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SEMINAR: Today at noon! CSTAMP SPECIAL - Alina Galchenko

From: Roland Romeiser <rromeiser@rsmas.miami.edu>
Subject: SEMINAR: Today at noon! CSTAMP SPECIAL - Alina Galchenko
Date: Tue, 20 Apr 2010 10:01:44 -0400
CSTAMP COLLOQUIUM ON SELECTED TOPICS OF APPLIED MARINE PHYSICS

SPEAKER
Alina Galchenko
Swinburne University, Australia
(guest of Brian Haus)

TITLE
Modulation instabilities and breaking strength
for deep-water wave groups

DATE
Tuesday, April 20, 2010

TIME
12:00 noon

VENUE
RSMAS, AMP seminar room (MSC 125)
Abstract: Progression of nonlinear wave groups to breaking has been studied numerically and experimentally. Evolution of such wave group parameters as distance to breaking and modulation depth – the height ratio of the highest and the lowest waves in the group – is described. Numerical model results demonstrate good agreement with experimental results in describing the behaviour of the distance to breaking and modulation depth as functions of initial wave steepness. It is shown that energy loss appears to be a function of the modulation depth at the breaking onset. Energy loss grows with modulation depth up to a certain threshold of the latter. It is also shown that breaking probability for wave groups with modulation depth below 2.2 is very low.

All students are highly encouraged to come to this seminar!

List of all CSTAMP presentations in this semester:
http://www.rsmas.miami.edu/personal/rromeiser/cstamp_s10.pdf 

Roland Romeiser
Associate Professor
Division of Applied Marine Physics
Rosenstiel School of Marine and Atmospheric Science
University of Miami
4600 Rickenbacker Causeway
Miami, Florida 33149-1031 USA

Phone:  +1 305 421 4645
Fax:    +1 305 421 4701
E-Mail: rromeiser@rsmas.miami.edu
WWW:    www.rsmas.miami.edu/divs/amp/People/Faculty/Romeiser/