BEGIN:VCALENDAR
PRODID:-//PSU Mathematics Department//Seminar iCalendar Generator//EN
VERSION:2.0
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-WR-CALNAME:Complex Fluids Seminar
X-WR-TIMEZONE:America/New_York
BEGIN:VTIMEZONE
TZID:America/New_York
X-LIC-LOCATION:America/New_York
BEGIN:DAYLIGHT
TZOFFSETFROM:-0500
TZOFFSETTO:-0400
TZNAME:EDT
DTSTART:19700308T020000
RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=2SU
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0400
TZOFFSETTO:-0500
TZNAME:EST
DTSTART:19701101T020000
RRULE:FREQ=YEARLY;BYMONTH=11;BYDAY=1SU
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20140827T150000
DTEND;TZID=America/New_York:20140827T163000
LOCATION:MB315
URL:http://www.math.psu.edu/seminars/meeting.php?id=22280
SUMMARY:Complex Fluids Seminar - Navier-Stokes Equations with Density-depen
dentViscosity and Vacuum
DESCRIPTION:Seminar: Complex Fluids Seminar\nTitle: Navier-Stokes Equations
with Density-dependentViscosity and Vacuum\nSpeaker: Yachun Li\, Shanghai
Jiao Tong University\nAbstract: In this talk I will present some new resu
lts on isentropic Navier-Stokes equations for compressible ﬂuids with de
nsity-dependent viscosity coefficients. These equations are degenerate whe
n vacuum appears. The local existence of classical solutions is establishe
d when the shear viscosity coefficient and bulk viscosity \ncoefficient ar
e both proportional to the density and the initial data are arbitrarily la
rge with vacuum appearing in the far ﬁeld. Besides\, we study the Cauchy
problem for multi-dimensional compressible isentropic Navier-Stokes equat
ions with radiation (Navier-Stokes-Boltzmann equations). I will prove that
radiation effect cannot prevent the formation of singularities provided t
hat the initial mass density is compactly supported.
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20140903T153000
DTEND;TZID=America/New_York:20140903T170000
LOCATION:MB106
URL:http://www.math.psu.edu/seminars/meeting.php?id=24423
SUMMARY:Complex Fluids Seminar - Energetic Derivation of Incompressible Eul
er and Navier-Stokes systems on an Evolving Hypersurface
DESCRIPTION:Seminar: Complex Fluids Seminar\nTitle: Energetic Derivation of
Incompressible Euler and Navier-Stokes systems on an Evolving Hypersurfa
ce\nSpeaker: Hajime Koba\, Waseda University\nAbstract: In this talk\, we
consider fluid-flow on an evolving hypersurface. We apply our energetic va
riational approach to study the motion of incompressible inviscid and visc
ous flow on an evolving hypersurface. More precisely\, we derive the incom
pressible Euler and Navier-Stokes equations on an evolving hypersurface by
our energetic variational approach. Our results enable us to understand t
hat the fluid-flow on an evolving hypersurface depend on both the curvatur
e and the speed of an evolving hypersurface. This research relates to two
phase flow \nproblems\, geophysical fluid dynamics\, and flows in fluid me
mbranes. This is a joint work with Y. Giga (University of Tokyo) and C. Li
u \n(Penn State University).
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20140910T153000
DTEND;TZID=America/New_York:20140910T170000
LOCATION:MB106
URL:http://www.math.psu.edu/seminars/meeting.php?id=24425
SUMMARY:Complex Fluids Seminar - Well-posedness and Long-time Behavior of a
Non-autonomous Cahn-Hilliard-Darcy System with Mass Source Modeling Tumor
Growth-I
DESCRIPTION:Seminar: Complex Fluids Seminar\nTitle: Well-posedness and Long
-time Behavior of a Non-autonomous Cahn-Hilliard-Darcy System with Mass So
urce Modeling Tumor Growth-I\nSpeaker: Jie Jiang\, Wuhan Institute of Phys
ics and Mathematics\nAbstract: We talk about our recently result on an in
itial boundary value problem of the Cahn-Hilliard-Darcy system with a non-
autonomous mass source term modeling tumor growth. Existence of global we
ak solutions as well as the existence of unique local strong solutions are
given in both 2D and 3D. Then we investigate the qualitative behavior of
solutions in details when the spatial dimension is two. More precisely\, w
e prove that the strong solution exists globally and it defines a closed d
ynamical process. Then we study the longtime behavior of the 2D strong sol
utions to our problem under suitable assumptions on the external source te
rm.
