# Band limited correlation estimates for A(ξω/U) and B(ηω/U) using Beresh et. al. 2013 data sets

_{nb}/U) and B (ηω

_{nb}/ U) where ω

_{nb}denotes the narrow band frequency, i.e. the band center frequency value and ξ and η are sensors spacing in streamwise/longitudinal and cross-stream/lateral directions, respectively. A methodology to estimate the parameters which retains the Corcos exponential functional form, A(ξω/U)=exp(-k

_{lat}ηω/U) but identifies new parameters (constants) consistent with the Beresh et. al. data sets is discussed. The Corcos result requires that the data be properly explained by self-similar variable: ξω/U and ηω/U. The longitudinal (streamwise) variable ξω/U tends to provide a better data collapse, while, consistent with the literature the lateral ηω/U is only successful for higher band center frequencies. Assuming the similarity variables provide a useful description of the data, the longitudinal coherence decay constant result using the Beresh et. al. data sets yields a value for the longitudinal constant k

_{long}≈0.36-0.28 that ismore »

- Publication Date:

- OSTI Identifier:
- 1204087

- Report Number(s):
- SAND2014-1123

499213

- DOE Contract Number:
- AC04-94AL85000

- Resource Type:
- Technical Report

- Research Org:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

- Sponsoring Org:
- USDOE National Nuclear Security Administration (NNSA)

- Country of Publication:
- United States

- Language:
- English