Title of article :
Fix-point multiplier distributions in discrete turbulent cascade models
Author/Authors :
Jouault، نويسنده , , B. and Greiner، نويسنده , , M. and Lipa، نويسنده , , P.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2000
Abstract :
One-point time-series measurements limit the observation of three-dimensional fully developed turbulence to one dimension. For one-dimensional models, like multiplicative branching processes, this implies that the energy flux from large to small scales is not conserved locally. This then renders the random weights used in the cascade curdling to be different from the multipliers obtained from a backward averaging procedure. The resulting multiplier distributions become solutions of a fix-point problem. With a further restoration of homogeneity, all observed correlations between multipliers in the energy dissipation field can be understood in terms of simple scale-invariant multiplicative branching processes.
Keywords :
Multiplier distribution , Fix-point behaviour , Fully developed turbulence , Multiplicative branching processes
Journal title :
Physica D Nonlinear Phenomena
Journal title :
Physica D Nonlinear Phenomena