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20140917T153000
DTEND;TZID=America/New_York:20140917T170000
LOCATION:MB106
URL:http://www.math.psu.edu/seminars/meeting.php?id=24426
SUMMARY:Complex Fluids Seminar - The existence of a global attractor for th
e forced critical surface quasi-geostrophic Equation in $L^2$
DESCRIPTION:Seminar: Complex Fluids Seminar\nTitle: The existence of a glob
al attractor for the forced critical surface quasi-geostrophic Equation in
$L^2$\nSpeaker: Mimi Dai\, University of Illinois at Chicago\nAbstract: W
e prove that the critical surface quasi-geostrophic equation driven by a f
orce $f$ possesses a compact global attractor in $L^2(\\mathbb T^2)$ provi
ded $f\\in L^p(\\mathbb T^2)$ for some $p>2$.
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20140924T153000
DTEND;TZID=America/New_York:20140924T170000
LOCATION:MB106
URL:http://www.math.psu.edu/seminars/meeting.php?id=24427
SUMMARY:Complex Fluids Seminar - Some problems on the two-phase flows with
diffuse interface
DESCRIPTION:Seminar: Complex Fluids Seminar\nTitle: Some problems on the tw
o-phase flows with diffuse interface\nSpeaker: Yinghua Li\, South China No
rmal University\nAbstract: We consider the well-posedness of 1-D compressi
ble Navier-Stokes/Cahn-Hilliard system\, 1-D compressible Navier-Stokes/Al
len-Cahn system\, and the blow-up criterion of incompressible Navier-Stoke
s/Allen Cahn system with different densities in 2-D and 3-D.
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20141001T153000
DTEND;TZID=America/New_York:20141001T170000
LOCATION:MB106
URL:http://www.math.psu.edu/seminars/meeting.php?id=24428
SUMMARY:Complex Fluids Seminar - Some problems on the two-phase flows with
diffuse interface-part II
DESCRIPTION:Seminar: Complex Fluids Seminar\nTitle: Some problems on the tw
o-phase flows with diffuse interface-part II\nSpeaker: Yinghua Li\, South
China Normal University\nAbstract: We consider the well-posedness of 1-D c
ompressible Navier-Stokes/Cahn-Hilliard system\, 1-D compressible Navier-S
tokes/Allen-Cahn system\, and the blow-up criterion of incompressible Navi
er-Stokes/Allen Cahn system with different densities in 2-D and 3-D.
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20141008T153000
DTEND;TZID=America/New_York:20141008T170000
LOCATION:MB106
URL:http://www.math.psu.edu/seminars/meeting.php?id=24429
SUMMARY:Complex Fluids Seminar - Numerical approximations and analysis for
phase-field equations
DESCRIPTION:Seminar: Complex Fluids Seminar\nTitle: Numerical approximation
s and analysis for phase-field equations\nSpeaker: Jiang Yang\, Penn State
University\nAbstract: In this presentation\, we concentrate on numerical
approximations and analysis for two phase-field equations\, namely the All
en-Cahn equation and the Cahn Hilliard equation. Based on the stabilized s
emi-implicit scheme\, which is unconditionally energy stable with only fir
st order accuracy\, we use the spectral deferred correction (SDC) methods
to produce high order accurate solutions. A local p-adaptive strategy is p
roposed to balance the accuracy and overall energy stability. Another part
focuses on the numerical stability analysis for Allen-Cahn equations. Apa
rt from extensively studied energy stability\, we establish the numerical
maximum principle and the uniform L^2 stability for finite difference meth
ods and Fourier spectral methods\, respectively.
