摘要:

Two-dimensional convection in a horizontal layer of Boussinesq fluid rotating about a vertical axis is studied. For certain choices of the parameters the dispersion relation describing the stability of the conductive solution has two zero eigenvalues. For nearby parameter values nonlinear solutions are accessible analytically, using either the method of normal forms or an amplitude expansion. The results provide a complete description of the transitions between oscillatory and steady convection as functions of the Rayleigh and Taylor numbers near their critical values.

ISSN:0309-1929    

DOI:10.1080/03091928308209045

出版商:Taylor & Francis Group    

年代:1983

数据来源: Taylor

摘要:

The steady state circulation of a constant barotropic current around a coastal headland, bay, or combination of the two, located on a flat bottom, mid-latitude β-plane is considered. The maximum displacement of the coastal features from the mean straight coastline is assumed to be small compared to the longshore variation of the coastline. Under this slowly varying coastline approximation, a linearised vorticity equation is derived for the perturbation stream function. An analytical solution for the perturbation stream function is obtained using a Green's function technique. For a specified coastline the effects of coastal orientation, linear friction and the strength of the mean flow are investigated. The model predicts that the flow field will adopt the pattern of the coastline. The question of whether a coastal feature is likely to induce linear flow dynamics within the coastal boundary layer is also addressed. In the case when a single Gaussian headland or bay violates the slowly varying longshore condition the model predicts that flow stagnation will not occur. However for multiple headlands and bays, flow stagnation is possible when the slowly varying longshore condition is sufficiently violated.

ISSN:0309-1929    

DOI:10.1080/03091928308209046

出版商:Taylor & Francis Group    

年代:1983

数据来源: Taylor

摘要:

In this unsteady barotropic model of the circulation over an oceanic continental shelf, account is taken of the shelf break by introducing a leaky boundary condition at the edge of the shelf which allows a weak linkage between the rapidly changing flow on the shelf and the more slowly varying deep water flow offshore of the shelf break.

ISSN:0309-1929    

DOI:10.1080/03091928308209047

出版商:Taylor & Francis Group    

年代:1983

数据来源: Taylor

摘要:

It is shown that shelf similar depth profiles, along which free continental shelf waves propagate with change of form but with exponentially small scattering, are those which may be obtained from the exponential profile by conformal mapping of the shelf region. Further, it is suggested that the description “shelf similar” be widened in scope by applying it to topographies which cause asymptotically equivalent scattering of shelf waves.

ISSN:0309-1929    

DOI:10.1080/03091928308209048

出版商:Taylor & Francis Group    

年代:1983

数据来源: Taylor

摘要:

Edited by P. A. Wayman. D. Reidel Publishing Co. VIII+868 pp. 1980. U.S. $84.00 ISBN 90-277-1 146-1. Paper U.S. $39.50 ISBN 90-277-1 147-X.

ISSN:0309-1929    

DOI:10.1080/03091928308209049

出版商:Taylor & Francis Group    

年代:1983

数据来源: Taylor

摘要:

By D. B. Melrose. Gordon and Breach, 434pp. $64.50. (ISBN 0 677 02130 5)1980.

ISSN:0309-1929    

DOI:10.1080/03091928308209050

出版商:Taylor & Francis Group    

年代:1983

数据来源: Taylor

摘要:

Edited by F. D. Kahn, D. Reidel Publishing Company (ISBN 90-277-1325-1) 1981. Price Dfl. 125.00/U.S. $54.50. Approx. 448 pp.

ISSN:0309-1929    

DOI:10.1080/03091928308209051

出版商:Taylor & Francis Group    

年代:1983

数据来源: Taylor

摘要:

By I. I. Rokityansky, 381 pages, Springer-Verlag, Berlin (1982). Price $65.80 ISBN 3 540 10630 8.

ISSN:0309-1929    

DOI:10.1080/03091928308209052

出版商:Taylor & Francis Group    

年代:1983

数据来源: Taylor

摘要:

Edited by D. L. Book. Springer-Verlag, New York, 1981. 226 pp., DM 72,—, $33.60. (ISBN 0 387 104828)

ISSN:0309-1929    

DOI:10.1080/03091928308209053

出版商:Taylor & Francis Group    

年代:1983

数据来源: Taylor