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= Physical Applied Math Group Meeting =
= Physical Applied Math Group Meeting =


*'''When:''' Thursdays at 4:00pm (unless there is a departmental meeting)
*'''When:''' Wednesdays at 4:00pm in VV 901
*'''Where:''' 901 Van Vleck Hall
*'''Where:''' 901 Van Vleck Hall
*'''Organizers:''' [http://www.math.wisc.edu/~spagnolie Saverio Spagnolie] and [http://www.math.wisc.edu/~jeanluc Jean-Luc Thiffeault]
*'''Organizers:''' [https://people.math.wisc.edu/~chr/ Chris Rycroft], [http://www.math.wisc.edu/~spagnolie Saverio Spagnolie] and [http://www.math.wisc.edu/~jeanluc Jean-Luc Thiffeault]
*'''To join the Physical Applied Math mailing list:''' See the [https://lists.math.wisc.edu/listinfo/phys_appl_math mailing list website].
*'''Announcements:''' Contact the organizers to join this meeting
 
<br>
 
== Spring 2014 Semester ==


== Fall 2024 ==
 
{| cellpadding="8"
{| cellpadding="8"
!align="left" | date
!align="left" | Date
!align="left" | speaker
!align="left" | Speaker
!align="left" | title/paper
!align="left" | Title
|-
|Sep 11
|Spagnolie
|Growth and buckling of filaments in viscous fluids, Part I
|-
|Sep 18
|Ohm
|Rods in flows: from geometry to fluids
|-
|-
|Jan 30
|Sep 25
|Peter Mueller
|–
|Roenby & Aref, [http://scitation.aip.org/content/aip/journal/pof2/22/5/10.1063/1.3406960 On the atmosphere of a moving body], Phys. Fluids (2010)
|
|-
|-
|Feb 13
|Oct 2
|Will Mitchell
|Arthur Young (Rycroft Group)
|Keaveny & Shelley, [http://www.sciencedirect.com/science/article/pii/S0021999110006741 Applying a second-kind boundary integral equation for surface tractions in Stokes flow], J. Comput. Phys. (2011)
|Multiphase Taylor–Couette flow transitions
|-
|-
|Feb 20
|Oct 9
|Saverio
|Albritton
|Stone & Samuel, [http://prl.aps.org/abstract/PRL/v77/i19/p4102_1 Propulsion of Microorganisms by Surface Distortions] Phys. Rev. Lett. (1996) and Khair & Squires, [http://prl.aps.org/abstract/PRL/v105/i15/e156001 Active Microrheology...] Phys. Rev. Lett. (2010)
|I thought we already knew everything about shear flows?
|-
|-
|Feb 27
|Oct 16
|Jim Brunner
|Chandler
|Craciun, Nazarov & Pantea, [http://www.math.wisc.edu/~craciun/PAPERS/Craciun_Nazarov_Pantea_PERSISTENCE_PERMANENCE.pdf Persistence and permanence of mass-action and power-law dynamical systems], SIAM J. Appl. Math. (2013)
|Investigating active liquid crystals using an immersed deformable body
|
|-
|-
|Mar 6
|Oct 23
|Marko Budisic
|Ohm
|Spectral graph theory ([http://mbudisic.wordpress.com/2014/03/06/basics-of-spectral-graph-theory/ link to notes and reading list])
|
|
|-
|-
|Mar 13
|Oct 30
|''faculty meeting''
|Thiffeault
|
|<s>Maxey-Riley equation for active particles</s> Time-dependent reciprocal theorem
|
|-
|-
|Mar 20
|Nov 6
|''Spring Break''
|–
|
|
|
|-
|-
|Mar 27
|Nov 13
|Tadashi Tokieda
|Ahmad Zaid Abassi
|Applying physics to mathematics
(UC Berkeley)
|Finite-depth standing water waves: theory, computational algorithms, and rational approximations
|-
|-
|Apr 3
|Nov 20
|Jean-Luc Thiffeault
|Jingyi Li
|Leptos, Guasto, Gollub, Pesci, & Goldstein, [http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.103.198103 Dynamics of Enhanced Tracer Diffusion in Suspensions of Swimming Eukaryotic Microorganisms], Phys. Rev. Lett. (2009) (see also these [http://www.math.wisc.edu/~jeanluc/pubs/ober2014_report.pdf notes])
|Arrested development and traveling waves of active suspensions in nematic liquid crystals
|-
|-
|Apr 10
|Nov 27
|''faculty meeting''
|''Thanksgiving''
|
|-
|-
|Apr 17
|Lei Li
|Peng et al., [http://www.sciencedirect.com/science/article/pii/S0021999199963453 A PDE-based fast local level set method], J. Comput. Phys. (1999)
|}
|}
== Abstracts ==
=== '''Ahmad Abassi, University of California, Berkeley''' ===
Title: Finite-depth standing water waves: theory, computational algorithms, and rational approximations
We generalize the semi-analytic standing-wave framework of Schwartz and Whitney (1981) and Amick and Toland (1987) to finite-depth standing gravity waves. We propose an appropriate Stokes-expansion ansatz and iterative algorithm to solve the system of differential equations governing the expansion coefficients. We then present a more efficient algorithm that allows us to compute the asymptotic solution to higher orders. Finally, we conclude with numerical simulations of the algorithms implemented in multiple-precision arithmetic on a supercomputer to study the effects of small divisors and the analytic properties of rational approximations of the computed solutions. This is joint work with Jon Wilkening (UC Berkeley).
== Archived semesters ==
*[[Applied/Physical Applied Math/Spring2024|Spring 2024]]
*[[Applied/Physical_Applied_Math/Fall2023|Fall 2023]]
*[[Applied/Physical_Applied_Math/Fall2021|Fall 2021]]
*[[Applied/Physical_Applied_Math/Spring2021|Spring 2021]]
*[[Applied/Physical_Applied_Math/Fall2020|Fall 2020]]
*[[Applied/Physical_Applied_Math/Summer2020|Summer 2020]]
*[[Applied/Physical_Applied_Math/Spring2020|Spring 2020]]
*[[Applied/Physical_Applied_Math/Fall2019|Fall 2019]]
*[[Applied/Physical_Applied_Math/Spring2019|Spring 2019]]
*[[Applied/Physical_Applied_Math/Fall2018|Fall 2018]]
*[[Applied/Physical_Applied_Math/Spring2018|Spring 2018]]
*[[Applied/Physical_Applied_Math/Fall2017|Fall 2017]]
*[[Applied/Physical_Applied_Math/Spring2017|Spring 2017]]
*[[Applied/Physical_Applied_Math/Fall2016|Fall 2016]]
*[[Applied/Physical_Applied_Math/Spring2016|Spring 2016]]
*[[Applied/Physical_Applied_Math/Fall2015|Fall 2015]]
*[[Applied/Physical_Applied_Math/Spring2015|Spring 2015]]
*[[Applied/Physical_Applied_Math/Summer2014|Summer 2014]]
*[[Applied/Physical_Applied_Math/Spring2014|Spring 2014]]


