Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • 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
Efficient Laplace-Domain Aerodynamics for Load Analyses
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Flight Dynamics. (Flight Dynamics)ORCID iD: 0000-0002-3199-8534
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Flight Dynamics. (Flight Dynamics)
2013 (English)Conference paper, Published paper (Refereed)
Abstract [en]

An existing finite-element solver for steady, non-linear subsonic flow is extended in order to treat unsteady potential flow problems in the Laplace domain. The numerical formulation makes use of unstructured meshes including explicitly modelled, triangulated wake surfaces. Meshes can contain both linear and quadratic volume and surface elements, thus allowing to favor either very fast solution times or high spatial resolution. Aeroelastic problems are dealt with by modelling moving or deforming bodies by means of transpiration boundary conditions. Deformations of the aerodynamic mesh are computed either by projection of aerodynamic mesh nodes onto the finite elements of a structural shell model, or by radial basis function interpolation suitable for beam-type structural models. In addition to simple validation cases, an application of the solver for the evaluation of gust loads on a commuter aircraft is presented. In order to evaluate the use of the method in the context of a relevant, industrial-scale load analysis, typical geometrical and structural models for a twin-turboprop aircraft in the 15t-class (e.g. Saab 340, CN-235, Dash 8, Do 328) are employed.

Place, publisher, year, edition, pages
Bristol, 2013.
Keyword [en]
Aeroelasticity, Flight Loads, Unsteady Aerodynamics
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-124309Scopus ID: 2-s2.0-84907301240OAI: oai:DiVA.org:kth-124309DiVA: diva2:633996
Conference
International Forum on Aeroelasticity and Structural Dynamics,24-26 June 2013, Bristol
Funder
Vinnova, DNr 2009-01340
Note

QC 20130719

Available from: 2013-06-28 Created: 2013-06-28 Last updated: 2013-07-19Bibliographically approved

Open Access in DiVA

ifasd2013-laplace-domain-loads.pdf(3038 kB)343 downloads
File information
File name FULLTEXT01.pdfFile size 3038 kBChecksum SHA-512
a616845d2531313b0d3686c3df00481096babc7595ff8c76ab9efae2c1b037847f44376ae192016963679622f9a76ebbb9fa4af3f8163457ae013fbc3eec5090
Type fulltextMimetype application/pdf

Other links

ScopusConference website

Authority records BETA

Eller, David

Search in DiVA

By author/editor
Eller, DavidJansson, Natascha
By organisation
Flight Dynamics
Engineering and Technology

Search outside of DiVA

GoogleGoogle Scholar
Total: 343 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

urn-nbn

Altmetric score

urn-nbn
Total: 118 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • 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