Sensitivity analysis of supersonic turbine trailing edges

Martinez-Cava Aguilar, Alejandro and Valero, Eusebio and Vicente, Javier de (2018). Sensitivity analysis of supersonic turbine trailing edges. In: "6th. European Conference on Computational Mechanics . 7th. European Conference on computational Fluid Dynamics", 11-15 jun 2018, Gasglow. ISBN 978-84-947311-6-7. pp. 502-518.

Description

Title: Sensitivity analysis of supersonic turbine trailing edges
Author/s:
  • Martinez-Cava Aguilar, Alejandro
  • Valero, Eusebio
  • Vicente, Javier de
Item Type: Presentation at Congress or Conference (Article)
Event Title: 6th. European Conference on Computational Mechanics . 7th. European Conference on computational Fluid Dynamics
Event Dates: 11-15 jun 2018
Event Location: Gasglow
Title of Book: ECCM 6 - ECFD 7 2018 : Proceedings
Date: 2018
ISBN: 978-84-947311-6-7
Subjects:
Freetext Keywords: BiGlobal; Sensitivity; Turbomachinery; Stability analysis
Faculty: E.T.S. de Ingeniería Aeronáutica y del Espacio (UPM)
Department: Matemática Aplicada a la Ingeniería Aeroespacial
Creative Commons Licenses: Recognition - No derivative works - Non commercial

Full text

[img]
Preview
PDF - Requires a PDF viewer, such as GSview, Xpdf or Adobe Acrobat Reader
Download (2MB) | Preview

Abstract

The use of compact architectures on aircraft turbine engines challenges the design and management of structural and thermal load requirements. Even operating in subsonic conditions, supersonic regimes may develop at the high pressure turbine pas- sages, experiencing complex compression and expansion wave systems that interact with adjacent stages of the turbine. When cooling flow is ejected through the blade trailing edge slots, non-symmetrical configurations can appear due to the interaction of the in- jected flow with the surrounding flow field, leading to undesired loads and efficiency loses. In this work, a combination of RANS simulations, global stability and sensitivity analy- sis is employed to identify and explain the physical mechanisms of this phenomenon. A global mode associated with the geometrical expansion of the trailing edge slot is iden- tified, and linked to the non-symmetrical configurations. To conclude, the regions where the flow would be more sensitive to flow modifications to excite or damp this phenomena are identified throughout an adjoint approximation.

Funding Projects

TypeCodeAcronymLeaderTitle
Horizon 2020675008SSeMIDUNIVERSIDAD POLITECNICA DE MADRIDStability and Sensitivity Methods for Industrial Design

More information

Item ID: 54308
DC Identifier: http://oa.upm.es/54308/
OAI Identifier: oai:oa.upm.es:54308
Official URL: http://www.eccm-ecfd2018.org/frontal/docs/Ebook-Glasgow-2018-ECCM-VI-ECFD-VII.pdf
Deposited by: Memoria Investigacion
Deposited on: 08 Apr 2019 09:47
Last Modified: 08 Apr 2019 09:47
  • Logo InvestigaM (UPM)
  • Logo GEOUP4
  • Logo Open Access
  • Open Access
  • Logo Sherpa/Romeo
    Check whether the anglo-saxon journal in which you have published an article allows you to also publish it under open access.
  • Logo Dulcinea
    Check whether the spanish journal in which you have published an article allows you to also publish it under open access.
  • Logo de Recolecta
  • Logo del Observatorio I+D+i UPM
  • Logo de OpenCourseWare UPM