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20141015T153000
DTEND;TZID=America/New_York:20141015T170000
LOCATION:MB106
URL:http://www.math.psu.edu/seminars/meeting.php?id=24430
SUMMARY:Complex Fluids Seminar - Well-posedness and Long-time Behavior of a
Non-autonomous Cahn-Hilliard-Darcy System with Mass Source Modeling Tumor
Growth-II
DESCRIPTION:Seminar: Complex Fluids Seminar\nTitle: Well-posedness and Long
-time Behavior of a Non-autonomous Cahn-Hilliard-Darcy System with Mass So
urce Modeling Tumor Growth-II\nSpeaker: Jie Jiang\, Wuhan Institute of Phy
sics and Mathematics\nAbstract: We talk about our recently result on an in
itial boundary value problem of the Cahn-Hilliard-Darcy system with a non-
autonomous mass source term modeling tumor growth. Existence of global wea
k solutions as well as the existence of unique local strong solutions are
given in both 2D and 3D. Then we investigate the qualitative behavior of s
olutions in details when the spatial dimension is two. More precisely\, we
prove that the strong solution exists globally and it defines a closed dy
namical process. Then we study the longtime behavior of the 2D strong solu
tions to our problem under suitable assumptions on the external source ter
m.
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20141022T153000
DTEND;TZID=America/New_York:20141022T170000
LOCATION:MB106
URL:http://www.math.psu.edu/seminars/meeting.php?id=24431
SUMMARY:Complex Fluids Seminar - Well-posedness and Long-time Behavior of a
Non-autonomous Cahn-Hilliard-Darcy System with Mass Source Modeling Tumor
Growth
DESCRIPTION:Seminar: Complex Fluids Seminar\nTitle: Well-posedness and Long
-time Behavior of a Non-autonomous Cahn-Hilliard-Darcy System with Mass So
urce Modeling Tumor Growth\nSpeaker: Jie Jiang\, Wuhan Institute of Physic
s and Mathematics\nAbstract: We talk about our recently result on an initi
al boundary value problem of the Cahn-Hilliard-Darcy system with a non-aut
onomous mass source term modeling tumor growth. Existence of global weak s
olutions as well as the existence of unique local strong solutions are giv
en in both 2D and 3D. Then we investigate the qualitative behavior of solu
tions in details when the spatial dimension is two. More precisely\, we pr
ove that the strong solution exists globally and it defines a closed dynam
ical process. Then we study the longtime behavior of the 2D strong solutio
ns to our problem under suitable assumptions on the external source term.
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20141029T153000
DTEND;TZID=America/New_York:20141029T170000
LOCATION:MB106
URL:http://www.math.psu.edu/seminars/meeting.php?id=24432
SUMMARY:Complex Fluids Seminar - Some results on the compressible Navier-St
okes equations with density-dependendt viscosity
DESCRIPTION:Seminar: Complex Fluids Seminar\nTitle: Some results on the com
pressible Navier-Stokes equations with density-dependendt viscosity\nSpeak
er: Mingjie Li\, Minzu University of China\nAbstract: We talk about some
a priori estimations on the 1D compressible Navier-Stokes equations with d
ensity-dependendt viscosity which based on the special structure of equati
ons. From these estimations we can study the behavior of vacuum state and
blow up phenomena of the flow. Then we extend these a priori estimations i
nto Multi-Dimensional case.
