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CFD analysis of a glider aircraft: Using different RANS solvers and introducing improvements in the design
Linköping University, Department of Management and Engineering, Applied Thermodynamics and Fluid Mechanics.
2019 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

In this study, Computational Fluid Dynamics (CFD) simulations have been carried out in order to investigate and improve the performance of the Standard Cirrus glider, using different Navier-Stokes methods and solving the equations for the steady flow. The work has been divided in two parts:

First, a study is performed to test the quality of the transition model (Gamma-ReTheta). The two dimensional results of the glider´s airfoil are compared against the results from panel’s methods and the open-source CFD codes: SU2 and OpenFoam. In addition, three dimensional glider´s models are simulated using the transition model with the purpose of creating a validated reference model of the glider’s performance in steady level flight. The simulations are carried out in two dimensions for the outer wing airfoil for a 1.5 e+06 Reynolds number and in three dimensions for the Wing & Fuselage model and Tail & Fuselage model under a range of velocities. Both simulations are validated against experimental data.

In the second part of the study, the validated model is used to developed possible improvements in the glider´s external geometry that could produce possible benefits in the performance and handling qualities of the glider.

Place, publisher, year, edition, pages
2019. , p. 78
Keywords [en]
CFD, RANS, Standard Cirrus, glider, Fluent, SU2, OpenFOAM, SST, transition, winglet.
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-159995ISRN: LIU-IEI-TEK-G--19/01696—SEOAI: oai:DiVA.org:liu-159995DiVA, id: diva2:1347614
Subject / course
Aeronautical Engineering
Presentation
2019-06-19, Linköping, 12:00 (English)
Supervisors
Examiners
Available from: 2019-09-04 Created: 2019-09-01 Last updated: 2019-09-04Bibliographically approved

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CiteExportLink to record
Permanent link

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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf