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dc.contributor.authorPaardekooper, SJ
dc.contributor.authorOgilvie, Gordon
dc.date.accessioned2019-01-22T00:31:55Z
dc.date.available2019-01-22T00:31:55Z
dc.date.issued2019-03
dc.identifier.issn0035-8711
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/288338
dc.description.abstractWe study the hydrodynamical stability of the laminar flows associated with warped astrophysical discs using numerical simulations of warped shearing boxes. We recover linear growth rates reported previously due to a parametric resonance of inertial waves, and show that the nonlinear saturated state can significantly reduce the laminar flows, meaning that the warp would evolve on much longer time scales than would be concluded from the internal torques due to these laminar flows. Towards larger warp amplitudes, we find first of all a reversal of angular momentum flux, indicating that the mass distribution would evolve in an anti-diffusive manner, and second that the linear growth rates disappear, possibly because of the very strong shear in the laminar flows in this regime. For discs with small enough viscosity, a nonlinear state can still be found when linear growth rates are absent by introducing a large enough perturbation, either by starting from a nonlinear state obtained at smaller warp amplitude, or by starting from a state with no laminar flows.
dc.publisherOxford University Press (OUP)
dc.titleLocal numerical simulations of warped discs
dc.typeArticle
prism.endingPage3753
prism.issueIdentifier3
prism.publicationDate2019
prism.publicationNameMonthly Notices of the Royal Astronomical Society
prism.startingPage3738
prism.volume483
dc.identifier.doi10.17863/CAM.35654
dcterms.dateAccepted2018-12-04
rioxxterms.versionofrecord10.1093/mnras/sty3349
rioxxterms.versionAM
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.licenseref.startdate2019-03-01
dc.contributor.orcidOgilvie, Gordon [0000-0002-7756-1944]
dc.identifier.eissn1365-2966
rioxxterms.typeJournal Article/Review
pubs.funder-project-idScience and Technology Facilities Council (ST/P000673/1)
pubs.funder-project-idScience and Technology Facilities Council (ST/L000636/1)
cam.issuedOnline2018-12-11
cam.orpheus.successThu Jan 30 10:53:19 GMT 2020 - Embargo updated
rioxxterms.freetoread.startdate2019-01-01


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