Print Email Facebook Twitter Hydrodynamics of wind-assisted ship propulsion verification and validation of RANS methodology Title Hydrodynamics of wind-assisted ship propulsion verification and validation of RANS methodology Author van der Kolk, N.J. (TU Delft Ship Hydromechanics and Structures) Keuning, J.A. (TU Delft Ship Hydromechanics and Structures) Huijsmans, R.H.M. (TU Delft Ship Hydromechanics and Structures) Contributor Huijsmans, R.H.M. (editor) Date 2016 Abstract Wind energy as an auxiliary form of propulsion for commercial ships has again become of great interest as a possible response to volatile fuel prices and increasingly stringent environmental regulations. A well-founded performance prediction tool is a key prerequisite for the further development of this promising technology, and with the support of the European Commission and others, a group of researchers at Delft University of Technology is developing a performance prediction program for these hybrid ships. Reynolds-Averaged Navier Stokes (RANS) packages will be one of the primary tools used during the study. The advent of the numerical towing tank brings possibilities but also new challenges. The predominance of large, separated flow structures in the wake of the sailing ship, and the particular interest in the transverse force component points to a conscientious grid verification and validation study. Here, it is sufficient to achieve parity for absolute uncertainty within the larger context of the project. The ‘drift sweep’ procedure is presented with validation levels alongside computational time to demonstrate the utility of this approach in support of the derivation of empirical formulations using systemic hull form variations. Finally, a moving mesh for the rudder may be implemented in an extended drift/rudder sweep. However for this case there is no validation data presently available. Subject Ship hydrodynamics resistancepropulsionpoweringseakeepingmanoeuvrabilityslammingsloshingimpactgreen water To reference this document use: http://resolver.tudelft.nl/uuid:5d85db09-3646-4f0c-ba14-86b585cc3d76 Source Proceedings of the12th International Conference on Hydrodynamics-ICHD 2016 Event ICHD 2016: 12th International Conference on Hydrodynamics, 2016-09-18 → 2016-09-23, Egmond aan Zee, Netherlands Part of collection Institutional Repository Document type conference paper Rights © 2016 N.J. van der Kolk, J.A. Keuning, R.H.M. Huijsmans Files PDF 148.pdf 355.79 KB Close viewer /islandora/object/uuid:5d85db09-3646-4f0c-ba14-86b585cc3d76/datastream/OBJ/view