Contact Info
Department of Applied Mathematics
University of Waterloo
Waterloo, Ontario
Canada N2L 3G1
Phone: 519-888-4567, ext. 32700
Fax: 519-746-4319
PDF files require Adobe Acrobat Reader
MC 5417
Subasha Wickramarachchi
Department of Applied Mathematics, University of Waterloo
Ripples formed due to asymmetric oscillatory flows - An overview of laboratory experiments, ripple geometries, and flow characteristics
In this talk, we consider some laboratory experiments that have been conducted to study the formation of ripples due to oscillatory flows in shallow water. In particular, for wavetank experiments with a sloping beach, it is found that asymmetric ripples are formed under progressive waves. At a much longer timescale, these ripples migrate in the direction of the progressive wave. The flow beneath these progressive waves have characteristics profiles often quantified by velocity and acceleration asymmetry. The ripple geometry have certain features related to the physical characteristic of sand (angle of repose) and the amplitude of the oscillatory flow.
Contact Info
Department of Applied Mathematics
University of Waterloo
Waterloo, Ontario
Canada N2L 3G1
Phone: 519-888-4567, ext. 32700
Fax: 519-746-4319
PDF files require Adobe Acrobat Reader
The University of Waterloo acknowledges that much of our work takes place on the traditional territory of the Neutral, Anishinaabeg and Haudenosaunee peoples. Our main campus is situated on the Haldimand Tract, the land granted to the Six Nations that includes six miles on each side of the Grand River. Our active work toward reconciliation takes place across our campuses through research, learning, teaching, and community building, and is co-ordinated within the Office of Indigenous Relations.