An Exact, Three‐dimensional, Time‐dependent Wave Solution in Local Keplerian Flow | Zendy

Steven A. Balbus | Zendy; John F. Hawley | Zendy

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An Exact, Three‐dimensional, Time‐dependent Wave Solution in Local Keplerian Flow

Author(s) -

Steven A. Balbus,

John F. Hawley

Publication year - 2006

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/508320

Subject(s) - shearing (physics) , dissipative system , exact solutions in general relativity , wavenumber , turbulence , classical mechanics , physics , flow (mathematics) , shear flow , mechanics , optics , quantum mechanics , thermodynamics

We present an exact three-dimensional wave solution to the shearing sheetequations of motion. The existence of this solution argues against transientamplification as a route to turbulence in unmagnetized disks. Moreover, becausethe solution covers an extensive dynamical range in wavenumber space, it is anexcellent test of the dissipative properties of numerical codes.Comment: 22 pages, 4 figures. To appear Apj Dec 1 200

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