工作流体

可以采用任何形式的热循环和工作流体。

Any thermal cycle or working fluid could be considered .

提高工作流体压力有助于提高喷射器的喷射系数及升压性能。

Increasing the pressure of working fluid is helpful for the eject coefficient and lift-pressure capability .

作者提出了一种新的确定燃料电池喷射器的两个关键工作流体压力PPE和PPC的算法。

A new determination method of two key primary flow pressures in the fuel ejector is presented .

在发生拥塞现象之后，喷射系数与工作流体进口压力和混合气体出口压力的变化无关；

After the happening of choke , the value of entrainment ratio has no relation with primary fluid inlet pressure and mixed fluid outlet pressure .

结果表明，热交换器的对流换热系数和工作流体的温度变化对晶体生长的固液界面突出率和温度梯度具有相似的影响效果；

The results show that thermal convection coefficient of thermal exchanger and temperature change of cooling medium have similar effects on the convexity of solid-liquid interface and temperature gradient .

对多喷嘴引射混合式加热器的加热性能进行了试验研究，分析了工作流体压力和引射孔结构对引射混合式加热器的出口温度、引射系数以及加热效率的影响。

The influence of the working fluid pressure and the structure of ejecting nozzle on the outlet temperature , ejecting coefficient and heating efficiency of the ejecting-mixing heater were analyzed .

结果表明：在混合段发生拥塞现象之前，喷射系数随着工作流体进口压力的增加和出口压力的降低而增加，混合气体出口压力随着工作流体进口压力的增加和喷射系数的降低而增加；

It shows that : ① Before the happening of choke , the entrainment ratio increases with the increase of primary fluid inlet pressure and decrease of mixed fluid outlet pressure .

对比主喷嘴、扩压室扩散角、混合室直径及长度等参数对喷射器性能的影响，并通过改变工作流体的进口压力进一步验证所得结论。

The effects of diffusion angle of the main nozzle and the diffuser , diameter and length of the mixer on the ejector performance were compared , and then the high-side pressure .

给出了可调式引射器工作流体和引射流体入口、引射器出口的边界条件以及初始条件，并进行了相应的数值处理。

The boundary and initial condition , such as the inlet of the primary fluid and the secondary fluid , the outlet of the injector are given , and make the relevant numerical disposal .

此方法在现有撞击流技术的基础上，引入超临界流体作为撞击流技术应用的工作流体，对现有撞击流技术作了改进，使得该项技术可以应用于超高压领域。

Based on the theory of impinging streams technology , supercritical fluid was used as working fluid in this method , so the impinging streams technology can be used in the hyper high pressure field .

在矿业、水电力和海洋运输等行业中，当通过过流部件的工作流体中含有坚硬的固体颗粒时，固体颗粒对过流部件表面的冲击可使其产生严重的磨损破坏。

In mining hydraulic , electric power and Marine industries , while the flow component in hard solid particle flows , solid particles will impact the surface of the part and make its structure severe damage .

研究表明：影响喷射器流体力学性能的主要因素是喷嘴与喉管的面积比及工作流体与吸入气体的压力比。

The experiment result shows that the area ratio of the nozzle to the throat and the pressure ratio of the work liquid to the gas are the main factors affecting the hydrodynamic performance of the ejector .

这种喷嘴结构能有效改善由于工作流体压力降低而造成的设备操作性能恶化，提高蒸汽喷射泵运行的稳定性。

In addition , the above-mentioned nozzle structure is conducive to effectively preventing the deterioration of equipment performance caused by a reduction of operating fluid pressure , thus increasing the stability of the steam jet pump operation .

本文的研究工作涉及流体力学、气力输运、多相流理论、计算工程等学科。

The research work of the paper relates to some subjects like computational fluid dynamics , pneumatic conveying , multiphase flow and computational engineering .

钢琴学习对老年人的加工速度、工作记忆及流体智力的影响

Effect on Cognitive Processing Speed , Working Memory and Fluid Intelligence by Learning to Play the Piano in Senior Years

影响磨料射流切割套管效率的因素很多，着重研究了磨料射流的工作参数以及流体介质性质对切割套管效率的影响。

Experimental study on the effects of operating parameters and fluid performance on casing cutting efficiency is introduced in this paper .

针对微生物农药含有大量菌丝、菌核生物的特点，通过试验与测定，研究常规施药机具作业时产生的工作压力、流体速度、流道结构等参数变化对微生物农药活性的影响。

According to the characteristics of microbial pesticides that contain a lot of hyphae and fungus nucleoli , the effects of different spraying techniques on the efficacy of the microbial pesticides were tested .

基于排尿助力系统的结构及工作原理和流体力学理论建立了排尿助力系统的全程排尿期尿流率数学模型。

Based on the structure and working principle of urination assist system and the theory of hydrodynamics , the mathematical model of urine flow rate of urination assist system is established . 2 .

科里奥利质量流量计的工作原理是流体作用于测量管产生一微弱力，该力的大小可反映质量流量的变化。

The operational principle of Coriolis mass flow meter is that fluid generates acting force to the measuring tube , and the size of this acting force reflects the change of mass flow .

新型微管道机器人利用管内流体动能作为运动的动力源，同时当机器人停下来作检查或修理工作时，流体动能通过发电装置转换为电能，并对机载蓄电池充电。

The new micro piping robot uses the kinetic energy of fluid in pipe as power supply , and transforms it to electric power by electric power facility and charges the accumulator carried by robot when robot stops to inspect or repair pipe .

然后确定了加速应力为影响气缸寿命的工作应力：流体温度、使用压力及气缸动作频率；

Then the determined accelerate stress is the stresses that affect the cylinder life as fluid temperature , working pressure and moving frequency .

射流泵是以液体射流作为工作介质，通过流体质点或微团的紊动扩散作用，把能量传给被抽流体的一种流体机械及混合反应设备。

Jet pump is a kind of fluid machinery and mix reaction equipment with fluid jet as working medium , which transfers energy to suction fluid through turbulent diffusion of fluid particle .

另外，绳索系统经常工作在风、流体、微重力、电磁力等作用下，进一步加剧了其动力学的复杂性。

Furthermore , a cable system is often subjected to the external excitations such as wind , rain , fluid , micro-gravity and alternative electro-magnetic fields , which definitely enhance the complexity of the cable dynamics .

本文根据齿轮式气动马达的结构和工作原理，按照流体力学方法对齿轮气动马达的理论流量和泄漏流量以及效率分别进行了理论推导。

According to the structure and principles of the gear motor , and based on fluid dynamics theory , the theory flow rate and the leakage flow rate and the efficiency of a gear motor were derived .

根据齿轮式气动马达的结构和工作原理，按照流体力学方法推导了气动齿轮马达的径向泄漏耗气量和轴向泄漏耗气量，对一种锚杆钻机使用的气动齿轮马达进行了泄漏量计算。

According to the structure and principles of the gear motor , and based on fluid dynamics theory , the radial leakage and axial leakage flow rate of a gear motor were derived , and a calculation example was given for the gear motor used in the roof bolter .

研究还表明，微泵的性能与工作寿命和实验环境的洁净度以及工作流体提纯密切相关。

It also indicates that the cleanness degree of devices and the purification of the working fluid will greatly influence the performance and working lifetime of the EHD micropump .