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  • 1990-1994  (1)
  • 1950-1954  (1)
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  • 1
    Digitale Medien
    Digitale Medien
    Scalar dissipation and mixing in turbulent reacting flows (1991)
    New York, NY : American Institute of Physics (AIP)
    Physics of Fluids 3 (1991), S. 1286-1299 
    Details
    ISSN: 1089-7666
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: The mixing term that appears in probability density function-based formulations of the statistical behavior of turbulent reacting flows was studied with the use of direct numerical simulations of an irreversible, second-order, isothermal chemical reaction between initially segregated reactants in decaying, homogeneous turbulence. Three-dimensional, time-dependent pseudospectral calculations with 643 Fourier modes were made as well as were Monte Carlo simulations of the joint concentration pdf equations for coalescence–dispersion (C/D) models. It was found that the development of the scalar microscales depends largely on the initial concentration distributions (both isotropic and nonisotropic distributions were used) and is relatively independent of the reaction rate constant. Joint concentration probability density functions (pdf 's) were compared to predictions of C/D models that make use of parameters evaluated from the nonreacting or inert system. Although the models predict proper variance decay when the microscales are specified, the shapes of the pdf 's are not accurately predicted, in that the models predict too rapid a growth of probability near the mean value.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.858057
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  • 2
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    Stabilization of Fringe Benefits (1954)
    Ithaca, N.Y. : Periodicals Archive Online (PAO)
    Industrial and Labor Relations Review. 7:2 (1954:Jan.) 221 
    Details
    ISSN: 0019-7939
    Thema: Wirtschaftswissenschaften
    Notizen: Wage Policies of the WSB: A Symposium
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:3121-1954-007-02-000005
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