Bulletin of the American Physical Society
76th Annual Meeting of the Division of Fluid Dynamics
Sunday–Tuesday, November 19–21, 2023; Washington, DC
Session L44: Waves: Nonlinear Dynamics and Turbulence
8:00 AM–10:36 AM,
Monday, November 20, 2023
Room: 208AB
Chair: Alexander Hrabski, University of Michigan
Abstract: L44.00001 : Fully-developed Wave Turbulence in the Numerical Kinetic Limit*
8:00 AM–8:13 AM
Presenter:
Alexander A Hrabski
(Los Alamos National Laboratory)
Authors:
Alexander A Hrabski
(Los Alamos National Laboratory)
Yulin Pan
(University of Michigan)
In this work, we perform a series of high-resolution numerical experiments of fully-developed WT that approximate the kinetic limit. We first compute the full PDFs of instantaneous inter-scale energy flux and dissipation rate. Then, using an interaction-based decomposition of the energy cascade, we quantify the role of resonant interactions in shaping the WT closure. We conclude with a study of stationary spectra and the Kolmogorov constant. At each stage, we draw connections to theoretical predictions.
*This material is based upon work supported by the National Science Foundation Graduate Research Fellowship Program under Grant No. DGE 1841052. Also, this work used Bridges-2 at the Pittsburgh Supercomputing Center through allocation phys220115 from the Advanced Cyberinfrastructure Coordination Ecosystem: Services & Support (ACCESS) program, which is supported by National Science Foundation grants #2138259, #2138286, #2138307, #2137603, and #2138296.
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