Feldmann, Daniel; Umair, Mohammad; Avila, Marc; von Kameke, Alexandra (2025): Pipe flow simulation data illustrating the influence of filter kernels on the scale-energetics of near-wall turbulence [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.982843
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Published: 2025-09-01 • DOI registered: 2025-10-18
Abstract:
Originally developed for large-eddy simulation (LES) modelling and error estimation, the concept of inter-scale energy fluxes, π λ, is now widely used as a diagnostic tool to study how energy is transferred across different length scales, λ, in high-resolution turbulence data---independent of LES modelling. In Feldmann et al. (2025), we examine how the choice of filter kernel affects the computed energy fluxes and their interpretation when π is used in post-processing to explore scale interactions in near-wall turbulence. To this end, spatial filtering is applied to a turbulent pipe flow simulation using three commonly used kernels: sharp spectral, Gaussian, and box. The dataset enables a detailed comparison of how these different filters influence both the local structure and statistical characteristics of π at constant filter width. These data support the findings presented in Feldmann et al. (2025) and are provided to facilitate further studies on filtering effects and energy transfer in wall-bounded turbulent flows. This dataset includes velocity fields and energy flux fields based on three different filter kernels, as well as one- and two-point statistics for all field data sets.
Keyword(s):
References:
Feldmann, Daniel; Umair, Mohammad; Avila, Marc; von Kameke, Alexandra (preprint): Effect of filter kernel on scale-energetics of near-wall turbulent structures. arXiv, https://doi.org/10.48550/ARXIV.2008.03535
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Binary Object | Binary | Feldmann, Daniel | Numerical simulated | ||
| 2 | Binary Object (File Size) | Binary (Size) | Bytes | Feldmann, Daniel | Numerical simulated | |
| 3 | File format | File format | Feldmann, Daniel | Numerical simulated | ||
| 4 | Figure | Fig | Feldmann, Daniel | Numerical simulated | ||
| 5 | Title | Title | Feldmann, Daniel | Numerical simulated | ||
| 6 | Description | Description | Feldmann, Daniel | Numerical simulated |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 2 (ProcLevel2)
Size:
55 data points