The Bolund Experiment, Part II: Blind Comparison of Microscale Flow Models
By Andreas Bechmann, N. N. Sørensen, J. Berg, Jakob Mann, Pierre-Elouan Réthoré. 2011
196 citations recorded by the source corpus.
Bolund measurements were used for a blind comparison of microscale flow models. Fifty-seven models ranging from numerical to physical were used, including large-eddy simulation (LES) models, Reynolds-averaged Navier–Stokes (RANS) models, and linearized models, in addition to wind-tunnel and water-channel experiments. Many assumptions of linearized models were violated when simulating the flow around Bolund. As expected, these models showed large errors. Expectations were higher for LES models. However, of the submitted LES results, all had difficulties in applying the specified boundary conditions and all had large speed-up errors. In contrast, the physical models both managed to apply undisturbed ‘free wind’ boundary conditions and achieve good speed-up results. The most successful models were RANS with two-equation closures. These models gave the lowest errors with respect to speed-up and turbulent kinetic energy (TKE) prediction.
Subfields: Computational Mechanics, Environmental Engineering
View Paper: https://www.semanticscholar.org/paper/32757a35f15e3086dc38a1b7dac3a07f3d18e19a
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In Computational Mechanics
- Jakob Mann
- H. Jørgensen
- J. Berg
- Michael Courtney
- Andreas Bechmann
- B. Blocken
- H. Montazeri
- A. Rezaeiha
In Environmental Engineering
Citations in the corpus
- Computational Fluid Dynamics for urban physics: Importance, scales, possibilities, limitations and ten tips and tricks towards accurate and reliable simulations (2015, background): “in 2011 [241] for wind flow over the small Bolund hill, a topographic feature in Denmark.”
- The Bolund Experiment, Part I: Flow Over a Steep, Three-Dimensional Hill (2011, background): “From numerical simulations, Bechmann et al. (2011) estimated the speed-down at M0 to be ≈0.5%.”