• 舰船水下爆炸气泡脉动压力作用下将产生状运动冲击响应

    The whipping response of a warship subjected to an underwater explosion usually is agitated by the bubble impulse after the explosion shock.

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  • 一般而言气泡脉动通常附加破坏作用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.

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  • 数值计算实测值作了对比给山水中存在圆柱气泡脉动压力经验公式

    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.

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  • 采用龙格-库塔数值方法计算气泡脉动半径、周期水中压力计算结果实测数据吻合较好

    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.

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  • 应用数值模拟方法对水下爆炸产生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.

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  • 借助已有水下爆炸理论分析试验结果总结地基结构振动规律,指出二次振动现象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.

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  • 计算结果表明校核船体气泡脉动载荷作用下的总强度的同时必须计入波浪载荷影响,相关理论研究工程计算一定参考价值

    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.

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  • 通过实验研究,得到实验压力脉动曲线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.

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  • 通过气泡中的运动和受力分析,给出了用以封闭模型粘性应力脉动应力、相间动量交换表达式。

    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.

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  • 本文低压液压管路气泡和气产生压力脉动过程进行实验研究。

    The experiments of the pressure transients accompanying the growing and collapsing of gas bubbles and cavitation in low pressure hydraulic pipelines are carried out.

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  • 压力脉动发生液压泵油管路液压系统油管路低压管路中时,会引起气泡和气产生破灭。

    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.

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  • 气泡和气产生不仅严重影响液压泵液压系统性能而且会对压力脉动产生很大影响

    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.

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  • 气泡生成脉动能量气泡模型进行比较,结果再次论证本文分析方法的可靠性,本文研究工作为稠密气固两相流动的研究揭开了一崭新的篇章。

    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.

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  • 通过气泡中的运动和受力分析,给出了用以封闭模型粘性应力脉动应力、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...

    youdao

  • 通过气泡中的运动和受力分析,给出了用以封闭模型粘性应力脉动应力、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...

    youdao

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