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Direct numerical simulations of turbulent pipe flow laden with finite-size neutrally buoyant particles at low flow Reynolds number
- Source :
- Acta Mechanica. 230:517-539
- Publication Year :
- 2018
- Publisher :
- Springer Science and Business Media LLC, 2018.
-
Abstract
- In this paper, turbulent pipe flows laden with finite-size particles are investigated, using the direct numerical simulations based on the lattice Boltzmann method. Our focus is on the modulation of turbulence statistics in the pipe due to the presence of finite-size neutrally buoyant particles, and the question if the characteristics of modulation differ from those in a turbulent channel flow under comparable system parameters in order to reveal the effect of curved walls in the pipe. The mechanisms responsible for modulations of the turbulent intensity in the pipe flow are clarified through a quantitative budget analysis of the turbulent kinetic energy.
- Subjects :
- Turbulence
Mechanical Engineering
Flow (psychology)
Computational Mechanics
Lattice Boltzmann methods
Reynolds number
02 engineering and technology
Mechanics
01 natural sciences
010305 fluids & plasmas
Pipe flow
Physics::Fluid Dynamics
symbols.namesake
020303 mechanical engineering & transports
0203 mechanical engineering
0103 physical sciences
Turbulence kinetic energy
symbols
Intensity (heat transfer)
Dimensionless quantity
Subjects
Details
- ISSN :
- 16196937 and 00015970
- Volume :
- 230
- Database :
- OpenAIRE
- Journal :
- Acta Mechanica
- Accession number :
- edsair.doi...........8ad80560e20fec4c68a8b2e134b966b7