Numerics for iles: The ppm compressible gas dynamics scheme
Numerics for iles: The ppm compressible gas dynamics scheme
复制标题
iles 的数值:ppm 可压缩气体动力学方案
DOI:
10.1017/9780511618604.007
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发表时间:
2007
期刊:
影响因子:
--
通讯作者:
P. Woodward
中科院分区:
文献类型:
--
作者:
P. Woodward
The development of the PPM gas dynamics scheme grew out of earlier work in the mid 1970s with Bram van Leer on the MUSCL scheme [1-3]. At Livermore, in the late 1970s, the use of moments of the internal cell distributions which makes MUSCL resemble finite element schemes was abandoned for reasons of compatibilit with Livermore production codes. In order to recapture the accuracy of MUSCL while using only cell averages as the fundamental data, PPM, the Piecewise-Parabolic Method, was developed in collaboration with Phil Colella [4-7]. Over the last 20 years, PPM has evolved considerably in order to address shortcomings of the scheme as it was laid out in [6] and [7]. PPM has also been extended to MHD [8-18] in collaboration with Wenlong Dai, applied extensively to the study of jets and supersonic shear layers [19-25] in collaboration with Karl-Heinz Winkler, Steve Hodson, Norm Zabusky, Jeffrey Pedelty, and Gene Bassett, used to simulate flow in disk galaxies and around stationary and moving objects [26-28] in collaboration with B. Kevin Edgar, applied extensively to convection and turbulence problems [29-56] in collaboration with David Porter, Annick Pouquet, and Igor Sytine (see later article in this volume), and most recently extended to multifluid gas dynamics problems. Implicit versions of the method have also been worked on [59-66] in collaboration with Bruce Fryxell and Karl-Heinz Winkler and, later, Wenlong Dai. A cell-based AMR version of PPM has been under development [see 67], in collaboration with Dennis Dinge. The PPM code has been implemented on many parallel computing systems, including some with thousands of processors [68-69; 54-55]. Versions of the PPM gas dynamics scheme have become incorporated into 3 community codes aimed at astrophysics applications: FLASH [refs], ENZO [refs], and VH-1 [refs].Because the several improvements and modifications to the 1984 or 1986 versions of PPM in the literature have not been published, we here lay out the present scheme for simple, single-fluid, ideal gas dynamics from start to finish. Then selected results on homogeneous, isotropic, compressible turbulence in a cubical, periodic domain are briefly reviewed.