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Two-particle stochastic Eulerian–Lagrangian models of turbulent dispersion

Author

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  • Sabelfeld, K.K.
  • Kurbanmuradov, O.

Abstract

A two-particle stochastic model of turbulent dispersion in the classical isotropic pseudoturbulence is suggested. The main idea is to describe the relative motion of two particles in small scales by a stochastic differential equation, while the dispersion in large scales is governed by the Eulerian stochastic model. This leads to the nice property of the new model: in small scales it describes properly the Richardson cubic law, and at large scales it approximates well the “two-to-one” reduction principle.

Suggested Citation

  • Sabelfeld, K.K. & Kurbanmuradov, O., 1998. "Two-particle stochastic Eulerian–Lagrangian models of turbulent dispersion," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 47(2), pages 429-440.
    • Handle: RePEc:eee:matcom:v:47:y:1998:i:2:p:429-440
    DOI: 10.1016/S0378-4754(98)00124-4
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    References listed on IDEAS

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    1. Kurbanmuradov O. & Sabelfeld K. & Koluhin D., 1997. "Stochastic Lagrangian Models for Two-Particle Motion in Turbulent Flows. Numerical Results," Monte Carlo Methods and Applications, De Gruyter, vol. 3(3), pages 199-224, December.
    2. Sabelfeld K.K. & Kurbanmuradov O., 1997. "Stochastic Lagrangian Models for Two-Particle Motion in Turbulent Flows," Monte Carlo Methods and Applications, De Gruyter, vol. 3(1), pages 53-72, December.
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