Hydrodynamic studies of high gain shock ignition targets: effect of low- to intermediate-mode asymmetries

Atzeni, S.; Schiavi, A.; Antonelli, L.; Serpi, Arianna

doi:10.1140/epjd/e2019-100317-5

Cited by 9 publications

(9 citation statements)

References 45 publications

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“…where n is RTI growth rate and B = δh 2 / γ is the Bond number. Lacking nano-structured porous layer (k → ∞ or σ → 0), Equation 23 converts to the following equation: 2019)" [14] with h = 870 μm, "Betti and Hurricane (2016)" [15] with h = 422 μm and "Craxton et al ( 2015)" [16] with h = 1663 μm. As a result, by applying nano-structured porous layer at the ablation front of them, the changes in RTI growth rate at the ablation front of these fuel targets have been investigated analytically; So that lacking nanostructured porous layer, RTI growth rate is indicated in Fig.…”

Section: Dispersion Relation Lackingmentioning

confidence: 99%

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Rayleigh-Taylor Kararsızlığının Büyüme Hızına Manyetik Alanın Etkisi Nano Yapılı Gözenekli Kaplamaların Kullanılması Eylemsiz Hapsedilme Füzyon Yakıt Hedeflerinde

Malekpour

Ghasemizad

2023

Politeknik Dergisi

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Son yıllarda, atalet önlerine nanoyapılı gözenekli astarlar uygulayarak eylemsiz hapsetme füzyonu (ICF) hedeflerinde hidrodinamik kararlılığa ulaşmak bilim adamları için özel bir öneme sahip olmuştur. Hidrodinamik kararsızlıklar, en önemlisi Rayleigh-Taylor kararsızlığıdır (RTI), birçok fiziksel olayda önemli bir rol oynar. Böyle, bu istikrarsızlıkların büyüme hızının nasıl düşürüleceği, ICF yakıt hedeflerinde önemli bir amaçtır. Bu çalışmada, RTI büyüme hızının azaltılması çeşitli füzyon yakıtı hedefleri için iki aşamada incelenir: Birinci, güçlü bir manyetik alanın yokluğunda ablasyon önlerine farklı nanoyapılı gözenekli astarların uygulanmasının RTI büyüme hızının azalmasına neden olduğu belirtilmektedir ve ikinci, bu hedeflerin ablatif yüzeyine uygulanan manyetik alana eşlik eden ablasyon cephesinde çeşitli nano yapılı gözenekli astarların kullanılmasının, RTI büyüme hızının daha fazla azalmasına yol açtığı gösterilmiştir. Bu iki fazın her ikisinde de, RTI büyüme hızı, koruma denklemleri, sınır koşulları ve yaklaşık yöntemler kullanılarak analitik olarak elde edilir ve nanoyapılı gözenekli kaplamaların uygulanması ve güçlü bir manyetik alan uygulanmasının RTI büyüme hızını azaltacağı belirtilmektedir.

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Section: Dispersion Relation Lackingmentioning

confidence: 99%

“…3-10 for the above mentioned fuel targets, different types of these porous layers mentioned in Table1, α = 0.1 and B=0.04. The acquired porous parameters for different nano-structured porous linings applied for various fusion fuel targets[14][15][16][17].…”

mentioning

confidence: 99%

Rayleigh-Taylor Kararsızlığının Büyüme Hızına Manyetik Alanın Etkisi Nano Yapılı Gözenekli Kaplamaların Kullanılması Eylemsiz Hapsedilme Füzyon Yakıt Hedeflerinde

Malekpour

Ghasemizad

2023

Politeknik Dergisi

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“…This approach was suggested by Shcherbakov in the 1980s [111] and was revisited recently [112,113]. For the shock ignition approach [114], a stabilizing effect of the return ignitor shock was predicted in the stagnation phase [115,116] but has not yet been investigated further experimentally [117]. Whereas we have emphasized above the detrimental effects of hydrodynamics instabilities and mix for ICF, let us now underline some fascinating results acquired recently in the context of basic and discovery science experiments.…”

Section: Hydrodynamics Instabilities In Inertial Confinement Fusionmentioning

confidence: 99%

Recent progress in quantifying hydrodynamics instabilities and turbulence in inertial confinement fusion and high-energy-density experiments

Casner

2020

Phil. Trans. R. Soc. A.

