汽化压力

在激光功率密度约100MW/cm~2下，由拍摄激光与靶相互作用产生射流发光的时间积分照片测得靶面的汽化压力约3.6MPa。

Under laser flux about 10MW / cm2 . the Mach-disk characteristic parameters were measured by a time-integrated photo of the free jet . then the vapor pressure on target in the atmosphere is calculated . It is about 3.6 MPa .

激光照射下铝靶表面汽化压力的测量

Measurement of the vaporization pressure on aluminum target irradiated by laser beam

高粘度、高汽化压力原油输送的汽蚀问题

Corrosion by gases in transportation of highly viscous and pressurized crude oil

孔隙水压力与水汽化压力耦合，使作用在滑面上有效应力减小。

The coupling of pore water pressure and steam pressure results in effective normal pressure reducing significantly under the sliding surface .

温度升高，水的汽化压力升高，流场内高低压降幅减小，压力变化趋于稳定。

As the temperature increases , high and low pressure drop of flow field decreases and the pressure change becomes stable .

水流的初生空化噪声频率不仅与汽化压力和流体的特性有关，而且还与流体的环境压力分布和速度分布有关，与空化类型关系更为密切。

The inception cavitation does n'f only related the liquid vapouration pressure and its character , but also the pressure grad and velocity distribution .

由于腔内产生了低于汽化压力的负压，引起低压区液体的汽化，加上射流不稳定剪切层的作用，最终形成大小周期性变化的轴对称空化气囊；

When the negative pressure of the self-excited pulse jet 's chamber is around vaporization pressure , the local cavity would happen with the effect of the unsteady shear layer .

边缘区域的压力在流场变化过程中始终高于水的汽化压力，汽含率很低，发生空化的几率很小。

Pressure on the marginal area of sample is always higher than vaporization pressure of water during fluid flows . So cavitation hardly ever occurs because of low vapor volume fraction .

针对水的汽化压力高、容易发生气穴的特点，应用气穴模型理论对阻尼小孔中以水作为工作介质时的流动特性进行理论分析。

Aiming at the high vaporous pressure and easy cavitation occurrence of water , the cavitation flow in orifices using water as working media is analysed theoretically by applying cavitation model .

实验结果表明：汽化压力不是产生液柱分离的充分条件；伴随着液柱分离还有众多的小空泡生成和溃灭。

The experimental results indicate that vapour pressure is not the sufficient condition under which column separation occurs , and that a number of small cavities grow and collapse when liquid column is separated .

采用临界压力代替汽化压力定义空化数，建立初始气核大小与液体抗拉强度的关系，力图消除液体抗拉强度对空化比尺效应的影响。

At the same time , critical pressure is applied to replace the cavitation number defined by vaporization pressure and the relationship between initial dimension of gas nucleus and tensile strength of liquid is established to endeavor for eliminating the effects of tensile strength of liquid on scale effect .

用户使用的设备一般包括储存罐、汽化器和压力控制管。

Customer installations generally include a tank , vaporizer , and pressure control manifold .

液体的汽化程度与压力的大小、温度高低有关。

Vaporization of the liquid level and pressure of the size of the high and low temperatures .

压力控制管控制着输入到过程的气体压力。使用液氮的过程不要求有汽化器和压力控制管。

A pressure control manifold controls the pressure at which the gas is fed to the process . Processes that use nitrogen as a liquid do not require the vaporizers and pressure control manifold .

汽化温度受局部压力的影响，并不是通常认为的100℃。

Vaporization temperature is affected by local press and is not 100 ° C we think usually ;

从实验得到了推算页岩油平衡汽化的温度-压力-汽化率的关系相图。

From the experimental results , the phase diagrams , which correlate the temperature , pressure and percentage of vaporization of equilibrium flash vaporization of shale oil , are constructed .