Coherent-Vorticity-Preserving (CvP) Large-Eddy Simulations (LES) of Very-High-Reynolds-Number Vortex Dynamics

reportActive / Technical Report | Accesssion Number: AD1206604 | Open PDF

Abstract:

The goals of the current proposal are to unravel the physics of very-high-Reynolds-number vortex dynamics by exploiting a new computational technique called coherent-vorticity-preserving (CvP) large-eddy simulation (LES). The CvP-LES technique relies on a very fast evaluation of the local state of spectral broadening based on the application of Kolmogorovs K41 Theory to the filtered enstrophy field. Contrary to popular dynamic models, it only requires one additional filtering operation and very minimal memory overhead, requiring the storage of one extra three-dimensional field.

Author(s):
Scalo, Carlo ; Zhao, Xinran ; Chapelier, Jean-baptiste ; Lucarelli, Nicola M
Author Organization(s):
PURDUE UNIV LAFAYETTE IN
Funding Organization(s):
ARMY RESEARCH LAB RESEARCH TRIANGLE PARK NC, RESEARCH TRIANGLE PARK, NC
Document Type:
Technical Report/Final Report
Publication Date:
2021 Sep 09
Pagination:
45

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution Code:
A - Approved For Public Release
Distribution Statement: Public Release.
Copyright: Not Copyrighted

RECORD

Collection: TRECMS
Subject Terms
Subject Categories:
Mathematical and Computer Sciences; Physics
Modernization Areas:
Hypersonics
Communities of Interest:
; ; ;
Descriptor(s):
computational fluid dynamics, fluid dynamics, boundary layer, standing waves, mechanical engineering, fluid mechanics, fluid flow, large eddy simulation, mechanics, turbulent flow, mechanical properties, turbulent mixing, reynolds number, three dimensional, energy transfer, numerical analysis, topology
Creation Date:
2023 Jul 26
Update Date:
2023 Oct 02