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作者:Milo R. Dorr , Phillip Colella , Mikhail A. Dorf ...
来源:[J].Journal of Computational Physics(IF 2.138), 2018, Vol.373, pp.605-630
摘要:Abstract(#br)We describe a new spatial discretization of a continuum gyrokinetic Vlasov model in axisymmetric tokamak edge plasma geometries. The geometries are represented using a multiblock decomposition in which logically distinct blocks are smoothly mapped from rectangular co...
作者:S. Günther , N. R. Gauger , J. B. Schroder
来源:[J].Optimization Methods and Software(IF 0.683), 2019, Vol.34 (6), pp.1306-1321
摘要:ABSTRACT(#br)This paper presents a non-intrusive framework for integrating existing unsteady partial differential equation (PDE) solvers into a parallel-in-time simultaneous optimization algorithm. The time-parallelization is provided by the non-intrusive software library XB...
作者:Gerald W. Hedstrom
来源:[J].Journal of Nuclear Science and Technology(IF 1.033), 2017, Vol.54 (10), pp.1095-1117
摘要:ABSTRACT(#br)This paper discusses several methods of interpolation of data for tables of energy distributions for particles emitted by nuclear reactions. The methods are also applicable to angular distributions. Our primary interest is in interpolation with respect to the energy ...
作者:Marius Millot , Shuai Zhang , Dayne E. Fratanduono ...
来源:[J].Geophysical Research Letters(IF 3.982), 2020, Vol.47 (4), pp.n/a-n/a
摘要:Abstract(#br)Understanding giant impacts requires accurate description of how extreme pressures and temperatures affect the physical properties of the constituent materials. Here, we report shock experiments on two polymorphs of MgSiO 3 : enstatite and bridgmanite (perovskit...
作者:Joshua A. Hammons , Michael H. Nielsen , Michael Bagge‐Hansen ...
来源:[J].Propellants, Explosives, Pyrotechnics(IF 1.245), 2020, Vol.45 (2), pp.347-355
摘要:Abstract(#br)Carbon particulates generated during detonation depend upon high explosive type, composition, and detonation conditions. Although explosive composition greatly affects particulates, the focus of this work is on how detonation geometries that induce much higher t...
作者:Peter Beiersdorfer , Natalie Hell , Dmytro Panchenko ...
来源:[J].X‐Ray Spectrometry(IF 1.546), 2020, Vol.49 (1), pp.21-24
摘要:We report a measurement of the two X‐ray transitions that proceed from the ( 1 s 2 2 s 2 2 p 1 / 2 5 3 d 3 / 2 ) J = 1 and (1 s 22 s 1/22 p 63 p 1/2) J = 1 upper levels to the (1 s 22 s 22 p 6) J = 0 ground level in neonlike Eu53+ ...
作者:Will P. Bassett , Belinda P. Johnson , Dana D. Dlott
来源:[J].Propellants, Explosives, Pyrotechnics(IF 1.245), 2020, Vol.45 (2), pp.338-346
摘要:Abstract(#br)Initial hot spot temperatures and temperature evolutions for 4 polymer‐bound explosives under shock compression by laser‐driven flyer plates at speeds from 1.5–4.5 km s−1 are presented. A new averaging routine allows for improved signal to noise ...
作者:Will P. Bassett , Belinda P. Johnson , Lawrence Salvati III ...
来源:[J].Propellants, Explosives, Pyrotechnics(IF 1.245), 2020, Vol.45 (2), pp.223-235
摘要:Abstract(#br)We describe studies of shock initiation and shock‐to‐detonation transitions in energetic materials using a tabletop shock compression microscope with nanosecond time resolution and micrometer spatial resolution. Planar input shocks with durations of 4–20 ns...
作者:H. Keo Springer , Will P. Bassett , Sorin Bastea ...
来源:[J].Propellants, Explosives, Pyrotechnics(IF 1.245), 2020, Vol.45 (2), pp.330-337
摘要:Abstract(#br)For the first time, mesoscale simulations of shocked explosives are validated with hot spot temperature data. Following recent experiments, we simulate a 25 μm aluminum flyer impacting a powder bed of octahydro‐1,3,5,7‐tetranitro‐1,3,5,7‐tetrazocine (HMX) w...
作者:J. O. Wenegrat , R. S. Arthur
来源:[J].Geophysical Research Letters(IF 3.982), 2018, Vol.45 (24), pp.13,505-13,512
摘要:Abstract(#br)Submesoscale sea surface temperature fronts are ubiquitous throughout much of the global ocean; however, the response of the marine atmospheric boundary layer (MABL) to the ocean submesoscale is not well understood. In this manuscript large‐eddy simulation is us...

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