Powered by OpenAIRE graph
Found an issue? Give us feedback
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ Bollettino del CILEAarrow_drop_down
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
versions View all 2 versions
addClaim

Computational Aeroelasticity with CFD models

Authors: CAVAGNA, LUCA; QUARANTA, GIUSEPPE; RICCI, SERGIO; SCOTTI, ALESSANDRO;

Computational Aeroelasticity with CFD models

Abstract

Questo articolo fornisce una presentazione generale delle procedure numeriche che sono oggigiorno usate al Dipartimento di Ingegneria Aerospaziale del Politecnico di Milano per la aeroelasticità computazionale mediante complessi modelli di Fluidodinamica Computazionale (CFD). Nell’articolo vengono a grandi linee descritti due principali programmi di ricerca: la progettazione di un sistema di soppressione di flutter per l’ala a freccia negativa del dimostratore aeroelastico X-DIA, la valutazione del flutter transonico e le analisi di aeroelasticità statica per aeromobili ad alta velocità. Entrambe le ricerche richiedono modelli di fluido complessi ed accurati, basati sulle equazioni di Eulero o Navier-Stokes, per studiare correttamente i fenomeni di Interazione Struttura-Fluido (FSI). Per il primo caso, al fine di definire correttamente l'efficacia delle superfici di controllo e i relativi effetti viscosi, sono richieste una accurata descrizione del carico di pressione e dei momenti di cerniera; per il secondo caso, al fine di superare in questo regime di velocità le lacune delle teorie classiche basate sul potenziale linearizzato, è necessario studiare l’influenza dell’onda d’urto sui meccanismi di flutter e sul campo di pressione.

This paper gives an overview of the numerical procedures which are nowadays used at Dipartimento di Ingegneria Aerospaziale Politecnico di Milano for computational aeroelasticity by means of complex Computational Fluid Dynamics (CFD) models. Two main research programs are here outlined: the design of a flutter suppression system for the forward swept wing of the in-house aeroelastic demonstrator X-DIA, and the transonic flutter assessment and static aeroelasticity analyses for high-speed aircrafts. Both of them require an accurate and complex fluid models based on Euler or Navier-Stokes equations, to correctly investigate Fluid Structure Interaction (FSI) phenomena. For the first case, an accurate description of the pressure load and the hinge-line moments are required to correctly define control surfaces effectiveness and related viscous effects; for the second case the adoption it is necessary to investigate shock-wave influence on flutter mechanisms and pressure-field to overcome the lack of the classic linearized potential theories in this speed-regime.

Country
Italy
Keywords

Computational Fluid Dynamics; Aeroelasticity; Unsteady Aerodynamics; Grid Motion.

  • BIP!
    Impact byBIP!
    selected citations
    These citations are derived from selected sources.
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    0
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
Powered by OpenAIRE graph
Found an issue? Give us feedback
selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
bronze