HYDRODYNAMICS OF OPERATION OF SELF-PROPELLED SUBMARINES IN WAVES
Abstract
AbstractThis project aims at 1) development and validation of high-fidelity computational tools forpredicting free-running submarine operation at or near the free surface in the presence of waves,and 2) implementation, validation and evaluation of turbulence boundary layer transition modelsin the context of free running, model-scale submarine propulsion and maneuvering. The notionalsubmarine Joubert BB2 geometry is selected as the platform for the research. The parametricoperational space (depth-speed-wave height) with regards to vessel depth and pitchcontrollability will be explored, studying the hydrodynamics and resulting forces induced by thefree surface. Calm water results will be validated against available experiments, while operationunder regular and irregular waves will be studied but not validated due to lack of experimentaldata. To evaluate the additional uncertainty caused by ignoring the transition to turbulentboundary layer, several boundary layer transition models will be evaluated for model-scalepropeller and maneuvering submarine flows, after implementation of appropriate modificationsto the models to operate with moving grids. Validation will be performed for propeller DTMBP5168 in open water operation. Finally, the new version of the INSEAN E1619 notionalsubmarine propeller, including open water performance, wake flow field and operation appendedto the submarine DARPA Suboff at depth and near the surface will be studied, in the context ofan ongoing collaboration with INSEAN in Italy.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Mar 03, 2017
- Source ID
- N000141712293
Entities
People
- Pablo M. Carrica
Organizations
- Office of Naval Research
- United States Navy
- University of Iowa