舰船在水下爆炸气泡脉动压力作用下将产生鞭状运动冲击响应。
The whipping response of a warship subjected to an underwater explosion usually is agitated by the bubble impulse after the explosion shock.
一般而言,气泡脉动通常起附加破坏作用,而冲击波起决定性作用。
Generally speaking, bubble pulse is usually an additional damaging effect, while shock wave plays a decisive role.
数值计算值与实测值作了对比,并给山水中存在圆柱亮时气泡脉动压力的经验公式。
The numerical computation is compared with the experimental data, and the experimental pressure formula of pulsing bubble when a cylinder is suspended into water is proposed.
采用龙格-库塔数值方法计算了气泡脉动半径、周期及水中压力,计算结果与实测数据吻合较好。
The radius period of oscillation of the bubble and the water pressures are calculated numerically with Runge-Kutta method. The calculating results are unanimous with that of experiments.
应用数值模拟方法对水下爆炸产生的诸如气泡脉动规律、脉动周期、水中冲击波压力的变化等特性进行了研究。
The characteristics of underwater explosions such as pulsation law and pulsation cycle of bubbles, and pressure time histories of shock waves in water were investigated numerically.
借助已有的水下爆炸理论,分析试验结果,总结了地基及结构振动的规律,指出二次振动现象与水中爆炸产生的气泡脉动有关。
According to the existing theories on underwater explosion and based on the analysis of experimental results, the laws of foundation and structure vibrations are summarized.
计算结果表明:校核船体在气泡脉动载荷作用下的总纵强度的同时必须计入波浪载荷的影响,对相关理论研究和工程计算有一定参考价值。
Results indicate that the wave loads must be considered when the hull's longitudinal intensity is checked. The research has value to correlative theory research and engineering calculation.
通过实验研究,得到了实验压力脉动曲线和实验气泡、气穴现象摄像数据。
The experimental pressure pulsation curve and video data of gas bubbles and cavitation phenomenon are obtained by the experiment.
通过对气泡在流场中的运动和受力分析,给出了用以封闭模型的粘性应力、脉动应力、相间动量交换项的表达式。
Analysis of bubble motion in the flow field was used to develop relations for the viscous stresses, turbulent stresses, and interfacial momentum exchange to close the model.
本文对低压液压管路有气泡和气穴产生的瞬态压力脉动过程进行了实验研究。
The experiments of the pressure transients accompanying the growing and collapsing of gas bubbles and cavitation in low pressure hydraulic pipelines are carried out.
当压力脉动发生在液压泵的吸油管路或液压系统的回油管路等低压管路中时,会引起气泡和气穴的产生及破灭。
When the pressure transients occur in low pressure pipelines such as the suction lines of pumps or the return lines of a hydraulic system, gas bubbles and cavitation will occur inside the fluid.
气泡和气穴的产生不仅会严重影响液压泵和液压系统的性能,而且会对压力脉动产生很大的影响。
The presence of cavitation and gas bubbles not only badly influences the performance of hydraulic pumps and systems but also affects the pressure transient behaviour in hydraulic pipelines.
将气泡生成脉动能量与气泡模型进行比较,结果再次论证本文分析方法的可靠性,本文的研究工作为稠密气固两相流动的研究揭开了一个崭新的篇章。
At last, the energy of the bubble formation frequency band was compared with the bubble model which shows the reliability of the analysis methods mentioned above.
通过对气泡在流场中的运动和受力分析,给出了用以封闭模型的粘性应力、脉动应力、相间动量交换项的表达式。
Analysis of bubble motion in the flow field was used to develop relations for the viscous stresses, turbulent stresses, and interfacial momentum exchange to close...
通过对气泡在流场中的运动和受力分析,给出了用以封闭模型的粘性应力、脉动应力、相间动量交换项的表达式。
Analysis of bubble motion in the flow field was used to develop relations for the viscous stresses, turbulent stresses, and interfacial momentum exchange to close...
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