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PRODID:-//talks.bham.ac.uk//v3//EN
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CATEGORIES:Applied Mathematics Seminar Series
SUMMARY:Low-order divergence-free finite element methods -
Gabriel Barrenechea\, University of Strathclyde
DTSTART:20191114T130000Z
DTEND:20191114T140000Z
UID:TALK3974AT
URL:/talk/index/3974
DESCRIPTION: In this talk I will review results on a divergenc
e-free reconstruction\nof the lowest order pair fo
r the Navier-Stokes equation. More precisely\,\nfr
om a stabilised P1xP0 scheme\, a divergence-free v
elocity field is built\nas the result of a lift of
the pressure jumps\, and it is then plugged in th
e\nconvective term of the momentum equation. This
process provides a\nmethod that can be proven stab
le without the need to suppose the mesh\nrefined e
nough. \nWe first apply this idea to the transient
Navier-Stokes equations\, where\nestimates indepe
ndent of the viscosity are derived. Then\, the app
licability\nof this idea is extended to a steady-s
tate generalised Boussinesq system.\n
LOCATION:Nuffield G13
CONTACT:Fabian Spill
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