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| Titel |
Numerical simulation of bore generation and morphology in thermal and Doppler ducts |
| VerfasserIn |
B. Laughman, D. C. Fritts, J. Werne |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
0992-7689
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| Digitales Dokument |
URL |
| Erschienen |
In: Annales Geophysicae ; 27, no. 2 ; Nr. 27, no. 2 (2009-02-02), S.511-523 |
| Datensatznummer |
250016391
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| Publikation (Nr.) |
 copernicus.org/angeo-27-511-2009.pdf |
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| Zusammenfassung |
| We perform a series of numerical simulations employing a model describing
nonlinear incompressible dynamics to explore bore generation and morphology
for several ducting geometries. These include idealized thermal ducts in
close proximity to, and more remote from, reflecting boundaries, an
idealized Doppler duct remote from boundaries, and a combination of thermal
and Doppler ducts at nearby altitudes. Based on observed bore environments,
we assume initial long-wave perturbations having sinusoidal form and large
amplitudes. Results indicate that close proximity of a duct to reflecting
boundaries enhances bore development, that both thermal and Doppler ducts
support bore development for long-wave perturbations of sufficiently large
amplitudes, and that bore structures and evolutions exhibit both features
anticipated by idealized bore theory and departures that remain to be
explored in detail. |
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