摘要
为了研究舰船敷设抗冲瓦后的阻力性能,采用RNG湍流模型和有限体积法求解RANS方程对船模三维粘性绕流进行了数值模拟,兴波阻力计算则采用基于格林定理的时域边界元法.开展了敷设抗冲瓦前后的阻力性能拖曳水池对比试验.理论计算与试验结果表明:舰船敷设抗冲瓦后阻力在低速时基本保持不变,中高速时会由于兴波阻力的增加使得舰船的阻力有所增加,但不超过1%.计算与试验结果的比较验证了数值方法的有效性.
A new concept product——Anti-Shock Layer（ASL）——was developed to isolate the underwater non-contact explosion loads and ship radiated noise.Ship resistance was taken into account while a naval ship was coated with ASL.Numerical simulation of three-dimensional viscous flow fields over the ship model was processed by solving Reynolds-Averaged Navier-Stokes（RANS） equations with an RNG turbulence model and the finite volume method.A type of time domain boundary element method based on Green＇s theorem was used to compute the wave making resistance of the ship model.At the same time,a resistance contrast test between ship models coated with and without ASL was carried out at the towing tank.The numerical test results show that the ship resistance is almost the same at low speed and increases less than 1% at high speed as a result of wave making resistance when a ship is coated with ASL.The comparison between numerical and experimental data shows that the demonstrated numerical method is feasible and reliable.
出处
《哈尔滨工程大学学报》
EI
CAS
CSCD
北大核心
2010年第12期1559-1564,共6页
Journal of Harbin Engineering University
基金
国家自然科学基金资助项目(10672181)
关键词
抗冲瓦
船舶阻力
数值模拟
模型试验
anti-shock layer
ship resistance
numerical simulation
ship model test
