WIT Press

Numerical Investigation On Irregular Wave Bottom Boundary Layer Under Laminar Motion

Price

Free (open access)

Paper DOI

10.2495/CE990191

Volume

43

Pages

10

Published

1999

Size

851 kb

Author(s)

M.A. Samad and H. Tanaka

Abstract

Laminar plane bed bottom boundary layer properties under irregular waves have been investigated through numerical computation. Irregular waves have first been generated and later used for flow computation in the boundary layer applying Jones and Launder original low Reynolds number k-e model. Generation of irregular waves show satisfactory result when compared with input spectral properties. Model results have been compared with experiment data and an excellent agreement has been obtained. Results from different Reynolds number conditions have been utilized for detailed analysis of bottom shear stress variation with free stream velocity. It has been observed that bottom shear stress is more dominated by high frequency component w

Keywords