Coupling time-stepping numerical methods and standard aerodynamics codes for instability analysis of flows in complex geometries

Gómez Carrasco, Francisco; Gómez, Raquel y Theofilis, Vassilios (2011). Coupling time-stepping numerical methods and standard aerodynamics codes for instability analysis of flows in complex geometries. En: "6th Theoretical Fluid Mechanics Conference", 27/06/2011 - 30/06/2011, Honolulu, Hawaii. ISBN 978-1-62410-144-1. pp..

Descripción

Título: Coupling time-stepping numerical methods and standard aerodynamics codes for instability analysis of flows in complex geometries
Autor/es:
  • Gómez Carrasco, Francisco
  • Gómez, Raquel
  • Theofilis, Vassilios
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: 6th Theoretical Fluid Mechanics Conference
Fechas del Evento: 27/06/2011 - 30/06/2011
Lugar del Evento: Honolulu, Hawaii
Título del Libro: Proceedings of 6th Theoretical Fluid Mechanics Conference
Fecha: 2011
ISBN: 978-1-62410-144-1
Materias:
Escuela: E.T.S.I. Aeronáuticos (UPM) [antigua denominación]
Departamento: Motopropulsión y Termofluidodinámica [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

The development of a global instability analysis code coupling a time-stepping approach, as applied to the solution of BiGlobal and TriGlobal instability analysis 1, 2 and finite-volume-based spatial discretization, as used in standard aerodynamics codes is presented. The key advantage of the time-stepping method over matrix-formulation approaches is that the former provides a solution to the computer-storage issues associated with the latter methodology. To-date both approaches are successfully in use to analyze instability in complex geometries, although their relative advantages have never been quantified. The ultimate goal of the present work is to address this issue in the context of spatial discretization schemes typically used in industry. The time-stepping approach of Chiba 3 has been implemented in conjunction with two direct numerical simulation algorithms, one based on the typically-used in this context high-order method and another based on low-order methods representative of those in common use in industry. The two codes have been validated with solutions of the BiGlobal EVP and it has been showed that small errors in the base flow do not have affect significantly the results. As a result, a three-dimensional compressible unsteady second-order code for global linear stability has been successfully developed based on finite-volume spatial discretization and time-stepping method with the ability to study complex geometries by means of unstructured and hybrid meshes

Más información

ID de Registro: 13084
Identificador DC: http://oa.upm.es/13084/
Identificador OAI: oai:oa.upm.es:13084
URL Oficial: http://arc.aiaa.org/doi/book/10.2514/MTFC11
Depositado por: Memoria Investigacion
Depositado el: 04 Dic 2012 09:45
Ultima Modificación: 21 Abr 2016 12:23
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