Direct numerical simulation of three-dimensional flow and augmented heat transfer in a grooved channel

Miles Greiner, Greg Spencer, Paul F. Fischer

Research output: Contribution to journalArticle


Direct numerical simulations of three-dimensional destabilized flow and augmented convective heat transfer in a transversely-grooved channel are presented for the Reynolds number range 140 < Re < 2000. These calculations employ the spectral element technique. Multiple flow transitions are documented as the Reynolds number is increased, from steady two-dimensional flow through broad-banded unsteady three-dimensional mixing. Three-dimensional simulations correctly predict the Reynolds-number-independent friction factor behavior of this flow and quantifies its heat transfer to within 20% of measured values. Two-dimensional simulations, however, incorrectly predict laminar-like friction factor and heat transfer behaviors.

Original languageEnglish (US)
Pages (from-to)125-131
Number of pages7
JournalAmerican Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD
StatePublished - Dec 1 1996
Externally publishedYes


ASJC Scopus subject areas

  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

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