Open AccessWIND-INDUCED WATER SURFACE SET-UP AND DRIFT CURRENTS
Author(s) -
Frederick L.W. Tang,
Jin Wu,
Charles C.C. Chang,
ShanHwei Ou
Publication year - 1978
Publication title -
proceedings of conference on coastal engineering/proceedings of ... conference on coastal engineering
Language(s) - English
Resource type - Journals
eISSN - 2156-1028
pISSN - 0589-087X
DOI - 10.9753/icce.v16.48
Subject(s) - froude number , wind stress , wind speed , wind shear , log wind profile , mechanics , current (fluid) , meteorology , drift current , flow (mathematics) , wind gradient , shear stress , geology , environmental science , atmospheric sciences , physics , oceanography
A systematic experiment to study the wind-induced flow phenomena was conducted in a laboratory tank. The results are related to the wind friction velocity and subsequently scaled for applications at various fetches under different wind velocities. The wind-stress coefficients are found to be well scaled by the Froude number. The bottom friction is measured with an effective shear gauge. The ratios between the bottom stress and the wind stress are obtained. The complete profiles of wind drift current are measured under various wind velocities. A tentative distribution of drift currents in the whole water depth is proposed. The results from the experiment are used to examine the wind-induced flow phenomena in a closed basin.