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An Improved Turbulence Closure Model Using Cabot’s Near-Wall Function

[+] Author Affiliations
H. Y. Tan, H. N. Lim

Defence Science and Technology Agency, Singapore

E. Y. K. Ng

Nanyang Technological University, Singapore

D. Choi

United Technology Research Centre, East Hartford, CT

Paper No. GT2002-30679, pp. 1249-1255; 7 pages
  • ASME Turbo Expo 2002: Power for Land, Sea, and Air
  • Volume 5: Turbo Expo 2002, Parts A and B
  • Amsterdam, The Netherlands, June 3–6, 2002
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 0-7918-3610-X | eISBN: 0-7918-3601-0
  • Copyright © 2002 by ASME


The Wall Function for large eddy simulation (LES) proposed by Cabot is extended to the turbulence closure models. Predicted results are discussed and compared with well-documented experimental results. Although complete agreement with experiment is not yet achieved for some cases, it shows that the model with Cabot’s Wall Function significantly reduces the computing resources (CPU & storage) required where the first off-wall velocity nodes are located at 60 < y+ < 180; and in most cases improves predicted results.

Copyright © 2002 by ASME
Topics: Turbulence



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