Turbulence modeling of a wave boundary layer on a rough bottom

Ahmad Sana, Hitoshi Tanaka, Suntoyo

研究成果: Conference article査読

1 被引用数 (Scopus)

抄録

The original k-ω model by Wilcox (WL) and two versions of blended k-ω/k-ε model, namely; Baseline (BSL) model and Shear Stress Transport (SST) model were applied to the wave boundary layers on a rough bottom. The model results were compared with the available experimental data. The three models show good agreement with the experimental data for velocity, turbulent kinetic energy and Reynolds stress. The SST model is superior in predicting shear velocity in one of the experimental cases. However, a detailed comparison revealed that SST model underestimates the friction factor for lower values of particle excursion length to roughness ratio, whereas, WL and BSL models showed good agreement with the experimental data. The results of this study would be useful for practicing engineers and researchers in choosing an appropriate model for calculating bottom shear stress.

本文言語English
ページ(範囲)1572-1582
ページ数11
ジャーナルProceedings of the Coastal Engineering Conference
出版ステータスPublished - 2009 12 1
イベント31st International Conference on Coastal Engineering, ICCE 2008 - Hamburg, Germany
継続期間: 2008 8 312008 9 5

ASJC Scopus subject areas

  • 土木構造工学
  • 海洋工学
  • 海洋学

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