UNI-MB - logo
UMNIK - logo
 
(UM)
  • Boundary element method for thermal flows using k-▫$epsilon$▫ turbulence models
    Ramšak, Matjaž ; Škerget, Leopold
    Purpose - This paper aims to develop a multidomain boundary element method (BEM) for modeling 2D complex turbulent thermal flow using low Reynolds two-equation turbulence models. ... Design/methodology/approach - The integral boundary domain equations are discretised using mixed boundary elements and a multidomain method also known as a subdomain technique. The resulting system matrix is an overdetermined, sparse block banded and solved using a fast iterative linear least squares solver. Findings - The simulation of a turbulent flow over a backward step is in excellent agreement with the finite volume method using the same turbulent model. A grid consisting of over 100,000 elements could be solved in the order of a few minutes using a 3.0 GhzP4 and 1 GB memory indicating good efficiency. Originality/value - The paper shows, for the first time, that the BEM is applicable to thermal flows using k-▫$\epsilon$▫.
    Source: Selected papers from the International Scientific Conference on Numerical Heat Transfer 2005 (str. 514-532)
    Type of material - conference contribution
    Publish date - 2008
    Language - english
    COBISS.SI-ID - 12301846

    Link(s):

    http://www.emeraldinsight.com/10.1108/09615530810853709
    Digital Library of the University of Maribor – DLUM
    DOI

Shelf entry