RANS법을 이용한 DARPA Suboff 잠수함의 저항 및 자항 해석

This paper shows numerical results of the resistance performance of the DARPA Suboff submarine model and the open water performance of the E1619 propeller obtained by using Reynolds averaged Navier-Stokes method. A grid dependency study was carried out for the both simulations with varying turbulence models: Realizable k-ε model, SST k-ω model and Reynolds Stress model. Resistances of the submarine model and the propeller characteristics of the E1619 as well as their local flows were compared with available experimental data. The present numerical results from Reynolds stress model on fine grids of y+≈1 were well matched with those of model test and other numerical study. The wake velocities behind the submarine and the propeller were compared with LDV measurement data showing good agreement. Finally, self-propulsion of the DARPA Suboff submarine equipped with the E1619 was simulated. The analysed several self-propulsion factors were compared with other numerical results.