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20141105T153000
DTEND;TZID=America/New_York:20141105T170000
LOCATION:MB106
URL:http://www.math.psu.edu/seminars/meeting.php?id=24433
SUMMARY:Complex Fluids Seminar - Some results on the compressible Navier-St
okes equations with density-dependendt viscosity (part II)
DESCRIPTION:Seminar: Complex Fluids Seminar\nTitle: Some results on the com
pressible Navier-Stokes equations with density-dependendt viscosity (part
II)\nSpeaker: Mingjie Li\, Minzu University of China\nAbstract: We talk ab
out some a priori estimations on the 1D compressible Navier-Stokes equatio
ns with density-dependendt viscosity which based on the special structure
of equations. From these estimations we can study the behavior of vacuum s
tate and blow up phenomena of the flow. Then we extend these a priori esti
mations into Multi-Dimensional case.
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20141112T153000
DTEND;TZID=America/New_York:20141112T170000
LOCATION:MB106
URL:http://www.math.psu.edu/seminars/meeting.php?id=24434
SUMMARY:Complex Fluids Seminar - PDE models for Ferrofluids and their Numer
ical Analysis
DESCRIPTION:Seminar: Complex Fluids Seminar\nTitle: PDE models for Ferroflu
ids and their Numerical Analysis\nSpeaker: Ignacio Tomas\, University of M
aryland\nAbstract: A ferrofluid is a liquid which becomes strongly magneti
zed in the presence of applied magnetic fields. In this talk we will surve
y some models for ferrofluids: their physical origins\, PDE models\, and r
elated numerics. There are two generally accepted ferrofluid models which
we will call by the name of their developers: the Rosensweig and Shliomis
model. We will start by developing a numerical scheme for the Rosensweig m
odel and carefully track the requirements to devise of an energy-stable sc
heme. Both the Rosensweig and Shliomis models deal with one-phase flows\,
which is the case of many technological applications. However\, many appli
cations arise naturally in the form of a two-phase flow: one of the phases
has magnetic properties and the other one does not (e.g. magnetic manipul
ation of microchannel flows\, microvalves\, magnetically guided transport
\, etc). We have also developed a matching-density two-phase ferrofluid mo
del starting from the simplified framework of the Shliomis model and the C
ahn-Hilliard equation. This model satisfies an energy law\, and with the l
essons learned from the Rosensweig model\, we were able to devise an energ
y-stable scheme. In addition\, with some simplifications of the two-phase
model\, it is possible to prove convergence of the scheme\, and as a by pr
oduct\, existence of solutions of the simplified PDE system. Finally\, I w
ill illustrate the capabilities of the numerical schemes with some numeric
al simulations.
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20141119T153000
DTEND;TZID=America/New_York:20141119T170000
LOCATION:MB106
URL:http://www.math.psu.edu/seminars/meeting.php?id=24435
SUMMARY:Complex Fluids Seminar - Group Discussion
DESCRIPTION:Seminar: Complex Fluids Seminar\nTitle: Group Discussion
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20141203T153000
DTEND;TZID=America/New_York:20141203T170000
LOCATION:MB106
URL:http://www.math.psu.edu/seminars/meeting.php?id=24437
SUMMARY:Complex Fluids Seminar - TBA
DESCRIPTION:Seminar: Complex Fluids Seminar\nTitle: TBA\nAbstract Link: htt
p://
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20141210T153000
DTEND;TZID=America/New_York:20141210T170000
LOCATION:MB106
URL:http://www.math.psu.edu/seminars/meeting.php?id=24438
SUMMARY:Complex Fluids Seminar - TBA
DESCRIPTION:Seminar: Complex Fluids Seminar\nTitle: TBA\nAbstract Link: htt
p://
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20141217T153000
DTEND;TZID=America/New_York:20141217T170000
LOCATION:MB106
URL:http://www.math.psu.edu/seminars/meeting.php?id=24439
SUMMARY:Complex Fluids Seminar - TBA
DESCRIPTION:Seminar: Complex Fluids Seminar\nTitle: TBA\nAbstract Link: htt
p://
END:VEVENT
END:VCALENDAR