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Since the seminal paper of Nuckolls triggering the quest of inertial confinement fusion (ICF) with lasers, hydrodynamic instabilities have been recognized as one of the principal hurdles towards ignition. This remains true nowadays for both main approaches (indirect drive and direct drive), despite the advent of MJ scale lasers with tremendous technological capabilities. From a fundamental science perspective, these gigantic laser facilities enable also the possibility to create dense plasma flows evolving towards turbulence, being magnetized or not. We review the state of the art of nonlinear hydrodynamics and turbulent experiments, simulations and theory in ICF and high-energy-density plasmas and draw perspectives towards in-depth understanding and control of these fascinating phenomena. This article is part of a discussion meeting issue ‘Prospects for high gain inertial fusion energy (part 2)’.

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“…Issue (1) demands using UV lasers with pulses of intensity around 10 15 W/cm 2 ; issue (2) calls for carefully time-shaped laser pulses and no preheating of the fuel prior to final implosion stagnation. Concerning issues (3) and (4) Atzeni has shown simulations illustrating the deleterious effects of irradiation non uniformities (Atzeni et al 2011(Atzeni et al , 2019 and of RTI , and conditions to be met to reduce them. He pointed out that in spite of the huge scale difference, there are several similarities between RTI in laser inertial fusion (Haan et al 2004) and supernova explosions (Joggerst et al 2009).…”

Section: Imp̃1mentioning

confidence: 99%

Plasma physics and astrophysics: retrospects, state-of-the art, and prospects

Nigro

Пегораро

Valentini

2020

Rend. Fis. Acc. Lincei

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Within the special issue "Classical and quantum plasmas: matter under extreme conditions" a series of papers are included that were presented at the international workshop "Plasma Physics and Astrophysics up to 2020 and beyond". This meeting was held on October 7th-8th 2019 at the Physics Department of the Università della Calabria in Rende (Italy) and was organised by the Physics Department "Astrophysics, Geophysics and Plasma Group" in connection with the celebration of Pierluigi Veltri's 70th birthday. The goal of this interdisciplinary workshop was to review some of the main achievements in plasma physics in the last five decades from laboratory to space and astrophysical plasmas and to discuss future developments. It was attended by experimentalists, theoreticians and by scientists involved in numerical plasma modelling with the aim of promoting the exchange of ideas and collaborations between different communities working on plasma physics in different contexts. The participants discussed fundamental physics aspects of fluid and plasma turbulence, of magnetic field line reconnection, of shock wave dynamics and of kinetic and nonlinear plasma phenomena highlighting new results and novel approaches, as well as exchanging ideas between different branches of plasma physics.

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Hydrodynamic studies of high gain shock ignition targets: effect of low- to intermediate-mode asymmetries

Cited by 9 publications

References 45 publications

Rayleigh-Taylor Kararsızlığının Büyüme Hızına Manyetik Alanın Etkisi Nano Yapılı Gözenekli Kaplamaların Kullanılması Eylemsiz Hapsedilme Füzyon Yakıt Hedeflerinde

Rayleigh-Taylor Kararsızlığının Büyüme Hızına Manyetik Alanın Etkisi Nano Yapılı Gözenekli Kaplamaların Kullanılması Eylemsiz Hapsedilme Füzyon Yakıt Hedeflerinde

Recent progress in quantifying hydrodynamics instabilities and turbulence in inertial confinement fusion and high-energy-density experiments

Plasma physics and astrophysics: retrospects, state-of-the art, and prospects

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