Turbulent mixing and transition criteria of flows induced by hydrodynamic instabilities
In diverse areas of science and technology, including inertial confinement fusion (ICF), astrophysics, geophysics, and engineering processes, turbulent mixing induced by hydrodynamic instabilities is of scientific interest as well as practical significance. Because of the fundamental roles they ofte...
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description | In diverse areas of science and technology, including inertial confinement fusion (ICF), astrophysics, geophysics, and engineering processes, turbulent mixing induced by hydrodynamic instabilities is of scientific interest as well as practical significance. Because of the fundamental roles they often play in ICF and other applications, three classes of hydrodynamic instability-induced turbulent flows—those arising from the Rayleigh-Taylor, Richtmyer-Meshkov, and Kelvin-Helmholtz instabilities—have attracted much attention. ICF implosions, supernova explosions, and other applications illustrate that these phases of instability growth do not occur in isolation, but instead are connected so that growth in one phase feeds through to initiate growth in a later phase. Essentially, a description of these flows must encompass both the temporal and spatial evolution of the flows from their inception. Hydrodynamic instability will usually start from potentially infinitesimal spatial perturbations, will eventually transition to a turbulent flow, and then will reach a final state of a true multiscale problem. Indeed, this change in the spatial scales can be vast, with hydrodynamic instability evolving from just a few microns to thousands of kilometers in geophysical or astrophysical problems. These instabilities will evolve through different stages before transitioning to turbulence, experiencing linear, weakly, and highly nonlinear states. The challenges confronted by researchers are enormous. The inherent difficulties include characterizing the initial conditions of such flows and accurately predicting the transitional flows. Of course, fully developed turbulence, a focus of many studies because of its major impact on the mixing process, is a notoriously difficult problem in its own right. In this pedagogical review, we will survey challenges and progress, and also discuss outstanding issues and future directions. |
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(LLNL), Livermore, CA (United States)</creatorcontrib><description>In diverse areas of science and technology, including inertial confinement fusion (ICF), astrophysics, geophysics, and engineering processes, turbulent mixing induced by hydrodynamic instabilities is of scientific interest as well as practical significance. Because of the fundamental roles they often play in ICF and other applications, three classes of hydrodynamic instability-induced turbulent flows—those arising from the Rayleigh-Taylor, Richtmyer-Meshkov, and Kelvin-Helmholtz instabilities—have attracted much attention. ICF implosions, supernova explosions, and other applications illustrate that these phases of instability growth do not occur in isolation, but instead are connected so that growth in one phase feeds through to initiate growth in a later phase. Essentially, a description of these flows must encompass both the temporal and spatial evolution of the flows from their inception. Hydrodynamic instability will usually start from potentially infinitesimal spatial perturbations, will eventually transition to a turbulent flow, and then will reach a final state of a true multiscale problem. Indeed, this change in the spatial scales can be vast, with hydrodynamic instability evolving from just a few microns to thousands of kilometers in geophysical or astrophysical problems. These instabilities will evolve through different stages before transitioning to turbulence, experiencing linear, weakly, and highly nonlinear states. The challenges confronted by researchers are enormous. The inherent difficulties include characterizing the initial conditions of such flows and accurately predicting the transitional flows. Of course, fully developed turbulence, a focus of many studies because of its major impact on the mixing process, is a notoriously difficult problem in its own right. In this pedagogical review, we will survey challenges and progress, and also discuss outstanding issues and future directions.