CAJ | 학술논문

超空泡技术在水下武器的成功应用，使水下武器的速度和射程大幅度提高；对水下枪弹自然超空泡的数值模拟，是研究水下枪弹自然超空泡的有效手段，可以节约大量的试验费用，缩短研制周期，研制出理想的水下枪弹弹头外形，以提高其在弹着点处的存速存能及有效射程；还可以对现有的水下枪弹进一步进行优化；通过对尖头、钝头和平头3种外形水下枪弹的自然超空泡数值模拟，发现钝头外形的水下枪弹更有利于形成稳定的自然超空泡，且减阻效果更好。
초공포기술재수하무기적성공응용，사수하무기적속도화사정대폭도제고；대수하창탄자연초공포적수치모의，시연구수하창탄자연초공포적유효수단，가이절약대량적시험비용，축단연제주기，연제출이상적수하창탄탄두외형，이제고기재탄착점처적존속존능급유효사정；환가이대현유적수하창탄진일보진행우화；통과대첨두、둔두화평두3충외형수하창탄적자연초공포수치모의，발현둔두외형적수하창탄경유리우형성은정적자연초공포，차감조효과경호。
Supercavitation technology’s successful application of underwater weapons greatly improved the speed and effective range of underwater weapons. Numerical simulation on natural supercavitation of un-derwater bullets is an effective mean to research the underwater bullets supercavitation,which can save a lot of testing costs,shorten the development cycle and develop the ideal underwater bullet head shape in order to improve its deposit rate at the point of impact of the kinetic energy,speed and the effective range. The existing underwater bullets can also be optimized. Through numerical simulation on the natural super-cavition of head projectile,blunt head projectile and flat head projectile,we discoved that blunt head pro-jectile is more conducive to the formation of stable natural supercavitation and has better drag reduction.