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Title: Baropycnal Work: A Mechanism for Energy Transfer across Scales

Journal Article · · Fluids

The role of baroclinicity, which arises from the misalignment of pressure and density gradients, is well-known in the vorticity equation, yet its role in the kinetic energy budget has never been obvious. Here, we show that baroclinicity appears naturally in the kinetic energy budget after carrying out the appropriate scale decomposition. Strain generation by pressure and density gradients, both barotropic and baroclinic, also results from our analysis. These two processes underlie the recently identified mechanism of “baropycnal work”, which can transfer energy across scales in variable density flows. As such, baropycnal work is markedly distinct from pressure-dilatation into which the former is implicitly lumped in Large Eddy Simulations. We provide numerical evidence from 10243 direct numerical simulations of compressible turbulence. The data shows excellent pointwise agreement between baropycnal work and the nonlinear model we derive, supporting our interpretation of how it operates.

Research Organization:
Univ. of Rochester, NY (United States). Lab. for Laser Energetics; Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC)
Sponsoring Organization:
USDOE Office of Science (SC), Fusion Energy Sciences (FES); USDOE National Nuclear Security Administration (NNSA); National Aeronautics and Space Administration (NASA)
Grant/Contract Number:
SC0014318; SC0019329; NA0003856; AC02-05CH11231; 80NSSC18K0772
OSTI ID:
1514738
Alternate ID(s):
OSTI ID: 1531342; OSTI ID: 1658632
Journal Information:
Fluids, Journal Name: Fluids Vol. 4 Journal Issue: 2; ISSN 2311-5521
Publisher:
MDPICopyright Statement
Country of Publication:
Switzerland
Language:
English

References (73)

