Theoretical and experimental investigation of resonant flow over submerged objects
ORAL
Abstract
We consier the wave motion generated by a moving submerged object in a rectilnear 18 meter wave tank experimentally. Depending on the Froude number, several different regimes are studied. Precursor solitary waves periodically generated and moving ahead of the obstacle are seen to co-exist with hydraulic jumps with capillary wave breaking. Mode sorting is observed after the obstacle is stopped. The data are collected with wave gauges, PIV, and co-moving video tracking of the interface. The effects of pre-existing wave currents on the propagation of the wave train is also examined and demonstrate novel deconstructive interference. Long wave models as well as direct numerical simulations will be presented time permitting.
–
Presenters
-
Roberto Camassa
University of North Carolina at Chapel Hill
Authors
-
Roberto Camassa
University of North Carolina at Chapel Hill
-
Lingyun Ding
University of North Carolina at Chapel Hill
-
Russell Engle
University of North Carolina at Chapel Hill
-
Kelli L Hendrickson
Massachusetts Institute of Technology MIT
-
Robert Hunt
University of North Carolina at Chapel H, University of North Carolina at Chapel Hill
-
Jeremy Marzuola
University of North Carolina
-
Richard M McLaughlin
University of North Carolina at Chapel Hill, University of North Carolina at Chapel H
-
Jon Wilkening
University of Califoria Berkeley