Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/20.500.12666/906
Registro completo de metadatos
Campo DC Valor Idioma
dc.rights.licenseCopyright © 2019, Springer Science Business Media, LLC, part of Springer Naturees
dc.contributor.authorLozano, Carloses
dc.date.accessioned2023-12-04T09:08:20Z-
dc.date.available2023-12-04T09:08:20Z-
dc.date.issued2019-11-11-
dc.identifier.citationJournal of Scientific Computing 81: 2447–2483(2019)es
dc.identifier.issn0885-7474-
dc.identifier.otherhttps://link.springer.com/article/10.1007/s10915-019-01092-0es
dc.identifier.urihttp://hdl.handle.net/20.500.12666/906-
dc.descriptionLozano, C. Entropy and Adjoint Methods. J Sci Comput 81, 2447–2483 (2019). https://doi.org/10.1007/s10915-019-01092-0es
dc.description.abstractAerodynamic drag can be partially approximated by the entropy flux across fluid domain boundaries with a formula due to Oswatitsch. In this paper, we build the adjoint solution that corresponds to this representation of the drag and investigate its relation to the entropy variables, which are linked to the integrated residual of the entropy transport equation. For inviscid isentropic flows, the resulting adjoint variables are identical to the entropy variables, an observation originally due to Fidkowski and Roe, while for non-isentropic flows there is a significant difference that is explicitly demonstrated with analytic solutions in the shocked quasi-1D case. Both approaches are also investigated for viscous and inviscid flows in two and three dimensions, where the adjoint equations and boundary conditions are derived. The application of both approaches to mesh adaptation is investigated, with especial emphasis on inviscid flows with shocks.es
dc.description.sponsorshipThis work has been supported by INTA and the Spanish Ministry of Defence under the research program “Termofluidodinámica” (IGB99001). The 2D and 3D computations were carried out with the TAU Code, developed at DLR’s Institute of Aerodynamics and Flow Technology at Göttingen and Braunschweig, which is licensed to INTA through a research and development cooperation agreement.es
dc.language.isoenges
dc.publisherSpringer Linkes
dc.subjectAdjointes
dc.subjectOswatitsch drag formulaes
dc.subjectEntropy variableses
dc.subjectError estimationes
dc.titleEntropy and adjoint methodses
dc.typeinfo:eu-repo/semantics/articlees
dc.identifier.doi10.1007/s10915-019-01092-0-
dc.identifier.e-issn1573-7691-
dc.contributor.funderInstituto Nacional de Técnica Aeroespacial (INTA)es
dc.description.peerreviewedPeerreviewes
dc.type.hasVersioninfo:eu-repo/semantics/acceptedVersiones
dc.rights.accessRightsinfo:eu-repo/semantics/restrictedAccesses
dc.type.coarhttp://purl.org/coar/resource_type/c_6501es
Aparece en las colecciones: (Aeronáutica) Artículos

Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
Entropy and adjoint methods.pdf6,99 MBAdobe PDFVista previa
Visualizar/Abrir


Los ítems de Digital.INTA están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.