A new turbulence model for near-wall natural convection

W. Xu, Q. Chen, F. T.M. Nieuwstadt

Research output: Journal article publicationJournal articleAcademic researchpeer-review

64 Citations (Scopus)

Abstract

Current turbulence models for simulating natural convection require too much computation time or do not give sufficiently accurate results. A one-equation near-wall model is developed that incorporates the use of direct numerical simulation data (Ra=5.4×105) to remedy these shortcomings. The use of this near-wall model along with the standard k-ε model for the outer-wall region, yields good predictions for mean flow and turbulence in natural convection and significantly reduces computational cost.

Original languageEnglish
Pages (from-to)3161-3176
Number of pages16
JournalInternational Journal of Heat and Mass Transfer
Volume41
Issue number21
DOIs
Publication statusPublished - Nov 1998

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

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