution for the effective conductivity. Self-consistent and differential schemes are formulated for the composite with randomly oriented coated short fibers.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.347269
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  • 4
    Electronic Resource
    Electronic Resource
    Hydrodynamics and stability of a deformable body moving in the proximity of interfaces (1999)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Fluids 11 (1999), S. 795-806 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The motion of a deformable body embedded in an inviscid irrotational nonuniform ambient flow field in the proximity of interfaces is treated here using a newly developed Hamiltonian formalism. The corresponding dynamic equations governing the motion of the body are derived and their integrability is investigated. We find that the presence of boundaries results in an additional chaotization of a body's motion. Based on the derived Hamiltonian formalism the Liapunov stability of the motion of a body translating parallel or towards a remote flat wall is also considered using the Energy-Casimir approach. The appropriate stability criteria are derived. Finally some applications for bubble dynamics concerning an influence of a periodical deformation of a bubble on its motion is presented. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.869952
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  • 5
    Electronic Resource
    Electronic Resource
    On the effective viscosity of a nondilute emulsion of two Stokes fluids with small capillary number (1989)
    New York, NY : American Institute of Physics (AIP)
    Physics of Fluids 1 (1989), S. 1915-1925 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A rigorous analytical framework is presented for the computation of the effective viscosity of a neutrally buoyant nondilute emulsion of two immiscible Newtonian Stokes fluids. The capillary number, which is a relative measure of viscous forces that tend to distort the drop and of the interfacial tension that favors sphericity, is assumed to be small. Thus drop distortion is ignored to first order and sphericity is preserved under small shear rates. The so-called "direct method,'' which does not involve any energy concepts, is used and also is shown to be equivalent to the traditional approach based on the dissipation function. The micromechanics model is based on the "generalized self-consistent model'' commonly used in composite media. At low concentrations the present theoretical prediction reduces to Taylor's formula [Proc. R. Soc. London Ser. A 138, 41 (1932)] and is also compared against other approximate theories and experimental data for the nondilute case. The agreement is in general surprisingly good. The present model is also shown to fall between some existing bounds, which result from the application of various variational principles. A critical comparison between these bounds is also given.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.857517
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  • 6
    Electronic Resource
    Electronic Resource
    Weakly nonlinear resonant waves generated by an oscillatory pressure distribution in a channel
    Amsterdam : Elsevier
    Wave Motion 9 (1987), S. 1-17 
    Details
    ISSN: 0165-2125
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0165-2125(87)90036-9
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  • 7
    Electronic Resource
    Electronic Resource
    On the number of solitons for the intermediate long wave equation
    Amsterdam : Elsevier
    Wave Motion 20 (1994), S. 131-142 
    Details
    ISSN: 0165-2125
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0165-2125(94)90037-X
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  • 8
    Electronic Resource
    Electronic Resource
    A note on the numerical and N-soliton solutions of the Benjamin-Ono evolution equation
    Amsterdam : Elsevier
    Wave Motion 17 (1993), S. 1-10 
    Details
    ISSN: 0165-2125
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0165-2125(93)90085-T
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  • 9
    Electronic Resource
    Electronic Resource
    Measurements of two- and three-dimensional waves in a channel, including the vicinity of cut-off frequencies (1986)
    Springer
    Experiments in fluids 5 (1986), S. 66-72 
    Details
    ISSN: 1432-1114
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Measurements of water wave profiles were performed in a rectangular flume equipped with a modular wavemaker. This particular wavemaker could generate both two- and three-dimensional waves. A method is proposed to evaluate quantitatively the deviations of a spacial flow field from the two-dimensional one. Plane propagating waves, as well as pure sloshing waves with their crests parallel to the walls, were generated in the flume. In all cases the measured amplitudes were compared against linear theory predictions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00272428
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  • 10
    Electronic Resource
    Electronic Resource
    Stochastic pursuit-evasion differential games in 3D: The case of variable speed (1988)
    Springer
    Journal of optimization theory and applications 59 (1988), S. 25-38 
    Details
    ISSN: 1573-2878
    Keywords: Stochastic differential games ; pursuit-evasion ; information structure ; line-of-sight rate vector
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract Stochastic pursuit-evasion differential games involving two players moving in the (x,y,z)-space are considered. A study is conducted of the roles of the pursuer's maneuverability and of information structure restrictions imposed on the pursuer's field of view or on the magnitude of the pursuer's line-of-sight rate vector, with respect to the outcome of the encounter.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00939864
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