URANS Study of Delft Catamaran Total/Added Resistance, Motions and Slamming Loads in Head Sea Including Irregular Wave and Uncertainty Quantification for Variable Regular Wave and Geometry (Contributo in atti di convegno)

Type

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

Label

• URANS Study of Delft Catamaran Total/Added Resistance, Motions and Slamming Loads in Head Sea Including Irregular Wave and Uncertainty Quantification for Variable Regular Wave and Geometry (Contributo in atti di convegno) (literal)

Anno

• 2012-01-01T00:00:00+01:00 (literal)

Alternative label

• Wei He, Matteo Diez, Daniele Peri, Emilio Campana, Yusuke Tahara, and Frederick Stern (2012)
  URANS Study of Delft Catamaran Total/Added Resistance, Motions and Slamming Loads in Head Sea Including Irregular Wave and Uncertainty Quantification for Variable Regular Wave and Geometry
  in 29th Symposium on Naval Hydrodynamics, Gothenburg, Sweden, 26-31 August 2012
  (literal)

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

• Wei He, Matteo Diez, Daniele Peri, Emilio Campana, Yusuke Tahara, and Frederick Stern (literal)

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

• 29th Symposium on Naval Hydrodynamics (literal)

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

• 33 (literal)

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

• IIHR-Hydroscience & Engineering, The University of Iowa, Iowa City, USA NAOCE, Shanghai Jiao Tong University, China CNR-INSEAN, Natl. Research Council-Maritime Research Centre, Rome, Italy NMRI, National Maritime Research Institute, Tokyo, Japan (literal)

Titolo

• URANS Study of Delft Catamaran Total/Added Resistance, Motions and Slamming Loads in Head Sea Including Irregular Wave and Uncertainty Quantification for Variable Regular Wave and Geometry (literal)

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

• 9780978981204 (literal)

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

• Lars Larsson (literal)

Abstract

• A methodology is assessed for uncertainty quantification (UQ) of resistance, motions and slamming loads in variable regular wave representing a given sea state, and compared to irregular wave (benchmark) and deterministic regular wave studies. UQ is conducted over joint distribution of wave period and height; irregular wave inlet boundary condition is based on wave energy spectrum; deterministic study is conducted at most probable condition. Application to the high-speed Delft Catamaran at Fr=0.5 in sea state 6 is presented and discussed. Deterministic regular wave study shows average error for design optimization-related quantities (expected values of resistance, motions amplitude and slamming loads) equal to 25%. Variable regular wave UQ shows average error close to 6%, providing in addition empirical distribution functions. Extension to uncertain design through Karhunen-Loève expansion is presented and discussed; variable geometry studies show a potential reduction of 6.5% for calm water resistance and 3.9% for resistance in wave, with small variations in motions amplitudes; an increase of 6.4% of maximum slamming load is experienced by reducedresistance geometry, revealing a trade-off between performances and loads. UQ with metamodels reveals Kriging and polyharmonic spline as the most effective metamodels overall. (literal)

Prodotto di

• Ottimizzazione dei veicoli marini (ET.P02.017.002) (Modulo)

Autore CNR

• MATTEO DIEZ (Unità di personale interno)
• EMILIO FORTUNATO CAMPANA (Unità di personale interno)
• DANIELE PERI (Unità di personale interno)

Incoming links:

Autore CNR di

• EMILIO FORTUNATO CAMPANA (Unità di personale interno)
• MATTEO DIEZ (Unità di personale interno)
• DANIELE PERI (Unità di personale interno)

Prodotto

• Ottimizzazione dei veicoli marini (ET.P02.017.002) (Modulo)