Radioisotopic tracer technology measuring water entry profile has been used in oil fields for a long time.
放射性同位素示踪法测吸水剖面工艺在油田已应用很久了。
As underwater depth increases, metacenter height increases, but water entry Angle decreases, so the platforms allowable swing angles also decrease.
随着吃水深度的增加，平台的稳心高变大，但平台入水角减小，所以平台的容许摆动幅度降低。
Experiments and analysis results show that lowering and raising stability mainly rests with the platform underwater depth, structural characteristics, water entry Angle, etc.
实验和分析结果表明，平台在下沉和上浮过程中的稳定性主要与吃水深度、平台的结构参数以及入水角等因素有关。
This paper introduced the method of measuring water-entry flow field using PIV technique. Some test results are provided.
本文简单介绍了PIV测量物体入水初期流场的方法并给出了试验结果。
The initial cavity, ballistic trajectory and velocity attenuation of the sphere pellets are similar at different water-entry angles and initial velocities.
在一定的入水角与速度范围内，球形弹丸入水初期弹道的空泡特性、弹道轨迹以及速度衰减规律具有一定的相似性。
Based on the unsteady potential flow theory of incompressible liquid, a model of water-entry impact force for air-launched mine was presented, and the water-entry impact force was calculated.
基于不可压缩流体的非定常势流理论建立了空投水雷入水冲击力计算的数学模型，对水雷的入水冲击力进行了计算。
Based on the unsteady potential flow theory of incompressible liquid, a model of water-entry impact force for air-launched mine was presented, and the water-entry impact force was calculated.
基于不可压缩流体的非定常势流理论建立了空投水雷入水冲击力计算的数学模型，对水雷的入水冲击力进行了计算。
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