期刊
PROGRESS IN HYBRID RANS-LES MODELLING
卷 143, 期 -, 页码 97-107出版社
SPRINGER INTERNATIONAL PUBLISHING AG
DOI: 10.1007/978-3-030-27607-2_7
关键词
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资金
- Ministerio de Economia y Competitividad, Spain [ENE2017-88697-R]
- FI-DGR 2016 predoctoral contract - Generalitat de Catalunya, Spain [2018FI_B2_00072]
- Ramon y Cajal postdoctoral Contract - Ministerio de Economia y Competitividad, Spain [RYC-2012-11996]
Arecent kinematic sensitive subgrid length scale, Delta(lsq), initially developed for LES applications, is now considered for DES. Even though it is presented as a subgrid length scale, instead of a grey area mitigation (GAM) technique, this initial study shows how it could also be a good and natural approach for addressing this well-known DES shortcoming. In this paper, the Delta(lsq) has been compared with a well-known kinematic sensitive length scale, (Delta) over tilde (omega). It includes a mesh resilience and a shear layer delay study with a Decaying Homogeneous Isotropic Turbulence configuration and two Backward Facing Step configurations, respectively. Encouraging results have been obtained, indicating Delta(lsq) as a subgrid length scale to be considered.
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