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  • 1
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    Stability analysis of gravity driven shear flows with free surface for power-law fluids (1998)
    Springer
    Details
    Publication Date: 1998-04-17
    Print ISSN: 0939-1533
    Electronic ISSN: 1432-0681
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Published by Springer
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  • 2
    Electronic Resource
    Electronic Resource
    Stability of couette flow in granular media (1997)
    Springer
    Journal of applied mechanics and technical physics 38 (1997), S. 850-856 
    Details
    ISSN: 1573-8620
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02467950
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Evolution of perturbations on the surface of a viscoelastic liquid (2000)
    Springer
    Journal of applied mechanics and technical physics 41 (2000), S. 456-460 
    Details
    ISSN: 1573-8620
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The stability of a layer of a viscoelastic liquid on an inclined plane is studied within the framework of the model with a time-dependent “memory” in the presence of surface tension. It is shown analytically and numerically that these flows can be stable or unstable depending on the Reynolds number. Profiles of the free surface are found as functions of the Reynolds and Weber numbers.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02465296
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  • 4
    Electronic Resource
    Electronic Resource
    Slow motion of a granular layer on an inclined plane (1998)
    Springer
    Journal of applied mechanics and technical physics 39 (1998), S. 261-264 
    Details
    ISSN: 1573-8620
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The shape of the free surface of a layer of granular material moving on an inclined plane is studied on the basis of a model of a non-Newtonian fluid with a nonlinear relation between the stress tensor and the shear rate of the flow. For small but finite elevations of the free surface, the governing equations are reduced to a quasilinear Burgers equation. Results of a numerical solution are presented for the case of arbitrary elevations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02468092
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  • 5
    Electronic Resource
    Electronic Resource
    Stability analysis of gravity driven shear flows with free surface for power-law fluids (1998)
    Springer
    Archive of applied mechanics 68 (1998), S. 169-178 
    Details
    ISSN: 1432-0681
    Keywords: Key words Shear flow ; thin film ; linear instability ; power-law fluid ; slow/rapid flow
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Summary We study the stability of thin films of fluids subject to gravity along inclined planes, obeying a power-law constitutive relation of the Ostwald-de Waele type. A first analysis, in which the inertia terms are ignored, shows such flow to be stable against small, linear perturbations; a second analysis, in which the inertia terms are included, proves that there are stable and unstable regimes that are separated by a critical Ostwald-de Waele number O. Numerical computations for selected values of O demonstrate the decay and growth rate behavior of some finite amplitude disturbances.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004190050154
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  • 6
    Electronic Resource
    Electronic Resource
    Inertial steady flow of a bed of granular material down a surface with microrelief with allowance for finite time of intergranular contacting (1999)
    Springer
    Journal of applied mechanics and technical physics 40 (1999), S. 1111-1115 
    Details
    ISSN: 1573-8620
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract An inertial flow of a granular material can be described by the laws of conservation of mass, momentum, and energy of random motion of solid particles by invoking some closing relations. In this work, these closing relations are inferred from the dimensional theory. The system of equations obtained is used to determine characteristics of a steady flow of a bed of a granular material down an inclined surface with a microrelief for various Richardson numbers and finite contact times of the particles during their collisions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02469181
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  • 7
    Electronic Resource
    Electronic Resource
    Stability of non-newtonian fluid flows (2000)
    Springer
    Journal of applied mechanics and technical physics 41 (2000), S. 446-451 
    Details
    ISSN: 1573-8620
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The stability of non-Newtonian fluid films moving on inclined planes is studied within the framework of the two-parameter Ostwald-de Waele model taking into account surface tension and van der Waals forces. The problem is solved analytically in the linear formulation, and the evolution of finite-amplitude perturbations is determined numerically.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02465294
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  • 8
    Electronic Resource
    Electronic Resource
    Wave formation on the free surface of oil films (2000)
    Springer
    Journal of applied mechanics and technical physics 41 (2000), S. 699-706 
    Details
    ISSN: 1573-8620
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The origination of wave motion on the surface of a thin layer of oil is studied. This layer is considered as an incompressible pseudoplastic fluid, and surface tension is taken into account. It is shown analytically and numerically that these flows may be stable or unstable depending on the value of the Ostwald number. Profiles of the free surface are found for various values of the Ostwald and Weber numbers.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02466869
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  • 9
    Electronic Resource
    Electronic Resource
    Analysis of stability of a thin layer of granular material moving on an inclined plane (1998)
    Springer
    Journal of applied mechanics and technical physics 39 (1998), S. 918-921 
    Details
    ISSN: 1573-8620
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The stability of a layer of a granular medium on an inclined plane has been studied within the framework of the model of a non-Newtonian fluid with an index of 2, which ensures the experimentally found quadratic dependence of the shear stress on the shear rate. It is shown analytically and numerically that these flows are stable or unstable depending on the value of the generalized Reynolds number relative to the critical value equal to5 cot α.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02468224
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