CFD-based multiobjective stochastic optimization of a waterjet propelled high speed ship (Contributo in atti di convegno)

Type
Label
  • CFD-based multiobjective stochastic optimization of a waterjet propelled high speed ship (Contributo in atti di convegno) (literal)
Anno
  • 2014-01-01T00:00:00+01:00 (literal)
Alternative label
  • Yusuke Tahara, Matteo Diez, Silvia Volpi, Xi Chen, Emilio Campana, Frederick Stern (2014)
    CFD-based multiobjective stochastic optimization of a waterjet propelled high speed ship
    in 30th Symposium on Naval Hydrodynamics, Hobart, Tasmania, Australia, 2-7 November 2014, Hobart, 2-7 November 2014
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Yusuke Tahara, Matteo Diez, Silvia Volpi, Xi Chen, Emilio Campana, Frederick Stern (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • NMRI, National Maritime Research Institute, Japan, IIHR-Hydroscience & Engineering, The University of Iowa, US CNR-INSEAN, Natl. Research Council-Marine Technology Research Institute, Italy Huazhong University of Science and Technology, PR China (literal)
Titolo
  • CFD-based multiobjective stochastic optimization of a waterjet propelled high speed ship (literal)
Abstract
  • he paper describes the development and demonstration of Simulation Based Design (SBD) methods, which have been developed through the long-term international collaboration among three institutes. The methods are capable to solve stochastic optimization problems, and results for Robust Design Optimization (RDO) and Reliability-Based Robust Design Optimization (RBRDO) are presented. Non- gradient type, global optimization algorithms are applied, based on the success demonstrated in authors' recent studies. In addition, the concepts of Variable Fidelity/Physics approach are adopted, that is, both Unsteady RANS and Potential Flow based CFD methods are used. Recent development for geometry modelling/modification methods are also shown and found promising. In the following, an overview of the present method is given, and results are presented and discussed for the initial design of a waterjet propelled high-speed ship, namely the Delft Catamaran, where objective functions are minimized, in stochastic form and associated to real-ocean design conditions. (literal)
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