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DTSTART:20250330T030000
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DTSTAMP:20260424T062951Z
UID:1740418200@ist.ac.at
DTSTART:20250224T183000
DTEND:20250224T193000
DESCRIPTION:Speaker: Peter Heiss Synak\nhosted by Caroline Muller\nAbstract
 : Simulating fluids with non-manifold geometries presents a number of intr
 iguing challenges. In my defense talk\, I will discuss two projects in thi
 s area. In the first part\, I will detail our surface-only algorithm for s
 imulating the dynamics of a cluster of soap bubbles\, both in terms of the
 ir large-scale shape and the evolution of their small-scale thickness. Cou
 pling these motions at the very different length scales allows us to produ
 ce animations with bubbles popping and rearranging\, while on their surfac
 e we observe swirling color vortices\, rainbow interference patterns\, and
  capillary waves. Bubble clusters form non-manifold structures\, and as su
 ch\, we have to be able to evaluate our equations of motion at non-manifol
 d junctions. In the second part of my talk\, I will discuss topological pr
 ocessing of non-manifold meshes in simulation. Mesh geometries representin
 g soft matter can easily enter faulty states during simulation\, such as c
 olliding\, inverting\, self-overlapping and more\, making it necessary to 
 occasionally correct mesh topology to maintain physical plausibility. I wi
 ll describe the algorithm we developed to tackle this problem in a non-man
 ifold setting\, such as when simulating bubble clusters. Our approach comb
 ines the ability to preserve surface details\, similar to mesh-based metho
 ds\, while reliably handling diverse topological changes\, similar to leve
 l set methods. I will also touch on the aspects that make our algorithm nu
 merically robust.
LOCATION:Moonstone Bldg / Ground floor / Seminar Room F (I24.EG.030f) and Z
 oom\, ISTA
ORGANIZER:
SUMMARY:Peter Heiss Synak: Thesis Defense: Methods for Fluid Simulation\, S
 urface Tracking\, and Statistics of Non-Manifold Structures
URL:https://talks-calendar.ista.ac.at/events/5569
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