SIAM Student Chapter Seminar: Difference between revisions

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*'''When:''' Fridays at 1 PM unless noted otherwise
*'''When:''' Fridays at 1:30 PM unless noted otherwise
*'''Where:''' 9th floor lounge (we will also broadcast the virtual talks on the 9th floor lounge with refreshments)
*'''Where:''' 9th floor lounge (we will also broadcast the virtual talks on the 9th floor lounge with refreshments)
*'''Organizers:''' Yahui Qu, Peiyi Chen, Shi Chen and Zaidan Wu
*'''Organizers:''' Yahui Qu, Peiyi Chen and Zaidan Wu
*'''Faculty advisers:''' [http://www.math.wisc.edu/~jeanluc/ Jean-Luc Thiffeault], [http://pages.cs.wisc.edu/~swright/ Steve Wright]  
*'''Faculty advisers:''' [http://www.math.wisc.edu/~jeanluc/ Jean-Luc Thiffeault], [http://pages.cs.wisc.edu/~swright/ Steve Wright]  
*'''To join the SIAM Chapter mailing list:''' email [mailto:siam-chapter+join@g-groups.wisc.edu siam-chapter+join@g-groups.wisc.edu].
*'''To join the SIAM Chapter mailing list:''' email [mailto:siam-chapter+join@g-groups.wisc.edu siam-chapter+join@g-groups.wisc.edu].
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*'''Passcode:  281031'''
*'''Passcode:  281031'''


== Spring 2024 ==
== Spring 2025 ==


{| class="wikitable"
{| class="wikitable"
|+
|+
!Date
|Date
!Location
|Location
!Speaker
|Speaker
!Title
|Title
|-
|-
|2/2
|03/07
|VV911
|9th floor
|Thomas Chandler (UW-Madison)
|Ang Li
|Fluid–body interactions in anisotropic fluids
|Applying for postdocs and different industry jobs ... at the
same time
|-
|-
|3/8
|04/04
|Ingraham 214
|
|Danyun He (Harvard)
|Borong Zhang
|Energy-positive soaring using transient turbulent fluctuations
|-
|3/15
|
|
|Xiaoyu Dong (UMich)
|TBD
|-
|-
|3/22
|04/11
|
|
|Mengjin Dong (UPenn)
|Ian McPherson
|TBD
|-
|4/5
|VV911
|Sixu Li (UW-Madison)
|TBD
|-
|4/12
|VV911&Zoom
|Anjali Nair (UChicago)
|TBD
|-
|4/19
|VV911
|Jingyi Li (UW-Madison)
|TBD
|-
|5/3
|
|
|Bella Finkel (UW-Madison)
|TBD
|}
|}


==Abstracts==
==Abstracts==
'''February 2, Thomas Chandler (UW-Madison):''' Fluid anisotropy, or direction-dependent response to deformation, can be observed in biofluids like mucus or, at a larger scale, self-aligning swarms of active bacteria. A model fluid used to investigate such environments is a nematic liquid crystal. In this talk, we will use complex variables to analytically solve for the interaction between bodies immersed in liquid crystalline environments. This approach allows for the solution of a wide range of problems, opening the door to studying the role of body geometry, liquid crystal anchoring conditions, and deformability. Shape-dependent forces between bodies, surface tractions, and analogues to classical results in fluid dynamics will also be discussed.
'''March 8, Danyun He (Harvard University):''' The ability of birds to soar in the atmosphere is a fascinating scientific problem. It relies on an interplay between the physical processes governing atmospheric flows, and the capacity of birds to process cues from their environment and learn complex navigational strategies. Previous models for soaring have primarily taken advantage of thermals of ascending hot air to gain energy. Yet, it remains unclear whether energy loss due to drag can be overcome by extracting work from transient turbulent fluctuations. In this talk, I will present a recent work that we look at the alternative scenario of a glider navigating in an idealized model of a turbulent fluid where no thermals are present. First, I will show the numerical simulations of gliders navigating in a kinematic model that captures the spatio-temporal correlations of atmospheric turbulence. Energy extraction is enabled by an adaptive algorithm based on Monte Carlo tree search that dynamically filters acquired information about the flow to plan future paths. Then, I will demonstrate that for realistic parameter choices, a glider can navigate to gain height and extract energy from flow. Glider paths reflect patterns of foraging, where exploration of the flow is interspersed with bouts of energy extraction through localized spirals. As such, this work broadens our understanding of soaring, and extends the range of scenarios where soaring is known to be possible.


'''March 7th, Ang Li (UW-Madison)''': I will share my experience with postdoc and industry job applications. This talk might be helpful for those who haven’t decided between academia and industry or are considering different paths within industry since I made my own decision quite late.
==Past Semesters==
==Past Semesters==
*[[SIAM Fall 2023]]
*[[SIAM Seminar Fall 2024|Fall 2024]]
*[[SIAM Spring 2023]]
*[https://wiki.math.wisc.edu/index.php/SIAM_Spring_2024 Spring 2024]
*[[SIAM Fall 2023|Fall 2023]]
*[[SIAM Spring 2023|Spring 2023]]
*[[SIAM Seminar Fall 2022|Fall 2022]]
*[[SIAM Seminar Fall 2022|Fall 2022]]
*[[Spring 2022 SIAM|Spring 2022]]
*[[Spring 2022 SIAM|Spring 2022]]

Latest revision as of 22:47, 5 March 2025


Spring 2025

Date Location Speaker Title
03/07 9th floor Ang Li Applying for postdocs and different industry jobs ... at the

same time

04/04 Borong Zhang
04/11 Ian McPherson


Abstracts

March 7th, Ang Li (UW-Madison): I will share my experience with postdoc and industry job applications. This talk might be helpful for those who haven’t decided between academia and industry or are considering different paths within industry since I made my own decision quite late.

Past Semesters

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