User Manual for EXODUS II Mesh Converter
User Manual for EXODUS II Mesh Converter
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EXODUS II 网格转换器用户手册
DOI：
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发表时间：
2014
期刊：
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通讯作者：
C. W. Attaway
中科院分区：
文献类型：
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作者：
E. Shemon;C. W. Attaway
已开发了一个网格转换程序，用于将EXODUS II格式的有限元网格转换为Argonne国家实验室开发的Proteus-SN中子学程序所使用的ASCII格式。本手册包含网状转换器的说明、使用示例和方法。Proteus-SN中子学程序需要几种可接受格式(ascii、nemesh、pntesh或bgpesh)之一的有限元网格输入文件。这些文件格式都不是由传统的有限元文件建模代码直接产生的，因此需要进行格式转换。目前，大多数有限元网格是使用Sandia国家实验室开发的CUBIT程序编制的。Cubit可以以各种格式导出有限元网格，包括可移植的Exodus II格式。Exodus II文件是具有NetCDF数据存储结构的二进制文件，旨在处理大型面向对象的数组。虽然存在专门的ExoDus II应用程序编程接口(API)来查询ExoDus II数据，但通用的NetCDF API也可以用于相同的目的。所描述的程序改进了以前的灵活性和性能有限的工具。值得注意的是，新的转换器成功地转换了使用较新版本的Cubit(版本13+)生成的Exodus II文件，并且对网格大小(顶点或元素的总数)没有限制。转换器使用NetCDF API命令查询Exodus II文件中的数据，读取文件中的数据，对其进行重新组织，并将其写入Proteus-SN使用的ASCII文件格式。Exodus II网状转换器用户手册，8月15日2014年2期目录摘要.......................................................................................................................................列表1
A mesh conversion program has been developed to convert EXODUS II-formatted finite element meshes to the ascii format used by the PROTEUS-SN neutronics code developed at Argonne National Laboratory. This manual contains instructions, usage examples, and methodology for the mesh converter. The PROTEUS-SN neutronics code requires a finite element mesh input file in one of several accepted formats (ascii, nemesh, pntmesh, or bgpmesh). None of these file formats are directly produced by conventional finite element file modeling codes, therefore format conversion is required. Currently, most finite element meshes are prepared using the Cubit program developed by Sandia National Laboratory. Cubit can export finite element meshes in a variety of formats including the portable EXODUS II format. EXODUS II files are binary files with NetCDF data storage structures designed to handle large object-oriented arrays. While a specialized EXODUS II application programming interface (API) exists to query EXODUS II data, the general NetCDF API can also be used for the same purpose. The described program improves upon a previous tool which had limited flexibility and performance. Notably, the new converter successfully converts EXODUS II files generated with more recent versions of Cubit (version 13+) and has no limitation on mesh size (total number of vertices or elements). The converter queries data from the EXODUS II file using NetCDF API commands, reads the data in the file, reorganizes it, and writes it to the ascii file format used by PROTEUS-SN. User Manual for EXODUS II Mesh Converter August 15, 2014 2 TABLE OF CONTENTS Abstract ............................................................................................................................................1 Table of