Comparison of dynamic subgrid-scale models for simulations of neutrally buoyant shear-driven atmospheric boundary layer flows Export

@article{9245, abstract = {Several non-dynamic, scale-invariant, and scale-dependent dynamic subgrid-scale (SGS) models are utilized in large-eddy simulations of shear-driven neutral atmospheric boundary layer (ABL) flows. The popular Smagorinsky closure and an alternative closure based on Kolmogorov's scaling hypothesis are used as SGS base models. Our results show that, in the context of neutral ABL regime, the dynamic modeling approach is extremely useful, and reproduces several establised results (e.g., the surface layer similarity theory) with fidelity. The scale-dependence framework, in general, improves the near-surface statistics from the Smagorinsky model-based simulations. We also note that the local averaging-based dynamic SGS models perform significantly better than their planar averaging-based counterparts. Lastly, we find more or less consistent superiority of the Smagorinsky-based SGS models (over the corresponding Kolmogorov's scaling hypothesis-based SGS models) for predicting the inertial range scaling of spectra. {\copyright} Springer Science+Business Media B.V. 2007.}, author = {Anderson, W. C. and Basu, S. and Letchford, C. W.}, citeulike-article-id = {2710794}, citeulike-linkout-0 = {http://www.scopus.com/scopus/inward/record.url?eid=2-s2.0-34250626864&partnerID=40&rel=R7.0.0}, comment = {Cited By (since 1996): 1 ---=note-separator=--- Export Date: 23 April 2008 ---=note-separator=--- Source: Scopus}, journal = {Environmental Fluid Mechanics}, keywords = {atmospheric, boundary, large-eddy, layer, local-lib, neutral, simulation, subgrid-scale, turbulence}, number = {3}, pages = {195--215}, posted-at = {2008-04-23 23:34:48}, priority = {0}, title = {Comparison of dynamic subgrid-scale models for simulations of neutrally buoyant shear-driven atmospheric boundary layer flows}, url = {http://www.scopus.com/scopus/inward/record.url?eid=2-s2.0-34250626864&partnerID=40&rel=R7.0.0}, volume = {7}, year = {2007} }

TY - JOUR ID - 9245 L3 - citeulike-article-id:2710794 N2 - Several non-dynamic, scale-invariant, and scale-dependent dynamic subgrid-scale (SGS) models are utilized in large-eddy simulations of shear-driven neutral atmospheric boundary layer (ABL) flows. The popular Smagorinsky closure and an alternative closure based on Kolmogorov's scaling hypothesis are used as SGS base models. Our results show that, in the context of neutral ABL regime, the dynamic modeling approach is extremely useful, and reproduces several establised results (e.g., the surface layer similarity theory) with fidelity. The scale-dependence framework, in general, improves the near-surface statistics from the Smagorinsky model-based simulations. We also note that the local averaging-based dynamic SGS models perform significantly better than their planar averaging-based counterparts. Lastly, we find more or less consistent superiority of the Smagorinsky-based SGS models (over the corresponding Kolmogorov's scaling hypothesis-based SGS models) for predicting the inertial range scaling of spectra. © Springer Science+Business Media B.V. 2007. IS - 3 JF - Environmental Fluid Mechanics EP - 215 TI - Comparison of dynamic subgrid-scale models for simulations of neutrally buoyant shear-driven atmospheric boundary layer flows VL - 7 SP - 195 KW - atmospheric KW - boundary KW - large-eddy KW - layer KW - local-lib KW - neutral KW - simulation KW - subgrid-scale KW - turbulence N1 - Cited By (since 1996): 1 N1 - Export Date: 23 April 2008 N1 - Source: Scopus AU - Anderson, WC AU - Basu, S AU - Letchford, CW PY - 2007/// UR - http://www.scopus.com/scopus/inward/record.url?eid=2-s2.0-34250626864&partnerID=40&rel=R7.0.0 ER -