dc.identifier.uri |
http://dx.doi.org/10.15488/12658 |
|
dc.identifier.uri |
https://www.repo.uni-hannover.de/handle/123456789/12758 |
|
dc.contributor.author |
Dai, Yi
|
|
dc.contributor.author |
Basu, Sukanta
|
|
dc.contributor.author |
Maronga, Björn
|
|
dc.contributor.author |
de Roode, Stephan R.
|
|
dc.date.accessioned |
2022-08-04T08:31:59Z |
|
dc.date.available |
2022-08-04T08:31:59Z |
|
dc.date.issued |
2020 |
|
dc.identifier.citation |
Dai, Y.; Basu, S.; Maronga, B.; de Roode, S.R.: Addressing the Grid-Size Sensitivity Issue in Large-Eddy Simulations of Stable Boundary Layers. In: Boundary-Layer Meteorology 178 (2021), S. 63-89. DOI: https://doi.org/10.1007/s10546-020-00558-1 |
|
dc.description.abstract |
We have identified certain fundamental limitations of a mixing-length parametrization used in a popular turbulent kinetic energy-based subgrid-scale model. Replacing this parametrization with a more physically realistic one significantly improves the overall quality of the large-eddy simulation (LES) of stable boundary layers. For the range of grid sizes considered here (specifically, 1 m–12.5 m), the revision dramatically reduces the grid-size sensitivity of the simulations. Most importantly, the revised scheme allows us to reliably estimate the first- and second-order statistics of a well-known LES intercomparison case, even with a coarse grid size of O(10 m). |
eng |
dc.language.iso |
eng |
|
dc.publisher |
Dordrecht [u.a.] : Springer Science + Business Media B.V |
|
dc.relation.ispartofseries |
Boundary-Layer Meteorology 178 (2021) |
|
dc.rights |
CC BY 4.0 Unported |
|
dc.rights.uri |
https://creativecommons.org/licenses/by/4.0/ |
|
dc.subject |
Boundary layers |
eng |
dc.subject |
Kinetic energy |
eng |
dc.subject |
Kinetics |
eng |
dc.subject |
Turbulent flow |
eng |
dc.subject |
Fundamental limitations |
eng |
dc.subject |
Intercomparisons |
eng |
dc.subject |
Overall quality |
eng |
dc.subject |
Parametrizations |
eng |
dc.subject |
Second order statistics |
eng |
dc.subject |
Stable boundary layer |
eng |
dc.subject |
Sub-grid scale models |
eng |
dc.subject |
Turbulent kinetic energy |
eng |
dc.subject |
Large eddy simulation |
eng |
dc.subject |
Buoyancy length scale |
eng |
dc.subject |
Prandtl number |
eng |
dc.subject |
Stable boundary layer |
eng |
dc.subject |
Subgrid-scale model |
eng |
dc.subject.ddc |
550 | Geowissenschaften
|
ger |
dc.title |
Addressing the Grid-Size Sensitivity Issue in Large-Eddy Simulations of Stable Boundary Layers |
|
dc.type |
Article |
|
dc.type |
Text |
|
dc.relation.essn |
1573-1472 |
|
dc.relation.issn |
0006-8314 |
|
dc.relation.doi |
https://doi.org/10.1007/s10546-020-00558-1 |
|
dc.bibliographicCitation.volume |
178 |
|
dc.bibliographicCitation.date |
2021 |
|
dc.bibliographicCitation.firstPage |
63 |
|
dc.bibliographicCitation.lastPage |
89 |
|
dc.description.version |
publishedVersion |
|
tib.accessRights |
frei zug�nglich |
|