skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Sound and turbulence modulation by particles in high-speed shear flows

Abstract

High-speed free-shear-flow turbulence, laden with droplets or particles, can radiate weaker pressure fluctuations than its unladen counterpart. In this study, Eulerian–Lagrangian simulations of high-speed temporally evolving shear layers laden with monodisperse, adiabatic, inertial particles are used to examine particle–turbulence interactions and their effect on radiated pressure fluctuations. An evolution equation for gas-phase pressure intensity is formulated for particle-laden flows, and local mechanisms of pressure changes are quantified over a range of Mach numbers and particle mass loadings. Particle–turbulence interactions alter the local pressure intensity directly via volume displacement (due to the flow of finite-size particles) and drag coupling (due to local slip velocity between phases), and indirectly through significant turbulence changes. The sound radiation intensity near subsonic mixing layers increases with mass loading, consistent with existing low Mach number theory. For supersonic flows, sound levels decrease with mass loading, consistent with trends observed in previous experiments. Particle-laden cases exhibit reduced turbulent kinetic energy compared to single-phase flow, providing one source of their sound changes; however, the subsonic flow does not support such an obvious source-to-sound decomposition to explain its sound intensity increase. Despite its decrease in turbulence intensity, the louder particle-laden subsonic flows show an increase in the magnitude andmore » time-rate-of-change of fluid dilatation, providing a mechanism for its increased sound radiation. Contrasting this, the quieter supersonic particle-laden flows exhibit decreased gas-phase dilatation yet its time-rate-of-change is relatively insensitive to mass loading, supporting such a connection.« less

Authors:
ORCiD logo [1];  [2]; ORCiD logo [2]
  1. Univ. of Illinois at Urbana-Champaign, IL (United States). Coordinated Science Laboratory
  2. Univ. of Michigan, Ann Arbor, MI (United States). Dept. of Mechanical Engineering
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF); UT-Battelle LLC/ORNL, Oak Ridge, TN (Unted States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1565740
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Journal Article
Journal Name:
Journal of Fluid Mechanics
Additional Journal Information:
Journal Volume: 875; Journal ID: ISSN 0022-1120
Publisher:
Cambridge University Press
Country of Publication:
United States
Language:
English
Subject:
Mechanics; Physics

Citation Formats

Buchta, David A., Shallcross, Gregory, and Capecelatro, Jesse. Sound and turbulence modulation by particles in high-speed shear flows. United States: N. p., 2019. Web. doi:10.1017/jfm.2019.467.
Buchta, David A., Shallcross, Gregory, & Capecelatro, Jesse. Sound and turbulence modulation by particles in high-speed shear flows. United States. doi:10.1017/jfm.2019.467.
Buchta, David A., Shallcross, Gregory, and Capecelatro, Jesse. Thu . "Sound and turbulence modulation by particles in high-speed shear flows". United States. doi:10.1017/jfm.2019.467.
@article{osti_1565740,
title = {Sound and turbulence modulation by particles in high-speed shear flows},
author = {Buchta, David A. and Shallcross, Gregory and Capecelatro, Jesse},
abstractNote = {High-speed free-shear-flow turbulence, laden with droplets or particles, can radiate weaker pressure fluctuations than its unladen counterpart. In this study, Eulerian–Lagrangian simulations of high-speed temporally evolving shear layers laden with monodisperse, adiabatic, inertial particles are used to examine particle–turbulence interactions and their effect on radiated pressure fluctuations. An evolution equation for gas-phase pressure intensity is formulated for particle-laden flows, and local mechanisms of pressure changes are quantified over a range of Mach numbers and particle mass loadings. Particle–turbulence interactions alter the local pressure intensity directly via volume displacement (due to the flow of finite-size particles) and drag coupling (due to local slip velocity between phases), and indirectly through significant turbulence changes. The sound radiation intensity near subsonic mixing layers increases with mass loading, consistent with existing low Mach number theory. For supersonic flows, sound levels decrease with mass loading, consistent with trends observed in previous experiments. Particle-laden cases exhibit reduced turbulent kinetic energy compared to single-phase flow, providing one source of their sound changes; however, the subsonic flow does not support such an obvious source-to-sound decomposition to explain its sound intensity increase. Despite its decrease in turbulence intensity, the louder particle-laden subsonic flows show an increase in the magnitude and time-rate-of-change of fluid dilatation, providing a mechanism for its increased sound radiation. Contrasting this, the quieter supersonic particle-laden flows exhibit decreased gas-phase dilatation yet its time-rate-of-change is relatively insensitive to mass loading, supporting such a connection.},
doi = {10.1017/jfm.2019.467},
journal = {Journal of Fluid Mechanics},
issn = {0022-1120},
number = ,
volume = 875,
place = {United States},
year = {2019},
month = {7}
}

