船舶力学
船舶力學
선박역학
JOURNAL OF SHIP MECHANICS
2014年
4期
370-376
,共7页
于开平%张广%邹望%李振旺
于開平%張廣%鄒望%李振旺
우개평%장엄%추망%리진왕
流体力学%超空泡航行体%动力学行为%CFD
流體力學%超空泡航行體%動力學行為%CFD
류체역학%초공포항행체%동역학행위%CFD
hydromechanics%supercavitating vehicle%dynamic behavior%CFD
超空泡航行体稳定性及弹道特性的仿真研究是设计超空泡航行体控制和制导系统的基础。文章基于多相流URANS(Unsteady Reynolds Averaged Navier-Stokes)方程和刚体纵向平面运动学方程,建立了三维超空泡航行体动力学仿真模型,对纵向平面内超空泡航行体巡航状态的动力学行为进行了仿真研究。仿真结果表明,超空泡航行体在无控条件下仍具有一定的稳定性;尾部控制面可以有效缩短航行体达到稳定所需要的时间,并且能使航行体稳定于空泡中心构成理想的稳定模式。
超空泡航行體穩定性及彈道特性的倣真研究是設計超空泡航行體控製和製導繫統的基礎。文章基于多相流URANS(Unsteady Reynolds Averaged Navier-Stokes)方程和剛體縱嚮平麵運動學方程,建立瞭三維超空泡航行體動力學倣真模型,對縱嚮平麵內超空泡航行體巡航狀態的動力學行為進行瞭倣真研究。倣真結果錶明,超空泡航行體在無控條件下仍具有一定的穩定性;尾部控製麵可以有效縮短航行體達到穩定所需要的時間,併且能使航行體穩定于空泡中心構成理想的穩定模式。
초공포항행체은정성급탄도특성적방진연구시설계초공포항행체공제화제도계통적기출。문장기우다상류URANS(Unsteady Reynolds Averaged Navier-Stokes)방정화강체종향평면운동학방정,건립료삼유초공포항행체동역학방진모형,대종향평면내초공포항행체순항상태적동역학행위진행료방진연구。방진결과표명,초공포항행체재무공조건하잉구유일정적은정성;미부공제면가이유효축단항행체체도은정소수요적시간,병차능사항행체은정우공포중심구성이상적은정모식。
Numerical simulation research on the stability of supercavitating vehicle and trajectory is the basis of designing control and guidance system of supercavitating vehicle. In this paper, based on the mul-tiphase flow URANS (Unsteady Reynolds Averaged Navier-Stokes) equations and the kinematical equation of the rigid body in the longitudinal plane, the three-dimensional dynamics simulation model of supercavi-tating vehicle is established. On this basis, the dynamic behavior of supercavitating vehicle is simulated in the cruising state. The results show that the supercavitating vehicle without control may still be stable to some extent, and fins can effectively decrease the time which the vehicles take to be stable and make the vehicle locate in supercavity as a stable motion mode.