Research

Lee waves: new understanding of a classical problem


Reference:

Dalziel, S. B., Patterson, M. D., Caulfield, C. P. and Le Brun, S., 2011. Lee waves: new understanding of a classical problem. In: Cenedese, A., Espa, S. and Purini, R., eds. Proceedings of VII International Symposium on Stratified Flows. , p. 1162.

Related documents:

This repository does not currently have the full-text of this item.
You may be able to access a copy if URLs are provided below.

Official URL:

http://www.dicea.uniroma1.it/issf2011/

Abstract

We explore the classical problem of lee wave generation by a stationary isolated three- dimensional obstacle in a uniform low-Froude-number stratified flow. By separating the permanent waves produced into three distinct categories, we compare detailed experimental measurements with theoretical predictions. We pay particular attention to the time-dependent establishment of the wave field and the orientation of the fan of lee waves that is established. As seen by previous authors, we find that the uniform flow can be divided into two regions: an essentially two-dimensional flow around the base of the obstacle and a wave-generating flow over the top portion of the obstacle. We show that quantitative agreement between experimental observations and predictions of linear wave theory is only possible if we take into account a small slope across the obstacle of the surface separating the quasi-two- dimensional flow around the base of the obstacle and the wave-generating flow over the top of the obstacle.

Details

Item Type Book Sections
CreatorsDalziel, S. B., Patterson, M. D., Caulfield, C. P. and Le Brun, S.
EditorsCenedese, A., Espa, S. and Purini, R.
DepartmentsFaculty of Engineering & Design > Architecture & Civil Engineering
Research CentresCentre for Space, Atmospheric and Oceanic Science
StatusPublished
ID Code25609
Additional Information7th Int. Symp. on Stratified Flows, Rome, Italy, August 22 - 26, 2011

Export

Actions (login required)

View Item