</description><identifier>ISSN: 1070-664X</identifier><identifier>EISSN: 1089-7674</identifier><identifier>DOI: 10.1063/1.5088745</identifier><identifier>CODEN: PHPAEN</identifier><language>eng</language><publisher>Melville: American Institute of Physics</publisher><subject>70 PLASMA PHYSICS AND FUSION TECHNOLOGY ; Astrophysics ; Evolution ; Explosions ; Fluid dynamics ; Geophysics ; Implosions ; Inertial confinement fusion ; Initial conditions ; Kelvin-Helmholtz instability ; Plasma physics ; Turbulence ; Turbulent flow ; Turbulent mixing</subject><ispartof>Physics of plasmas, 2019-08, Vol.26 (8)</ispartof><rights>Author(s)</rights><rights>2019 Author(s). 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(LLNL), Livermore, CA (United States)</creatorcontrib><title>Turbulent mixing and transition criteria of flows induced by hydrodynamic instabilities</title><title>Physics of plasmas</title><description>In diverse areas of science and technology, including inertial confinement fusion (ICF), astrophysics, geophysics, and engineering processes, turbulent mixing induced by hydrodynamic instabilities is of scientific interest as well as practical significance. Because of the fundamental roles they often play in ICF and other applications, three classes of hydrodynamic instability-induced turbulent flows—those arising from the Rayleigh-Taylor, Richtmyer-Meshkov, and Kelvin-Helmholtz instabilities—have attracted much attention. ICF implosions, supernova explosions, and other applications illustrate that these phases of instability growth do not occur in isolation, but instead are connected so that growth in one phase feeds through to initiate growth in a later phase. Essentially, a description of these flows must encompass both the temporal and spatial evolution of the flows from their inception. Hydrodynamic instability will usually start from potentially infinitesimal spatial perturbations, will eventually transition to a turbulent flow, and then will reach a final state of a true multiscale problem. Indeed, this change in the spatial scales can be vast, with hydrodynamic instability evolving from just a few microns to thousands of kilometers in geophysical or astrophysical problems. These instabilities will evolve through different stages before transitioning to turbulence, experiencing linear, weakly, and highly nonlinear states. The challenges confronted by researchers are enormous. The inherent difficulties include characterizing the initial conditions of such flows and accurately predicting the transitional flows. Of course, fully developed turbulence, a focus of many studies because of its major impact on the mixing process, is a notoriously difficult problem in its own right. In this pedagogical review, we will survey challenges and progress, and also discuss outstanding issues and future directions.</description><subject>70 PLASMA PHYSICS AND FUSION TECHNOLOGY</subject><subject>Astrophysics</subject><subject>Evolution</subject><subject>Explosions</subject><subject>Fluid dynamics</subject><subject>Geophysics</subject><subject>Implosions</subject><subject>Inertial confinement fusion</subject><subject>Initial conditions</subject><subject>Kelvin-Helmholtz instability</subject><subject>Plasma physics</subject><subject>Turbulence</subject><subject>Turbulent flow</subject><subject>Turbulent mixing</subject><issn>1070-664X</issn><issn>1089-7674</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNp90E1PwyAYB_DGaOKcHvwGRE-adEJLKTuaxbdkiZcZvRGg4Fg6mEDVfntpavRg4oFA4MfDwz_LThGcIUjKKzSrIKU1rvayCYJ0ntekxvvDuoY5IfjlMDsKYQMhxKSik-x51XnRtcpGsDWfxr4CbhsQPbfBROMskN5E5Q0HTgPduo8AjG06qRogerDuG--a3vKtkWk_RC5Mm-6pcJwdaN4GdfI9T7On25vV4j5fPt49LK6XucRVFXNM5oKWAhNaaU45obosFBawKItGCw5rXdYSIzFvuJSKQymIolqnI6lV-mc5zc7Gui5Ew4JMzcq1dNYqGRmqyBzVAzof0c67t06FyDau8zb1xYqiLjDCaSR1MSrpXQheabbzZst9zxBkQ7gMse9wk70c7fAiH4L6we_O_0K2a_R_-G_lL4PEihQ</recordid><startdate>20190801</startdate><enddate>20190801</enddate><creator>Zhou, Ye</creator><creator>Clark, Timothy T.</creator><creator>Clark, Daniel S.</creator><creator>Gail Glendinning, S.</creator><creator>Aaron Skinner, M.</creator><creator>Huntington, Channing M.</creator><creator>Hurricane, Omar A.</creator><creator>Dimits, Andris M.</creator><creator>Remington, Bruce A.