In this paper an analysis of the flow field around a surface combatant ship is carried out. The test case considered is the flow around a model of the US naval combatant DDG51; three different speeds of advance are analyzed, corresponding to Fr=0.28, 0.35 and 0.41, with Reynolds numbers equal to 1.200 107, 1.499 107 and 1.756 107 respectively, the scale of the model being Lambda=28.83. Numerical simulations have been carried out by means of the unsteady Reynolds-Averaged Navier-Stokes equations solver ?navis, developed at CNR-INSEAN. The computations are conducted on a sequence of grids in order to perform an accurate analysis of the grid convergence property of the solver. Validation of the results are provided by comparisons with experimental data.
Numerical and experimental analysis of the flow field around a surface combatant ship
Zaghi S;Broglia R;
2011
Abstract
In this paper an analysis of the flow field around a surface combatant ship is carried out. The test case considered is the flow around a model of the US naval combatant DDG51; three different speeds of advance are analyzed, corresponding to Fr=0.28, 0.35 and 0.41, with Reynolds numbers equal to 1.200 107, 1.499 107 and 1.756 107 respectively, the scale of the model being Lambda=28.83. Numerical simulations have been carried out by means of the unsteady Reynolds-Averaged Navier-Stokes equations solver ?navis, developed at CNR-INSEAN. The computations are conducted on a sequence of grids in order to perform an accurate analysis of the grid convergence property of the solver. Validation of the results are provided by comparisons with experimental data.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
