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Dealing with some numerical instabilities in reciprocating compressor simulation program.

Author(s) : ZELEK G., CYKLIS P.

Summary

The paper deals with a problem of numerical instabilities that can be observed in the results of the simulation of compression process in a cylinder of a reciprocating compressor. Especially in case of very efficient valves and low pressure difference across the valve, the simulation may result in a non-physical scattering of mass exchange or pressure traces. The aim of this paper is to identify the origin of those instabilities. Also a short discussion on its eventual consequences is provided along with possible precautions that can be taken to mitigate the problem.

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Pages: 2009-6

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Details

  • Original title: Dealing with some numerical instabilities in reciprocating compressor simulation program.
  • Record ID : 2009-2313
  • Languages: English
  • Source: Compressors 2009: 7th International Conference on Compressors and Coolants
  • Publication date: 2009/09/02

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