</creator><general>American Institute of Physics</general><general>American Institute of Physics (AIP)</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><scope>OIOZB</scope><scope>OTOTI</scope><orcidid>https://orcid.org/0000-0002-4207-9875</orcidid><orcidid>https://orcid.org/0000-0002-7213-7538</orcidid><orcidid>https://orcid.org/0000-0002-9369-7040</orcidid><orcidid>https://orcid.org/0000-0001-8353-8305</orcidid><orcidid>https://orcid.org/0000-0002-8600-5448</orcidid><orcidid>https://orcid.org/0000-0003-0327-9724</orcidid><orcidid>https://orcid.org/0000000242079875</orcidid><orcidid>https://orcid.org/0000000293697040</orcidid><orcidid>https://orcid.org/0000000286005448</orcidid><orcidid>https://orcid.org/0000000272137538</orcidid><orcidid>https://orcid.org/0000000183538305</orcidid><orcidid>https://orcid.org/0000000303279724</orcidid></search><sort><creationdate>20190801</creationdate><title>Turbulent mixing and transition criteria of flows induced by hydrodynamic instabilities</title><author>Zhou, Ye ; Clark, Timothy T. ; Clark, Daniel S. ; Gail Glendinning, S. ; Aaron Skinner, M. ; Huntington, Channing M. ; Hurricane, Omar A. ; Dimits, Andris M. ; Remington, Bruce A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c455t-469b83b4685fa8a68f32e4b0232dfba07f37c41b9daccea0cb6e8fffbacfe8873</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>70 PLASMA PHYSICS AND FUSION TECHNOLOGY</topic><topic>Astrophysics</topic><topic>Evolution</topic><topic>Explosions</topic><topic>Fluid dynamics</topic><topic>Geophysics</topic><topic>Implosions</topic><topic>Inertial confinement fusion</topic><topic>Initial conditions</topic><topic>Kelvin-Helmholtz instability</topic><topic>Plasma physics</topic><topic>Turbulence</topic><topic>Turbulent flow</topic><topic>Turbulent mixing</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zhou, Ye</creatorcontrib><creatorcontrib>Clark, Timothy T.</creatorcontrib><creatorcontrib>Clark, Daniel S.</creatorcontrib><creatorcontrib>Gail Glendinning, S.</creatorcontrib><creatorcontrib>Aaron Skinner, M.</creatorcontrib><creatorcontrib>Huntington, Channing M.</creatorcontrib><creatorcontrib>Hurricane, Omar A.</creatorcontrib><creatorcontrib>Dimits, Andris M.</creatorcontrib><creatorcontrib>Remington, Bruce A.</creatorcontrib><creatorcontrib>Lawrence Livermore National Lab. 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(LLNL), Livermore, CA (United States)</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Turbulent mixing and transition criteria of flows induced by hydrodynamic instabilities</atitle><jtitle>Physics of plasmas</jtitle><date>2019-08-01</date><risdate>2019</risdate><volume>26</volume><issue>8</issue><issn>1070-664X</issn><eissn>1089-7674</eissn><coden>PHPAEN</coden><abstract>In diverse areas of science and technology, including inertial confinement fusion (ICF), astrophysics, geophysics, and engineering processes, turbulent mixing induced by hydrodynamic instabilities is of scientific interest as well as practical significance. Because of the fundamental roles they often play in ICF and other applications, three classes of hydrodynamic instability-induced turbulent flows—those arising from the Rayleigh-Taylor, Richtmyer-Meshkov, and Kelvin-Helmholtz instabilities—have attracted much attention. ICF implosions, supernova explosions, and other applications illustrate that these phases of instability growth do not occur in isolation, but instead are connected so that growth in one phase feeds through to initiate growth in a later phase. Essentially, a description of these flows must encompass both the temporal and spatial evolution of the flows from their inception. Hydrodynamic instability will usually start from potentially infinitesimal spatial perturbations, will eventually transition to a turbulent flow, and then will reach a final state of a true multiscale problem. Indeed, this change in the spatial scales can be vast, with hydrodynamic instability evolving from just a few microns to thousands of kilometers in geophysical or astrophysical problems. These instabilities will evolve through different stages before transitioning to turbulence, experiencing linear, weakly, and highly nonlinear states. The challenges confronted by researchers are enormous. The inherent difficulties include characterizing the initial conditions of such flows and accurately predicting the transitional flows. Of course, fully developed turbulence, a focus of many studies because of its major impact on the mixing process, is a notoriously difficult problem in its own right. 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subjects | 70 PLASMA PHYSICS AND FUSION TECHNOLOGY Astrophysics Evolution Explosions Fluid dynamics Geophysics Implosions Inertial confinement fusion Initial conditions Kelvin-Helmholtz instability Plasma physics Turbulence Turbulent flow Turbulent mixing |
title | Turbulent mixing and transition criteria of flows induced by hydrodynamic instabilities |
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