## Abstract

Turbulent transport of passive scalar (e.g., number density of particles) advected by an incompressible fluid flow in the case U = v was studied in a large number of publications. Here U is the particle velocity and v is the velocity of fluid. Interesting features in turbulent transport of passive scalar appear when U ≠ v. In this case new phenomena, e.g., turbulent thermal diffusion and turbulent barodiffusion [1], and self-excitation, i.e., exponential growth of fluctuations of the number density of inertial particles [2] occur. These effects are caused by inertia of particles which results in a divergent velocity field of particles. The self-excitation of the fluctuations results in the intermittency in spatial distribution of inertial particles [2].

Original language | English |
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Pages (from-to) | 511-514 |

Number of pages | 4 |

Journal | Fluid Mechanics and its Applications |

Volume | 46 |

DOIs | |

State | Published - 1 Jan 1998 |

## Keywords

- Inertial Particle
- Particle Concentration
- Passive Scalar
- Reynolds Number
- Turbulent Transport

## ASJC Scopus subject areas

- Mechanics of Materials
- Mechanical Engineering
- Fluid Flow and Transfer Processes