Scalar and tensor spherical harmonics expansion of the velocity correlation in homogeneous anisotropic turbulence
Journal Article
·
· Journal of Turbulence (Online)
- NASA Langley Research Center, Hampton, VA (United States)
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Ecole Centrale de Lyon, Ecully Cedex (France)
The representation theory of the rotation group is applied to construct a series expansion of the correlation tensor in homogeneous anisotropic turbulence. The resolution of angular dependence is the main analytical difficulty posed by anisotropic turbulence; representation theory parametrises this dependence by a tensor analogue of the standard spherical harmonics expansion of a scalar. As a result, the series expansion is formulated in terms of explicitly constructed tensor bases with scalar coefficients determined by angular moments of the correlation tensor.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE
- Grant/Contract Number:
- AC52-06NA25396
- OSTI ID:
- 1227460
- Report Number(s):
- LA-UR--15-20047
- Journal Information:
- Journal of Turbulence (Online), Journal Name: Journal of Turbulence (Online) Journal Issue: 11 Vol. 16; ISSN 1468-5248
- Country of Publication:
- United States
- Language:
- English
Advanced spectral anisotropic modelling for shear flows
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journal | June 2018 |
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