As particle-resolved simulations (PRSs) of turbulent flows laden with finite-size solid particles become feasible, methods are needed to analyze the simulated flows in order to convert the simulation data to a form useful for model development. In this paper, the focus is on turbulence statistics at the moving fluid–solid interfaces. An averaged governing equation is developed to quantify the radial transport of turbulent kinetic energy when viewed in a frame moving with a solid particle. Using an interface-resolved flow field solved by the lattice Boltzmann method (LBM), we computed each term in the transport equation for a forced, particle-laden, homogeneous isotropic turbulence. The results illustrate the distributions and relative importance of volumetric source and sink terms, as well as pressure work, viscous stress work, and turbulence transport. In a decaying particle-laden flow, the dissipation rate and kinetic energy profiles are found to be self-similar.
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April 2016
Research-Article
Study of Local Turbulence Profiles Relative to the Particle Surface in Particle-Laden Turbulent Flows
Lian-Ping Wang,
Lian-Ping Wang
Department of Mechanical Engineering,
University of Delaware,
Newark, DE 19716-3140
e-mail: lwang@udel.edu
University of Delaware,
Newark, DE 19716-3140
e-mail: lwang@udel.edu
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Oscar G. C. Ardila,
Oscar G. C. Ardila
School of Mechanical Engineering,
Universidad del Valle,
Cali 12345, Colombia
e-mail: oscar.gerardo.castro@correounivalle.edu.co
Universidad del Valle,
Cali 12345, Colombia
e-mail: oscar.gerardo.castro@correounivalle.edu.co
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Orlando Ayala,
Orlando Ayala
Department of Engineering Technology,
Old Dominion University,
Norfolk, VA 23529
e-mail: oayala@odu.edu
Old Dominion University,
Norfolk, VA 23529
e-mail: oayala@odu.edu
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Cheng Peng
Cheng Peng
Department of Mechanical Engineering,
University of Delaware,
Newark, DE 19716-3140
e-mail: cpengxpp@udel.edu
University of Delaware,
Newark, DE 19716-3140
e-mail: cpengxpp@udel.edu
Search for other works by this author on:
Lian-Ping Wang
Department of Mechanical Engineering,
University of Delaware,
Newark, DE 19716-3140
e-mail: lwang@udel.edu
University of Delaware,
Newark, DE 19716-3140
e-mail: lwang@udel.edu
Oscar G. C. Ardila
School of Mechanical Engineering,
Universidad del Valle,
Cali 12345, Colombia
e-mail: oscar.gerardo.castro@correounivalle.edu.co
Universidad del Valle,
Cali 12345, Colombia
e-mail: oscar.gerardo.castro@correounivalle.edu.co
Orlando Ayala
Department of Engineering Technology,
Old Dominion University,
Norfolk, VA 23529
e-mail: oayala@odu.edu
Old Dominion University,
Norfolk, VA 23529
e-mail: oayala@odu.edu
Hui Gao
Cheng Peng
Department of Mechanical Engineering,
University of Delaware,
Newark, DE 19716-3140
e-mail: cpengxpp@udel.edu
University of Delaware,
Newark, DE 19716-3140
e-mail: cpengxpp@udel.edu
1Corresponding author.
Contributed by the Fluids Engineering Division of ASME for publication in the JOURNAL OF FLUIDS ENGINEERING. Manuscript received February 1, 2015; final manuscript received August 22, 2015; published online December 8, 2015. Assoc. Editor: E. E. Michaelides.
J. Fluids Eng. Apr 2016, 138(4): 041307 (14 pages)
Published Online: December 8, 2015
Article history
Received:
February 1, 2015
Revised:
August 22, 2015
Citation
Wang, L., Ardila, O. G. C., Ayala, O., Gao, H., and Peng, C. (December 8, 2015). "Study of Local Turbulence Profiles Relative to the Particle Surface in Particle-Laden Turbulent Flows." ASME. J. Fluids Eng. April 2016; 138(4): 041307. https://doi.org/10.1115/1.4031692
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