Works referenced in this record:

Compressible mixing layer growth rate and turbulence characteristics
journal, August 1996


Role of fluid heating in dense gas–solid flow as revealed by particle-resolved direct numerical simulation
journal, March 2013


Summation by Parts for Finite Difference Approximations for d/dx
journal, January 1994


Drag law for monodisperse gas–solid systems using particle-resolved direct numerical simulation of flow past fixed assemblies of spheres
journal, November 2011


High speed imaging of particle flow fields in CFB risers
journal, July 2013


The pressure–dilatation correlation in compressible flows
journal, December 1992

  • Sarkar, S.
  • Physics of Fluids A: Fluid Dynamics, Vol. 4, Issue 12
  • DOI: 10.1063/1.858454

Mechanisms for particle transfer and segregation in a turbulent boundary layer
journal, October 2002


Inter-phase heat transfer and energy coupling in turbulent dispersed multiphase flows
journal, March 2016

  • Ling, Y.; Balachandar, S.; Parmar, M.
  • Physics of Fluids, Vol. 28, Issue 3
  • DOI: 10.1063/1.4942184

Preferential concentration of particles by turbulence
journal, August 1994


Equation of motion for a sphere in non-uniform compressible flows
journal, April 2012

  • Parmar, M.; Haselbacher, A.; Balachandar, S.
  • Journal of Fluid Mechanics, Vol. 699
  • DOI: 10.1017/jfm.2012.109

A stable high-order finite difference scheme for the compressible Navier–Stokes equations, far-field boundary conditions
journal, July 2007

  • Svärd, Magnus; Carpenter, Mark H.; Nordström, Jan
  • Journal of Computational Physics, Vol. 225, Issue 1
  • DOI: 10.1016/j.jcp.2007.01.023

The role of meso-scale structures in rapid gas–solid flows
journal, October 2001


Turbulent Dispersed Multiphase Flow
journal, January 2010


Fluid Mechanical Description of Fluidized Beds. Equations of Motion
journal, November 1967

  • Anderson, T. B.; Jackson, Roy
  • Industrial & Engineering Chemistry Fundamentals, Vol. 6, Issue 4
  • DOI: 10.1021/i160024a007

The transport of discrete particles in inhomogeneous turbulence
journal, January 1983


An Euler–Lagrange strategy for simulating particle-laden flows
journal, April 2013


A study of compressibility effects in the high-speed turbulent shear layer using direct simulation
journal, January 2002


On the two‐way interaction between homogeneous turbulence and dispersed solid particles. I: Turbulence modification
journal, July 1993

  • Elghobashi, S.; Truesdell, G. C.
  • Physics of Fluids A: Fluid Dynamics, Vol. 5, Issue 7
  • DOI: 10.1063/1.858854

From Bubbles to Clusters in Fluidized Beds
journal, August 1998


The Noise from Turbulence Convected at High Speed
journal, April 1963

  • Williams, J. E. F.
  • Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, Vol. 255, Issue 1061
  • DOI: 10.1098/rsta.1963.0010

On fluid–particle dynamics in fully developed cluster-induced turbulence
journal, September 2015

  • Capecelatro, Jesse; Desjardins, Olivier; Fox, Rodney O.
  • Journal of Fluid Mechanics, Vol. 780
  • DOI: 10.1017/jfm.2015.459

Anisotropic clustering of inertial particles in homogeneous shear flow
journal, June 2009


Transfer of heat or mass to particles in fixed and fluidised beds
journal, April 1978


A multiphase model for compressible granular–gaseous flows: formulation and initial tests
journal, January 2016


On multiphase turbulence models for collisional fluid–particle flows
journal, February 2014


The Mach wave field radiated by supersonic turbulent shear flows
journal, April 1965


Wave Packets and Turbulent Jet Noise
journal, January 2013


A practical discrete-adjoint method for high-fidelity compressible turbulence simulations
journal, March 2015

  • Vishnampet, Ramanathan; Bodony, Daniel J.; Freund, Jonathan B.
  • Journal of Computational Physics, Vol. 285
  • DOI: 10.1016/j.jcp.2015.01.009