Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Mark D. Fruman"'
Publikováno v:
Journal of the Atmospheric Sciences. 72:3537-3562
To reduce the computational costs of numerical studies of gravity wave breaking in the atmosphere, the grid resolution has to be reduced as much as possible. Insufficient resolution of small-scale turbulence demands a proper turbulence parameterizati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::523c7c64186896613a2220252b3d7679
https://doi.org/10.1175/jas-d-14-0321.1
https://doi.org/10.1175/jas-d-14-0321.1
Publikováno v:
Journal of Fluid Mechanics. 758:287-311
A finite-volume model of the classic differentially heated rotating annulus experiment is used to study the spontaneous emission of gravity waves (GWs) from jet stream imbalances, which may be an important source of these waves in the atmosphere and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0615fe01c1fd05000dba7dcdaaa4b73f
https://doi.org/10.1017/jfm.2014.528
https://doi.org/10.1017/jfm.2014.528
Publikováno v:
Quarterly Journal of the Royal Meteorological Society. 141:676-697
The dynamics of internal gravity waves is modelled using Wentzel–Kramer–Brillouin (WKB) theory in position–wave number phase space. A transport equation for the phase-space wave-action density is derived for describing one-dimensional wave fiel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a1f8ce38b0e7423e22a402a486f25ca
https://doi.org/10.1002/qj.2381
https://doi.org/10.1002/qj.2381
Publikováno v:
Journal of Fluid Mechanics. 722:424-436
We have performed fully resolved three-dimensional numerical simulations of a statically unstable monochromatic inertia–gravity wave using the Boussinesq equations on an $f$-plane with constant stratification. The chosen parameters represent a grav
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::576d109cd0d2a1a369601ce4886a0a6f
https://doi.org/10.1017/jfm.2013.108
https://doi.org/10.1017/jfm.2013.108
Autor:
Ulrich Achatz, Mark D. Fruman
Publikováno v:
Journal of the Atmospheric Sciences. 69:303-322
The three-dimensionalization of turbulence in the breaking of nearly vertically propagating inertia–gravity waves is investigated numerically using singular vector analysis applied to the Boussinesq equations linearized about three two-dimensional
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1c99b19b96e3f5614ac908ac1d5d8e15
https://doi.org/10.1175/jas-d-10-05027.1
https://doi.org/10.1175/jas-d-10-05027.1
Publikováno v:
Direct and Large-Eddy Simulation IX ISBN: 9783319144474
Geophysical flows including stable stratification and system rotation are a special challenge for turbulence subgrid-sclae models for large-eddy simulation (LES) and hence require validation with suitable test cases. We validate different subgrid-sca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7719274d28c170a0be20330312a5b0fa
https://doi.org/10.1007/978-3-319-14448-1_52
https://doi.org/10.1007/978-3-319-14448-1_52
Publikováno v:
High Performance Computing in Science and Engineering ‘14 ISBN: 9783319108094
We present the results of fully resolved direct numerical simulations of monochromatic gravity waves breaking in the middle atmosphere. The simulations are initialized with optimal perurbations of the gives waves. Given a wavelength of 3 km, the requ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ce41a11c9f4872d3c2ef8a9cbdde1d17
https://doi.org/10.1007/978-3-319-10810-0_39
https://doi.org/10.1007/978-3-319-10810-0_39
Publikováno v:
Journal of Geophysical Research: Atmospheres. 119:11-11,640
A systematic approach to the direct numerical simulation (DNS) of breaking upper mesospheric inertia-gravity waves of amplitude close to or above the threshold for static instability is presented. Normal mode or singular vector analysis applied in a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cfdcdd57a41d467f38341507c6268340
https://doi.org/10.1002/2014jd022046
https://doi.org/10.1002/2014jd022046
Autor:
Mark D. Fruman
Publikováno v:
Journal of the Atmospheric Sciences
Journal of the Atmospheric Sciences, American Meteorological Society, 2009, 66 (9), pp.2937-2945. ⟨10.1175/2009JAS2932.1⟩
Journal of the Atmospheric Sciences, American Meteorological Society, 2009, 66 (9), pp.2937-2945. ⟨10.1175/2009JAS2932.1⟩
Meridionally confined zonally propagating wave solutions to the linear hydrostatic Boussinesq equations on a generalized equatorial β plane that includes the “nontraditional” Coriolis force terms associated with the poleward component of planeta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a4848b623c206ebcef5b9ba1538b37ae
https://hal.archives-ouvertes.fr/hal-00453538
https://hal.archives-ouvertes.fr/hal-00453538
Publikováno v:
Journal of the Atmospheric Sciences
Journal of the Atmospheric Sciences, American Meteorological Society, 2009, 66 (9), pp.2600-2619. ⟨10.1175/2009JAS2913.1⟩
Journal of the Atmospheric Sciences, American Meteorological Society, 2009, 66 (9), pp.2600-2619. ⟨10.1175/2009JAS2913.1⟩
Depth-dependent barotropic instability of short mixed Rossby–gravity (MRG) waves is proposed as a mechanism for the formation of equatorial zonal jets. High-resolution primitive equation simulations show that a single MRG wave of very short zonal w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1890d294356bcc1bb5cd68a774349426
https://hal.archives-ouvertes.fr/hal-00453536
https://hal.archives-ouvertes.fr/hal-00453536