Improvements to SOIL: An Eulerian hydrodynamics code Page: 3 of 20
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IMPROVEMENTS TO SOIL (AN EULERIAN HYDRODYNAMICS CODE)
Cecil G. Davis
Possible improvements to SOIL, an Eulerian hydrodynamics
code that can do coupled radiation diffusion and strength of
materials, are presented in th.is report. Our research is based on
the inspection of other Eulerian codes and theoretical reports on
hydrodynamics. Several conclusions from the present study suggest
that some improvements are in order, such as second-order advec-
tion, adaptive meshes, and speedup of the code by vectorization
SOIL is an Eulerian hydrodynamics code with provisions to do coupled
radiation diffusion and strength of materials. In this report we discuss
possible improvements to SOIL based on the inspection of a variety of other
Eulerian codes and theoretical reports on hydrodynamics. Discussions of
improvements in the other areas of computational need, such as the radiation
transport and material strength, will be reserved for future reports. Our
general conclusions from this study are that improvements such as second-order
advection, adaptive meshes and speed up of the code by vectorization and/or
multitasking are in order. To add the more sophisticated aspects of turbulent
diffusion and Gudonov shock treatments for instance would be unnecessary in
our present application of the code.
In Section II we discuss the present algorithms in SOIL and their
limitations. In Sections III to VII, we describe new advection schemes,
strong shock treatments, adaptive meshes, mixed cell treatments, and viscosity
consecutively. Section VIII contains a summary and our recommendations for
improvements in the hydrodynamic portion of SOIL.
"SOIL, "Splitting in Eulerian Coordinates" property of C3 (Computer Code Consultants) Los Alamos, NM
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Davis, C.G. Improvements to SOIL: An Eulerian hydrodynamics code, report, April 1, 1988; New Mexico. (https://digital.library.unt.edu/ark:/67531/metadc1064690/m1/3/?rotate=270: accessed April 23, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.