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Return to the [[Applied|Applied Mathematics Group Page]]

Latest revision as of 18:32, 4 December 2024

Physical Applied Math Group Meeting

Fall 2024

Date Speaker Title
Sep 11 Spagnolie Growth and buckling of filaments in viscous fluids, Part I
Sep 18 Ohm Rods in flows: from geometry to fluids
Sep 25 –
Oct 2 Arthur Young (Rycroft Group) Multiphase Taylor–Couette flow transitions
Oct 9 Albritton I thought we already knew everything about shear flows?
Oct 16 Chandler Investigating active liquid crystals using an immersed deformable body
Oct 23 Ohm
Oct 30 Thiffeault Maxey-Riley equation for active particles Time-dependent reciprocal theorem
Nov 6 –
Nov 13 Ahmad Zaid Abassi

(UC Berkeley)

Finite-depth standing water waves: theory, computational algorithms, and rational approximations
Nov 20 Jingyi Li Arrested development and traveling waves of active suspensions in nematic liquid crystals
Nov 27 Thanksgiving

Abstracts

Ahmad Abassi, University of California, Berkeley

Title: Finite-depth standing water waves: theory, computational algorithms, and rational approximations

We generalize the semi-analytic standing-wave framework of Schwartz and Whitney (1981) and Amick and Toland (1987) to finite-depth standing gravity waves. We propose an appropriate Stokes-expansion ansatz and iterative algorithm to solve the system of differential equations governing the expansion coefficients. We then present a more efficient algorithm that allows us to compute the asymptotic solution to higher orders. Finally, we conclude with numerical simulations of the algorithms implemented in multiple-precision arithmetic on a supercomputer to study the effects of small divisors and the analytic properties of rational approximations of the computed solutions. This is joint work with Jon Wilkening (UC Berkeley).

Archived semesters


Return to the Applied Mathematics Group Page

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