This study demonstrates the versatility of a two-point, multilayer wall function in computing modeland full-scale ship flows with wall roughness and pressure gradient effects. The wall-function model is validated for smooth flat-plate flows at Reynolds numbers up to 10, and it is applied to the Athena R/V for resistance, propulsion, and seakeeping calculations and to fully appended DTMB 5415 fo...

The computational fluid dynamics method is used to analyze the attitude and resistance of a side-damaged frigate DTMB-5415 during steady flooding phase. volume capture interface between water air. shear stress transport k-ω model employed include turbulence effect. dynamic overlapping grid utilized deal with mesh update due ship motion in simulation. First, resistance, floating position wave pr...

The seakeeping performance of a damaged ship is highly correlated to the wave incident direction. Therefore, predicting motion responses under various incoming waves important. In this study, DTMB 5415 model investigated by focusing on its roll beam condition. an angle (?) 180° widely studied experimentally and numerically. But behaviours ? = 0° remain unknown. This study aims analyse rarely vo...

A coupled experimental and computational study is performed to discuss the overall trend in surface combatant 5512 forces moment flow pattern with change hull drift angle (β) from straight-ahead (β = 0°) static β 10°–20° conditions. The local measurements were using tomographic particle image velocimetry (TPIV), which involved uncertainties ranging <1% 17% decreased vortex progression. surge fo...

The Multi-Mission Surface Combatant (MMSC) is a highly maneuverable combatant ship capable of littoral and open ocean operations. It was designed to confront modern maritime economic security threats. MMSC takes the proven capabilities combat inherent flexibility Freedom-variant hull meet unique requirements international navies. Computational fluid dynamics (CFD) applied present method predict...