LE-DM introduces dynamic masking via signed-distance functions to enforce boundary kinematics in a single constrained solve for divergence-free velocity reconstruction around moving solids in volumetric PTV.
From Particle Tracks to Velocity and Acceleration Fields Using B-Splines and Penalties
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abstract
In this work a method for reconstructing velocity and acceleration fields is described which uses scattered particle tracking data from flow experiments as input. The goal is to reconstruct these fields faithfully with a limited amount of compute time and exploit known flow properties such as a divergence-free velocity field for incompressible flows and a rotation-free acceleration in case it is known to be dominated by the pressure gradient in order to improve the spatial resolution of the reconstruction.
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physics.flu-dyn 1years
2026 1verdicts
UNVERDICTED 1representative citing papers
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Dynamic masking for boundary-aware velocity reconstruction in volumetric particle tracking with moving solids
LE-DM introduces dynamic masking via signed-distance functions to enforce boundary kinematics in a single constrained solve for divergence-free velocity reconstruction around moving solids in volumetric PTV.