Multi-scale gradient expansion of the turbulent stress tensor journal February 2006
An Onsager Singularity Theorem for Turbulent Solutions of Compressible Euler Equations journal December 2017
Localness of energy cascade in hydrodynamic turbulence. I. Smooth coarse graining journal November 2009
Imprint of Large-Scale Flows on Turbulence journal December 2005
Further space-time correlations of velocity in a turbulent boundary layer journal January 1958
Energy transfer in compressible magnetohydrodynamic turbulence journal September 2017
Exact Results on Scaling Exponents in the 2D Enstrophy Cascade journal May 1995
Energy and Enstrophy Transfer in Decaying Two-Dimensional Turbulence journal March 2003
Subgrid‐scale backscatter in turbulent and transitional flows journal July 1991
Spatiotemporal persistence of spectral fluxes in two-dimensional weak turbulence journal November 2011
Cascades and Dissipative Anomalies in Compressible Fluid Turbulence journal February 2018
Energy Cascade in Large-Eddy Simulations of Turbulent Fluid Flows book January 1975
Statistical geometry of subgrid-scale stresses determined from holographic particle image velocimetry measurements journal April 2002
Experimental study of spectral energy fluxes in turbulence generated by a fractal, tree-like object journal November 2013
Cascades and transitions in turbulent flows journal November 2018
Scale Locality of Magnetohydrodynamic Turbulence journal February 2010
High-Reynolds number Rayleigh–Taylor turbulence journal January 2009
Statistics of turbulence subgrid‐scale stresses: Necessary conditions and experimental tests journal February 1994
Supersonic Combustion in Air-Breathing Propulsion Systems for Hypersonic Flight journal January 2018
Compressible Turbulence: The Cascade and its Locality journal April 2011
Satellite Observations of Imprint of Oceanic Current on Wind Stress by Air-Sea Coupling journal December 2017
Reynolds and Mach number scaling in solenoidally-forced compressible turbulence using high-resolution direct numerical simulations journal January 2016
Large-scale flow effects, energy transfer, and self-similarity on turbulence journal July 2006
Study of ultrahigh Atwood-number Rayleigh–Taylor mixing dynamics using the nonlinear large-eddy simulation method journal April 2011
Scale decomposition in compressible turbulence journal March 2013
Comparing the statistics of interstellar turbulence in simulations and observations: Solenoidal versus compressive turbulence forcing journal March 2010
The Density Probability Distribution in Compressible Isothermal Turbulence: Solenoidal versus Compressive Forcing journal October 2008
Dissipative anomalies in singular Euler flows journal August 2008
An Air-Sea Interaction Theory for Tropical Cyclones. Part I: Steady-State Maintenance journal March 1986
Self-Similar Multimode Bubble-Front Evolution of the Ablative Rayleigh-Taylor Instability in Two and Three Dimensions journal October 2018
A hybrid numerical simulation of isotropic compressible turbulence journal July 2010
Joint downscale fluxes of energy and potential enstrophy in rotating stratified Boussinesq flows journal November 2011
The Statistics of Supersonic Isothermal Turbulence journal August 2007
Supernova Driving. ii. Compressive Ratio in Molecular-Cloud Turbulence journal June 2016
Inviscid criterion for decomposing scales journal May 2018
The pirouette effect in turbulent flows journal June 2011
The direct enstrophy cascade of two-dimensional soap film flows journal May 2014
Scale-Invariance and Turbulence Models for Large-Eddy Simulation journal January 2000
Locality of turbulent cascades journal July 2005
Equilibrium statistical mechanics of compressible isotropic turbulence journal June 1997
Subgrid-scale backscatter in reacting and inert supersonic hydrogen–air turbulent mixing layers journal March 2014
The analysis and modelling of dilatational terms in compressible turbulence journal June 1991
An overview of Rayleigh-Taylor instability journal July 1984
Long-range ordering of turbulent stresses in two-dimensional flow journal June 2015
Realizability conditions for the turbulent stress tensor in large-eddy simulation journal November 1994
Air entrainment and bubble statistics in breaking waves journal July 2016
On the properties of similarity subgrid-scale models as deduced from measurements in a turbulent jet journal September 1994
Incipient thermal choking and stable shock-train formation in the heat-release region of a scramjet combustor. Part II: Large eddy simulations journal April 2015
Production and dissipation of vorticity in a turbulent fluid journal January 1938
Localness of energy cascade in hydrodynamic turbulence. II. Sharp spectral filter journal November 2009
Mapping the Energy Cascade in the North Atlantic Ocean: The Coarse-Graining Approach journal February 2018
Energy transfer in Rayleigh-Taylor instability journal August 2002
Advection and the Efficiency of Spectral Energy Transfer in Two-Dimensional Turbulence journal August 2016
On the role of anisotropic turbomachinery flow structures in inter-scale turbulence energy flux as deduced from SPIV measurements journal November 2013
Influence of orientation on the evolution of small perturbations in compressible shear layers with inflection points journal March 2017
Nonlinear excitation of the ablative Rayleigh-Taylor instability for all wave numbers journal January 2018
Coarse-grained incompressible magnetohydrodynamics: analyzing the turbulent cascades journal February 2017
Energy and spectral dynamics in forced compressible turbulence journal June 1990
Effect of filter type on the statistics of energy transfer between resolved and subfilter scales from a-priori analysis of direct numerical simulations of isotropic turbulence journal November 2017
Decomposition of the spatially filtered and ensemble averaged kinetic energy, the associated fluxes and scaling trends in a rotor wake journal August 2005
Cascade of Kinetic Energy in Three-Dimensional Compressible Turbulence journal May 2013
Turbulence: the filtering approach journal May 1992
Local energy flux and subgrid-scale statistics in three-dimensional turbulence journal July 1998
Three-dimensional single-mode nonlinear ablative Rayleigh-Taylor instability journal February 2016
Forcing for statistically stationary compressible isotropic turbulence journal November 2010
Local energy flux and the refined similarity hypothesis journal January 1995
An examination of forcing in direct numerical simulations of turbulence journal January 1988
On using large-eddy simulation for the prediction of noise from cold and heated turbulent jets journal August 2005
Scale interactions of turbulence subjected to a straining–relaxation–destraining cycle journal August 2006
Compressibility Effects on Turbulence journal January 1994
Energy cascade and scaling in supersonic isothermal turbulence journal July 2013
Simulating liquid droplets: A quantitative assessment of lattice Boltzmann and Volume of Fluid methods journal April 2018
Cascade of circulations in fluid turbulence journal December 2006

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