Numerical simulation of transom-stern waves

摘要

The flow field generated by a transom-stern hullform is a complex,broad-banded, three-dimensional phenomenon marked by a large breaking wave.This unsteady multiphase turbulent flow feature is difficult to studyexperimentally and simulate numerically. The results of a set of numericalsimulations, which use the Numerical Flow Analysis (NFA) code, of the flowaround the Model 5673 transom stern at speeds covering both wet- anddry-transom operating conditions are shown in the accompanying fluid dynamicsvideo. The numerical predictions for wet-transom and dry-transom conditions arepresented to demonstrate the current state of the art in the simulation of shipgenerated breaking waves. The interested reader is referred to Drazen et al.(2010) for a detailed and comprehensive comparison with experiments conductedat the Naval Surface Warfare Center Carderock Division (NSWCCD).