Abstract
The three-dimensional RANS equations were applied to analyze the flow field of a submarine. To validate the code, the DARPA SUBOFF bare hull and an eliipsoid at angles of attack of <TEX>$10^{\circ}\;and\;30^{\circ}$</TEX> were simulated and good agreement with experiments was obtained. After the code validation, the flows over the full configuration of DARPA SUBOFF model having a fairwater and four stern appendages were simulated at four angles of attack <TEX>$(0^{\circ},\;10^{\circ},\;20^{\circ},\;30^{\circ})$</TEX> and three yaw angles <TEX>$(10^{\circ},\;20^{\circ},\;30^{\circ})$</TEX> Specifically, the pressure contours and streamlines of fairwater and stern appendage were compared as the angle of attack and yaw angle changed. The variations of hydrodynamic forces were also calculated.
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