Posteriori error determination and grid adaptation for AMR and ALE computational fluid dynamics

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Description

We discuss grid adaptation for application to AMR and ALE codes. Two new contributions are presented. First, a new method to locate the regions where the truncation error is being created due to an insufficient accuracy: the operator recovery error origin (OREO) detector. The OREO detector is automatic, reliable, easy to implement and extremely inexpensive. Second, a new grid motion technique is presented for application to ALE codes. The method is based on the Brackbill-Saltzman approach but it is directly linked to the OREO detector and moves the grid automatically to minimize the error.

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4 p.

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Lapenta, G. M. (Giovanni M.) January 1, 2002.

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Description

We discuss grid adaptation for application to AMR and ALE codes. Two new contributions are presented. First, a new method to locate the regions where the truncation error is being created due to an insufficient accuracy: the operator recovery error origin (OREO) detector. The OREO detector is automatic, reliable, easy to implement and extremely inexpensive. Second, a new grid motion technique is presented for application to ALE codes. The method is based on the Brackbill-Saltzman approach but it is directly linked to the OREO detector and moves the grid automatically to minimize the error.

Physical Description

4 p.

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  • Submitted to: Computational Fluid Dynamics, Sydney, 15-19 July 2002

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  • Report No.: LA-UR-02-4512
  • Grant Number: none
  • Office of Scientific & Technical Information Report Number: 976232
  • Archival Resource Key: ark:/67531/metadc934387

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • January 1, 2002

Added to The UNT Digital Library

  • Nov. 13, 2016, 7:26 p.m.

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  • Dec. 12, 2016, 6:54 p.m.

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Lapenta, G. M. (Giovanni M.). Posteriori error determination and grid adaptation for AMR and ALE computational fluid dynamics, article, January 1, 2002; United States. (digital.library.unt.edu/ark:/67531/metadc934387/: accessed May 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.