Deceleration-stage Rayleigh–Taylor growth in a background magnetic field studied in cylindrical and Cartesian geometries

作     者：C.Samulski B.Srinivasan M.J.-E.Manuel R.Masti J.P.Sauppe J.Kline C.Samulski;B.Srinivasan;M.J.-E.Manuel;R.Masti;J.P.Sauppe;J.Kline

作者机构：Virginia Polytechnic Institute and State UniversityBlacksburgVirginia 24060USA General AtomicsP.O.Box 85608San DiegoCalifornia 92186USA Los Alamos National LaboratoryP.O.Box 1663Los AlamosNew Mexico 87545USA 

出 版 物：《Matter and Radiation at Extremes》 (极端条件下的物质与辐射（英文）)

年 卷 期：2022年第7卷第2期

页      面：41-52页

核心收录：

学科分类：07[理学] 0701[理学-数学] 0702[理学-物理学] 070101[理学-基础数学] 

基　　金：This work was supported by the Office of Science of the U.S.Department of Energy under Award Nos.DE-SC0018993,DE-SC0016515,and DE-SC0022319 the High Energy Density Laboratory Plasmas subprogram of the Fusion Energy Sciences program and under Award No.DE-SC0020055 by the Financial Assistance Program This work was also supported through a Los Alamos National Laboratory subcontract to Virginia Tech under Contract No.463281 

主　　题：FLASH cylindrical magnetic 

摘      要：Experiments have identified the Rayleigh–Taylor(RT)instability as one of the greatest obstacles to achieving inertial confinement ***,mitigation strategies to reduce RT growth and fuel–ablator mixing in the hotspot during the deceleration phase of the implosion are of great *** this work,the effect of seed magnetic fields on deceleration-phase RT growth are studied in planar and cylindrical geometries under conditions relevant to the National Ignition Facility(NIF)and Omega *** magnetohydrodynamic(MHD)and resistive-MHD capabilities of the FLASH code are used to model imploding cylinders and planar blast-wave-driven *** target and laser parameters are presented that suggest the occurrence of morphological differences in late-time RT evolution in the cylindrical NIF case and a measurable difference in spike height of single-mode growth in the planar NIF *** results of this study indicate the need for target designs to utilize an RT-unstable foam–foam interface in order to achieve sufficient magnetic field amplification to alter RT *** FLASH simulations are used to study these magnetic field effects in both resistive and ideal MHD.