Mostrar el registro sencillo del ítem
dc.contributor.author | Hoyas, S. | es_ES |
dc.contributor.author | Vinuesa, Ricardo | es_ES |
dc.contributor.author | Schmid, Peter | es_ES |
dc.contributor.author | Nagib, Hassan | es_ES |
dc.date.accessioned | 2024-09-27T18:07:54Z | |
dc.date.available | 2024-09-27T18:07:54Z | |
dc.date.issued | 2024-08-05 | es_ES |
dc.identifier.uri | http://hdl.handle.net/10251/208918 | |
dc.description.abstract | [EN] Direct numerical simulations (DNSs) are among the most powerful tools for studying turbulent flows. Even though the achievable Reynolds numbers are lower than those obtained through experimental means, DNS offers a clear advantage: The entire velocity field is known, allowing for the evaluation of any desired quantity. This capability includes the computation of derivatives of all relevant terms. One such derivative provides the indicator function, which is the product of the wall distance and the wall-normal derivative of the mean streamwise velocity. This derivative may depend on mesh spacing and distribution, but it is extremely affected by the convergence of the simulation. The indicator function is crucial for understanding inner and outer interactions in wall-bounded flows and describing the overlap region between them. We find a clear dependence of this indicator function on the mesh distributions we examine, raising questions about classical mesh and convergence requirements for DNS and achievable accuracy. Within the framework of the logarithmic plus linear overlap region, coupled with a parametric study of channel flows and some pipe flows, sensitivities of extracted overlap parameters are examined. This study reveals a path to establishing their high-Rey y or nearly asymptotic values at modest Reynolds numbers, but larger than the ones used in this work, accessible by high-quality DNS with reasonable cost. | es_ES |
dc.description.sponsorship | Computer time was provided by King Abdullah University of Science and Technology, Project No. K1652. R.V. was supported by ERC Grant No. 2021-CoG-101043998, DEEPCONTROL. The views and opinions expressed are however those of the author (s) only and do not necessarily reflect those of European Union or European Research Council. S.H. was funded by Project No. PID2021-128676OB-I00 from Ministerio de Ciencia, Innovacion y Universidades/FEDER. | es_ES |
dc.language | Inglés | es_ES |
dc.publisher | American Physical Society | es_ES |
dc.relation.ispartof | Physical Review Fluids | es_ES |
dc.rights | Reconocimiento (by) | es_ES |
dc.subject | Direct numerical simulations (DNSs) | es_ES |
dc.subject | Turbulent flows | es_ES |
dc.subject | Wall-bounded turbulence | es_ES |
dc.subject.classification | INGENIERIA AEROESPACIAL | es_ES |
dc.title | Sensitivity study of resolution and convergence requirements for the extended overlap region in wall-bounded turbulence | es_ES |
dc.type | Artículo | es_ES |
dc.identifier.doi | 10.1103/PhysRevFluids.9.L082601 | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2021-128676OB-I00/ES/REVELANDO LA TURBULENCIA DE PARED/ | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/EC/HE/101043998/EU/Discovering novel control strategies for turbulent wings through deep reinforcement learning/ | es_ES |
dc.rights.accessRights | Abierto | es_ES |
dc.description.bibliographicCitation | Hoyas, S.; Vinuesa, R.; Schmid, P.; Nagib, H. (2024). Sensitivity study of resolution and convergence requirements for the extended overlap region in wall-bounded turbulence. Physical Review Fluids. 9(8). https://doi.org/10.1103/PhysRevFluids.9.L082601 | es_ES |
dc.description.accrualMethod | S | es_ES |
dc.relation.publisherversion | https://doi.org/10.1103/PhysRevFluids.9.L082601 | es_ES |
dc.type.version | info:eu-repo/semantics/publishedVersion | es_ES |
dc.description.volume | 9 | es_ES |
dc.description.issue | 8 | es_ES |
dc.identifier.eissn | 2469-990X | es_ES |
dc.relation.pasarela | S\525494 | es_ES |
dc.contributor.funder | European Commission | es_ES |
dc.contributor.funder | Agencia Estatal de Investigación | es_ES |
dc.contributor.funder | European Regional Development Fund | es_ES |