Bulletin of the American Physical Society
76th Annual Meeting of the Division of Fluid Dynamics
Sunday–Tuesday, November 19–21, 2023; Washington, DC
Session A14: Biofluids: Low Re Swimming I
8:00 AM–9:57 AM,
Sunday, November 19, 2023
Room: 144AB
Chair: Hoa Nguyen, Trinity University
Abstract: A14.00002 : Finding optimal computational parameters for the method of images for regularized Stokeslet*
8:13 AM–8:26 AM
Presenter:
Hoa Nguyen
(Trinity University)
Authors:
Hoa Nguyen
(Trinity University)
Amelia Gibbs
(Trinity University)
Ricardo Cortez
(Tulane University)
Bruce E Rodenborn
(Centre College)
Orrin Shindell
(Trinity University)
Frank Healy
(Trinity University)
Collaborations:
Amelia Gibbs, Ricardo Cortez, Bruce Rodenborn, Orrin Shindell, Frank Healy
We discover that the surface discretization called spherical centroidal Voronoi tessellations (SCVT) is the most accurate and robust for all motions when we compare SCVT with discretizations whose point distributions on the sphere’s surface are symmetric with respect to the boundary. Depending on which regularization function is used in the MIRS, we find a constant ratio, for all motions, of the optimal regularization parameter in free space to the average distance used in the SCVT discretization. Our study reveals how the discretization type and size, optimal regularization parameter, and regularization function affect the accuracy and robustness of sphere-motion simulations.
*NSF PHY-2210609NSF PHY-2210610NSF MRI-1531594NSF DMS-2054259
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