نتایج جستجو برای: generation of rossby waves around the vortices

تعداد نتایج: 22831797  

Journal: :The Astrophysical Journal 2023

Abstract Gas giant planets are believed to accrete from their circumplanetary disks (CPDs). The CPDs usually involve accretion through the boundary layer (BL) in vicinity of planets. Prior studies have concentrated on BL nonspinning We investigate influence planetary spin wave behaviors within BL. rotation profile such BLs would show a sharp transition rigid Keplerian rotation. examine angular ...

The unstable flow with rotating-stall-like (RS) effects in a rotor-cascade of an axialcompressor was numerically investigated. The RS was captured with the reduction in mass flow rateand increasing of exit static pressure with respect to design operating condition of the single rotor.The oscillatory velocity traces during the stall propagation showed that the RS vortices repeatperiodically, and...

2009
Ross Tulloch John Marshall K. Shafer Smith

[1] The interpretation of surface altimetric signals in terms of Rossby waves is revisited. Rather than make the long-wave approximation, the horizontal scale of the waves is adjusted to optimally fit the phase speed predicted by linear theory to that observed by altimetry, assuming a first baroclinic mode vertical structure. It is found that in the tropical band the observations can be fit if ...

2004
Edwin Beckenbach Libe Washburn

[1] Three years of high-frequency radar observations in the Santa Barbara Channel reveal sequences of alternating cyclonic and anticyclonic vortices propagating westward with a period of approximately 2 weeks. The sequences last up to a few months and occur intermittently throughout the year. The velocity distributions of cyclones and anticyclones are antisymmetric with a mean propagation speed...

2002
JOHN P. BOYD ZAPHIRIS D. CHRISTIDIS

Boyd, J.P. and Christidis, Z.D., 1987. The algebraic decay of equatorial Rossby waves in a shear flow. Dyn. Atmos. Oceans, 11: 139-151. Through numerical integration, we show that equatorial Rossby waves, like their midlatitude counterparts, decay algebraically in the limit t --, co in a linear shear flow. For small times, the growth expected for some components does not translate into any grow...

2001
Peter G Challenor Paolo Cipollini David Cromwell James Rennell

One of the most successful applications of satellite-borne radar altimeter data over the oceans in recent years has been the extraction of information about long-wavelength baroclinic Rossby (or planetary) waves, which play a significant role in ocean circulation and climate dynamics. These waves cross ocean basins from east to west at speeds of few centimetres per second at mid-latitudes. The ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی 1390

introruction khawf in(iran)-herat and mazaresharif and shirkhan bandar in (afghanistan)-dushanbe in (tajikistan)_(kirgizstan)-kashghar in(china) project railway network is under construction that it is as a significant corridor for revitalizing silk road corridor in the region .at the present there are three different gauge in the region central asia with 1,520 mm gauge and turkey-islamic repu...

Journal: :The Astrophysical Journal 2022

Abstract The substructures observed in protoplanetary disks may be the signposts of embedded planets carving gaps or creating vortices. inferred masses these often fall Jovian regime despite their low abundance compared to lower-mass planets, partly because previous works assume that a single substructure (a gap vortex) is caused by planet. In this work, we study possible imprints compact syste...

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