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DTSTART:19960101T000000 END:STANDARD BEGIN:STANDARD TZNAME:GMT TZOFFSETFROM:+0100 TZOFFSETTO:+0000 DTSTART:19961027T020000 RRULE:FREQ=YEARLY;BYMONTH=10;BYDAY=-1SU END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTAMP:20260428T015729Z DTSTART;VALUE=DATE-TIME:20170522T150000 DTEND;VALUE=DATE-TIME:20170522T160000 SUMMARY:Joanne Mason (University of Exeter): The large and small scales o f incompressible field-guided MHD turbulence TZID:Europe/London UID:20170522-094d434557c35393015829a749f6735b@warwick.ac.uk CREATED:20161103T100619Z DESCRIPTION:Incompressible magnetohydrodynamics (MHD) provides the simple st theoretical framework for understanding magnetised plasma turbulence\ , which plays an important role in many problems in astrophysics\, space physics and laboratory plasma physics. Numerical simulations of MHD tur bulence are of great value\, but the Reynolds numbers that are attainabl e are far below those relevant to nature. There is therefore much intere st in building phenomenological models to understand the universal scali ng properties of the small-scale fluctuations. In this talk I shall desc ribe how high-resolution numerical simulations coupled with phenomenolog ical modelling can be very useful for gaining insight into the basic pro perties of MHD turbulence (e.g. the process of scale-dependent alignment of the velocity and the magnetic field fluctuations (Boldyrev\, 2006)). I will also discuss how the Kolmogorov self-similarity hypotheses for t he universal structure of the inertial and dissipation intervals of hydr odynamic turbulence do not pass over easily into the MHD case\, and how this imposes stringent resolution requirements on numerical studies of M HD turbulence. LOCATION: CATEGORIES:CFSA Seminar LAST-MODIFIED:20170509T083755Z ORGANIZER;CN=Anne-Marie Broomhall: END:VEVENT END:VCALENDAR