A correlation study of computational techniques of a three-pass perforated tube muffler including FEM and 1D methods (Contributo in atti di convegno)

Type

• Contributo in atti di convegno (Classe)
• Prodotto della ricerca (Classe)

Label

• A correlation study of computational techniques of a three-pass perforated tube muffler including FEM and 1D methods (Contributo in atti di convegno) (literal)

Anno

• 2009-01-01T00:00:00+01:00 (literal)

Alternative label

• Siano D. 1, Auriemma F. 2, Bozza F. 2 (2009)
  A correlation study of computational techniques of a three-pass perforated tube muffler including FEM and 1D methods
  in 3rd Int. Conference on Sustainable Energy & Environmental Protection – SEEP2009, Dublin (Ireland), 2009
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Siano D. 1, Auriemma F. 2, Bozza F. 2 (literal)

Pagina inizio

• 301 (literal)

Pagina fine

• 306 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note

• pp. 301-306 (ISBN 978-0-9555781-2-0). (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#descrizioneSinteticaDelProdotto

• Automotive exhaust systems give a major contribution to the sound quality of a vehicle and must be properly designed in order to produce acceptable acoustic performances. Obviously, noise attenuation is strictly related to the internal gas-dynamic field that, on the other hand, needs to be optimised also in terms of pressure losses. In this work, the noise attenuation characteristics of a perforated muffler are investigated. Acoustic performances are specified at the component level as attenuation versus frequency (Transmission Loss), depending on the characteristics of the component itself. To this end different numerical analyses are employed. At first, a one dimensional simulation code (GT PowerTM) is used to examine the influence of high temperature gas flow on the acoustic attenuation performance of thè muffler, within the plane wave region. A more complex 3D FEM/BEM approach, is also realised using the VNOISETM code, specifically designed for acoustic applications. Obviously, such analysis allows to obtain more accurate results at high frequency, hardly depending on the mesh size. Different flow velocities and gas temperatures are investigated, too. The Transmission Loss factor obtained from such approaches is, then, compared and their potentiality and limitations are discussed (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• 1) Istituto Motori, CNR, Napoli, Italy; 2) DIME, Università di Napoli \"Federico II\", Italy. (literal)

Titolo

• A correlation study of computational techniques of a three-pass perforated tube muffler including FEM and 1D methods (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#isbn

• 978-0-9555781-2-0 (literal)

Prodotto di

• Istituto motori (IM) (Istituto)
• Strategie per l’ottimizzazione della combustione per motori a basse emissioni (ET.P02.004.001) (Modulo)

Autore CNR

• Fabio Auriemma (Unità di personale esterno)
• FABIO BOZZA (Unità di personale esterno)
• DANIELA SIANO (Persona)

Insieme di parole chiave

• Parole chiave di "A correlation study of computational techniques of a three-pass perforated tube muffler including FEM and 1D methods" (Insieme di parole chiave)

Incoming links:

Prodotto

• Istituto motori (IM) (Istituto)
• Strategie per l’ottimizzazione della combustione per motori a basse emissioni (ET.P02.004.001) (Modulo)

Autore CNR di

• DANIELA SIANO (Persona)
• FABIO BOZZA (Unità di personale esterno)
• Fabio Auriemma (Unità di personale esterno)

Insieme di parole chiave di

• Parole chiave di "A correlation study of computational techniques of a three-pass perforated tube muffler including FEM and 1D methods" (Insieme di parole chiave)