Accession Number:

AD1103121

Title:

Multi-scale Higher Order Methods for Underresolved Simulations Useful in Turbulence Modelling

Descriptive Note:

Technical Report,15 Sep 2018,14 Sep 2019

Corporate Author:

UNIVERSITY OF EAST ANGLIA NORWICH United Kingdom

Personal Author(s):

Report Date:

2020-04-10

Pagination or Media Count:

9.0

Abstract:

Mathematically rigorous techniques that are tailored for and integrated into specific application areas are necessary from both a mathematical and engineering perspective. One of these application areas is that of simulating turbulence. Simulating turbulence requires resolution of a significant range of scales, such as fine dissipative scales and scales containing most of the kinetic energy. These problems are found in atmospheric modelling as well as traditional aerodynamic applications. One of the key ingredients in simulating turbulence is that of passing numerical information from fine scales to coarse scales. That is, multi-scalemulti-resolution information. This proposal focuses on isolating the numerical errors in passing information between scales. This one-year initial phase established how the errors are improved when combining accuracy-enhancing post-processing with multi-resolution analysis.

Subject Categories:

  • Fluid Mechanics
  • Numerical Mathematics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE