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  • 1985-1989  (3)
Source
Material
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Buoyancy effect on dispersion of a solute in a flow through a horizontal channel (1986)
    Springer
    Acta mechanica 58 (1986), S. 137-152 
    Details
    ISSN: 1619-6937
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Summary The paper is concerned with the statistical study of the dispersion of a cloud of solute injected into a combined free and forced convective laminar flow through a parallel plate channel under the action of a uniform linear axial temperature variation along the channel walls, including the buoyancy forces. The main idea is to study the effect of the Grashof number on the variance, skewness, and kurtosis of the distribution of concentration of the solute for all time. It is found that there is a critical Grashof number for which the distribution of concentration about the mean is exactly a Gaussian function.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01176596
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Dispersion of contaminant in oscillatory flows (1988)
    Springer
    Acta mechanica 74 (1988), S. 107-122 
    Details
    ISSN: 1619-6937
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Summary An extension of the Aris-Barton method of moments is presented for the study of statustucal behaviour of dispersion of contaminant molecules in oscillatory flows inside uniform conduits. The main idea is to replace the constant pressure gradient which causes the flow simply by the time-dependent one, and then investigate the effects of the amplitude and frequency of the pressure pulsations on the dispersion process. The technique incorporates the case of the time-independent flow also, and gives an exact analysis of the central moments of the distribution of the cloud of contaminant, which are valid for all times after the injection. The general theory is applied to oscillatory laminar flows in tubes, and between parallel plates.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01194345
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Dispersion of contaminant in oscillatory flow through a pipe — Computation of moments (1989)
    Springer
    Acta mechanica 80 (1989), S. 151-156 
    Details
    ISSN: 1619-6937
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Summary Finite—difference implicit scheme is adopted to solve the Aris-moment equations of dispersion of solute in an oscillatory flow through a pipe for all time. Mean concentration distribution have been calculated from first four central moments by using Hermite polynomials and the deviations from Gaussianity have also been examined for unsteady flow.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01178186
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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