CAJ | 학술논문

优良的隐身性能使得潜艇具有强大的突防能力，因此，控制潜艇尾流信号特征对于提高潜艇隐身性能意义重大，这些信号特征主要包括尾部湍流强度、湍动能、湍流耗散率等。同时，优良的艇型对于抑制尾流信号特征、提高潜艇快速性和隐身性也具有重要意义。基于此，采用RANS方法计算SUBOFF潜艇主艇体艇型及6种改良艇型的艇体粘性绕流，将CFD方法用于分析艇体半径、艇艏长度、艇艉长度等参数对潜艇尾流信号特征的影响。计算结果显示：在SUBOFF潜艇主艇体艇型及其6种改良艇型的尾流场中，增加艇体半径有利于抑制远尾流场湍流信号特征，在近场则不利；增加艇艏长度能降低近尾流场湍流信号特征，在远场影响较小；增加艇艉长度在近、远尾流场均有利于降低其信号特征。
우량적은신성능사득잠정구유강대적돌방능력，인차，공제잠정미류신호특정대우제고잠정은신성능의의중대，저사신호특정주요포괄미부단류강도、단동능、단류모산솔등。동시，우량적정형대우억제미류신호특정、제고잠정쾌속성화은신성야구유중요의의。기우차，채용RANS방법계산SUBOFF잠정주정체정형급6충개량정형적정체점성요류，장CFD방법용우분석정체반경、정수장도、정미장도등삼수대잠정미류신호특정적영향。계산결과현시：재SUBOFF잠정주정체정형급기6충개량정형적미류장중，증가정체반경유리우억제원미류장단류신호특정，재근장칙불리；증가정수장도능강저근미류장단류신호특정，재원장영향교소；증가정미장도재근、원미류장균유리우강저기신호특정。
Superior stealthiness makes submarines have strong penetration capability,so it is significant to control wake singatures for improving the stealthiness of submarines. Submarine wake singatures include the turbulence intensity, turbulent kinetic energy, and turbulence dissipation rate. Meanwhile,a satisfacto-ry hull form can also restrain the wake singatures of submarines and can greatly improve its speed ability and stealthiness capability. In this paper,the viscous flow fields around SUBOFF and six improved subma-rine hull forms are calculated by using CFD technic RANS methods, based on which the effects of hull radi-us, bow hull length, and stern hull length on the submarine wake signatures are analyzed. The results show that in the wake of the original SUBOFF hull form and that of the modified hull forms, the increasing hull radius reduces the turbulence singatures far field astern, but augments the turbulence singatures close to the hull stern; meanwhile, the increasing bow hull length reduces the wake turbulence singatures close to the hull stern, but has little effect on the turbulence singatures far field astern; plus,the increasing stern hull length can alleviate the wake turbulence singatures significantly.