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Resonant Instabilities in Astrophysical and Laboratory Dusty Plasmas.
Resonant Instabilities in Astrophysical and Laboratory Dusty Plasmas.
상세정보
- 자료유형
- 학위논문
- Control Number
- 0017163547
- International Standard Book Number
- 9798384466680
- Dewey Decimal Classification Number
- 530
- Main Entry-Personal Name
- Israeli, Ben Yehuda.
- Publication, Distribution, etc. (Imprint
- [S.l.] : Princeton University., 2024
- Publication, Distribution, etc. (Imprint
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- Physical Description
- 136 p.
- General Note
- Source: Dissertations Abstracts International, Volume: 86-04, Section: B.
- General Note
- Advisor: Bhattacharjee, Amitava.
- Dissertation Note
- Thesis (Ph.D.)--Princeton University, 2024.
- Summary, Etc.
- 요약The interaction of dust grains with plasmas is of substantial interest in both astrophysical and laboratory contexts. Dust is ubiquitous in astrophysical environments, playing a significant role in the dynamics and chemistry of systems such as molecular clouds, stellar winds, and supernova ejecta. The coupling of dust to surrounding media via drag and electromagnetic interactions produces a complex range of instabilities and other phenomena. In the laboratory, the large mass and size of dust particles (compared to that of ions and electrons) produces dynamics at comparably large length and time scales, providing a particularly accessible window into phenomena such as waves, shocks, and instabilities, and the peculiar physics of charged dust grains produces various unique phenomena of interest in their own right.The first segment of this work intends to bridge between the study of laboratory and astrophysical dusty plasmas by drawing parallels between various dusty plasma instabilities, namely resonant drag instabilities (RDIs), two-stream instabilities, and the filamentary ionization instability. RDIs are a recently introduced class of astrophysical instability produced by the resonant interaction of streaming dust with a wave in a background fluid. The linear theory of these instabilities can be described perturbatively by the splitting of defective eigenvalues. It is shown in this work that this approach should apply generally to a range of dusty plasma instabilities due to the ubiquitous presence of strong scale separation between the dust and other species. Further, it is shown that this overlap in the underlying mathematics of these instabilities corresponds to an overlap in their regimes of relevance, with consequences for astrophysical phenomena and for laboratory astrophysics.The second segment of this work focuses on the nonlinear theory of RDIs. We present a model of the turbulent saturation of the acoustic RDI, supported by numerical simulations. It is shown that the saturation process progresses from small scale to large, with a balance occurring between turbulent eddy turnover and instability growth at the forcing scale. The resulting turbulent cascade is strongly anisotropic at large scale, dependent upon dust mass fraction and streaming velocity, and possibly approaches universal isotropic behavior at smaller scales.
- Subject Added Entry-Topical Term
- Plasma physics.
- Subject Added Entry-Topical Term
- Astrophysics.
- Subject Added Entry-Topical Term
- Physics.
- Subject Added Entry-Topical Term
- Electromagnetics.
- Index Term-Uncontrolled
- Dusty plasma
- Index Term-Uncontrolled
- Interstellar medium
- Index Term-Uncontrolled
- Ionization instability
- Index Term-Uncontrolled
- Resonant drag instability
- Index Term-Uncontrolled
- Turbulence
- Added Entry-Corporate Name
- Princeton University Astrophysical Sciences-Plasma Physics Program
- Host Item Entry
- Dissertations Abstracts International. 86-04B.
- Electronic Location and Access
- 로그인을 한후 보실 수 있는 자료입니다.
- Control Number
- joongbu:655675
MARC
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■020 ▼a9798384466680
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■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a530
■1001 ▼aIsraeli, Ben Yehuda.▼0(orcid)0000-0002-1815-2876
■24510▼aResonant Instabilities in Astrophysical and Laboratory Dusty Plasmas.
■260 ▼a[S.l.]▼bPrinceton University. ▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a136 p.
■500 ▼aSource: Dissertations Abstracts International, Volume: 86-04, Section: B.
■500 ▼aAdvisor: Bhattacharjee, Amitava.
■5021 ▼aThesis (Ph.D.)--Princeton University, 2024.
■520 ▼aThe interaction of dust grains with plasmas is of substantial interest in both astrophysical and laboratory contexts. Dust is ubiquitous in astrophysical environments, playing a significant role in the dynamics and chemistry of systems such as molecular clouds, stellar winds, and supernova ejecta. The coupling of dust to surrounding media via drag and electromagnetic interactions produces a complex range of instabilities and other phenomena. In the laboratory, the large mass and size of dust particles (compared to that of ions and electrons) produces dynamics at comparably large length and time scales, providing a particularly accessible window into phenomena such as waves, shocks, and instabilities, and the peculiar physics of charged dust grains produces various unique phenomena of interest in their own right.The first segment of this work intends to bridge between the study of laboratory and astrophysical dusty plasmas by drawing parallels between various dusty plasma instabilities, namely resonant drag instabilities (RDIs), two-stream instabilities, and the filamentary ionization instability. RDIs are a recently introduced class of astrophysical instability produced by the resonant interaction of streaming dust with a wave in a background fluid. The linear theory of these instabilities can be described perturbatively by the splitting of defective eigenvalues. It is shown in this work that this approach should apply generally to a range of dusty plasma instabilities due to the ubiquitous presence of strong scale separation between the dust and other species. Further, it is shown that this overlap in the underlying mathematics of these instabilities corresponds to an overlap in their regimes of relevance, with consequences for astrophysical phenomena and for laboratory astrophysics.The second segment of this work focuses on the nonlinear theory of RDIs. We present a model of the turbulent saturation of the acoustic RDI, supported by numerical simulations. It is shown that the saturation process progresses from small scale to large, with a balance occurring between turbulent eddy turnover and instability growth at the forcing scale. The resulting turbulent cascade is strongly anisotropic at large scale, dependent upon dust mass fraction and streaming velocity, and possibly approaches universal isotropic behavior at smaller scales.
■590 ▼aSchool code: 0181.
■650 4▼aPlasma physics.
■650 4▼aAstrophysics.
■650 4▼aPhysics.
■650 4▼aElectromagnetics.
■653 ▼aDusty plasma
■653 ▼aInterstellar medium
■653 ▼aIonization instability
■653 ▼aResonant drag instability
■653 ▼aTurbulence
■690 ▼a0759
■690 ▼a0596
■690 ▼a0605
■690 ▼a0607
■71020▼aPrinceton University▼bAstrophysical Sciences-Plasma Physics Program.
■7730 ▼tDissertations Abstracts International▼g86-04B.
■790 ▼a0181
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17163547▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
