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pro vyhledávání: '"Grauer, Samuel J"'
Neural optical flow (NOF) offers improved accuracy and robustness over existing OF methods for particle image velocimetry (PIV). Unlike other OF techniques, which rely on discrete displacement fields, NOF parameterizes the physical velocity field usi
Externí odkaz:
http://arxiv.org/abs/2411.02373
Autor:
Molnar, Joseph P., LaLonde, Elijah J., Combs, Christopher S., Léon, Olivier, Donjat, David, Grauer, Samuel J.
We report a novel "cone-ray" model of background-oriented schlieren (BOS) imaging that accounts for depth-of-field effects. Reconstructions of the density field performed with this model are far more robust to the blur associated with a finite apertu
Externí odkaz:
http://arxiv.org/abs/2402.15954
Autor:
Zhou, Ke, Grauer, Samuel J.
This text describes a method to simultaneously reconstruct flow states and determine particle properties from Lagrangian particle tracking (LPT) data. LPT is a popular measurement strategy for fluids in which particles in a flow are illuminated, imag
Externí odkaz:
http://arxiv.org/abs/2311.09076
Particle tracking velocimetry (PTV) is widely used to measure time-resolved, three-dimensional velocity and pressure fields in fluid dynamics research. Inaccurate localization and tracking of particles is a key source of error in PTV, especially for
Externí odkaz:
http://arxiv.org/abs/2211.17236
Autor:
Molnar, Joseph P., Venkatakrishnan, Lakshmi, Schmidt, Bryan E., Sipkens, Timothy A., Grauer, Samuel J.
We report a new workflow for background-oriented schlieren (BOS), termed "physics-informed BOS," to extract density, velocity, and pressure fields from a pair of reference and distorted images. Our method uses a physics-informed neural network (PINN)
Externí odkaz:
http://arxiv.org/abs/2208.04280
Autor:
Molnar, Joseph P., Grauer, Samuel J.
We report a new approach to flow field tomography that uses the Navier-Stokes and advection-diffusion equations to regularize reconstructions. Tomography is increasingly employed to infer 2D or 3D fluid flow and combustion structures from a series of
Externí odkaz:
http://arxiv.org/abs/2108.09247
Publikováno v:
In Theoretical and Applied Mechanics Letters March 2024 14(2)
Autor:
Bauer, Florian J., Braeuer, Phillipp A.B., Wilke, Marius W.R., Will, Stefan, Grauer, Samuel J.
Publikováno v:
In Combustion and Flame December 2023 258 Part 1
Publikováno v:
In Progress in Energy and Combustion Science January 2023 94
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