Improvement of the pressure solver in KIVA

Jason Smith, Aytekin Gel, Ismail Celik

Research output: Contribution to conferencePaper

Abstract

The KIVA family of codes (Amsden et al., 1989,1993,1997) are being used by many researchers for internal combustion engine simulation. For these codes to continue to be useful, improvements need to be made to make them more efficient. One of the most CPU intensive parts of these codes is the pressure solver. Improvement in the convergence of the pressure solver could have a significant effect on the performance of the overall code. This paper presents the theory behind the matrix solution procedure utilized by KIVA. A different approach to preconditioning is then presented. When implemented, it is shown that the overall CPU time required to perform a simulation is reduced by up to 20% for pressure dominated three-dimensional simulations. This is accomplished without an increase in memory allocation.

Original languageEnglish (US)
DOIs
StatePublished - Dec 1 1999
Externally publishedYes
EventInternational Congress and Exposition - Detroit, MI, United States
Duration: Mar 1 1999Mar 4 1999

Other

OtherInternational Congress and Exposition
CountryUnited States
CityDetroit, MI
Period3/1/993/4/99

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ASJC Scopus subject areas

  • Automotive Engineering
  • Safety, Risk, Reliability and Quality
  • Pollution
  • Industrial and Manufacturing Engineering

Cite this

Smith, J., Gel, A., & Celik, I. (1999). Improvement of the pressure solver in KIVA. Paper presented at International Congress and Exposition, Detroit, MI, United States. https://doi.org/10.4271/1999-01-1187