Nonlinear waves on a coupled density front
作者:
Nathan Paldor,
期刊:
Geophysical & Astrophysical Fluid Dynamics
(Taylor Available online 1986)
卷期:
Volume 37,
issue 3
页码: 171-191
ISSN:0309-1929
年代: 1986
DOI:10.1080/03091928608210095
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
It is shown that the inclusion of the nonlinear terms in the equations of motion of a coupled density front of zero potential vorticity results in wave solutions which merely propagate with time. The linear theory, on the other hand, predicts an exponential temporal growth. The nonlinear equation admits steady solutions representing standing waves whereas if the nonlinear terms are omitted no steady solutions exist. The general initial value problem is difficult to solve numerically since the linear problem is ill posed.
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