The simulation of the valve plate has been worked , and it can be used as the direction for the design of sccs and the unloader force . 3 对该系统中气阀阀片的运动规律进行了模拟，对可调回流气阀的机构和加载力设计起了指导作用。
Taking the method of pressing - off inlet valve in partial stroke as the theory foundation , a new stepless capacity control system is developed 本文以部分行程顶开吸气阀进行排气量调节为理论基础，研制开发了一种新型气量无级调节系统，其核心部件为可调回流气阀。
In addition , the variations of the viscous effect with different inlet temperature is studied , the changing law of thrust and thrust efficiency with temperature is analyzed 其次,变化来流气体温度,研究粘性效应的变化,分析推力、推力效率受温度影响的变化规律。
The influence arising from the anode voltage and gas pressure of gas - flow proportional counter and ambient temperature on the measuring error of the setup has been investigated by means of experiment 实际测得了流气正比计数管阳极高压、工作气压和环境温度对软x射线荧光测量装置测量误差的影响。
Based on force balance , a simplified nonlinear equation group with multiple physical parameters that affect the size of a cavity was developed and the cavity size vs cross - flow gas velocity relationship thus obtained agreed with experimental data 在流体力学分析和力平衡分析的基础上推导出简化的空腔尺寸关联式，得出一个有多参数的非线性方程组，获得空腔尺寸与错流气速的关系，与实验数据基本吻合。
In this work , according to the feature of soft x - ray fluorescence , a setup has been established for the measurement of soft x - ray fluorescence in laboratory , which is calibrated by 55fe . the setup is made of x - ray tube , fine tuning table , vacuum system , gas - flow proportional counter and multiple channel analysis 本文工作中依据软x射线荧光的特点，在实验室建立了一套软x射线荧光测量装置，该装置由x射线管、精密微调样品台、真空系统和流气正比计数管探测系统以及多道分析仪组成，并采用~ ( 55 ) fe标准光源对系统进行实际标定。
The article analyses the principle of such a system first . combined with the valve plate simulation and experiment result , the concrete machine structure and control system can be decided . in the article , the important part - valve fork is particularly analyzed ; at last , two concrete application in industrialization is referred 本文首先详细分析了此新型气量无级调节系统的工作原理，结合阀片工况模拟和实验室试验结果，确定了可调回流气阀的具体机构和气量调节控制系统，特别对其关键部件?压叉进行了失效分析和改造，并使用了塑料压爪，最后介绍了两个气量无级调节系统的工业化实例。
A th - 1025 thoron source made in pylon company of canada was adopted . thoron gas is mixed with circulation gas before they are input into the thoron accumulation box . the thoron level in the thoron accumulation box can be adjusted by changing the gas flow rate through the thoron source , or adding different volume of delay boxes in source input circuit , and me 简易(气土)室采用加拿大pylon公司生产的th - 1025型流气式固体(气土)源， (气土)进入积累箱之前先与循环气流混合，积累箱中的(气土)浓度可以通过改变流经(气土)源的气流流率或在充源回路加不同体积的延迟瓶加以调节。
There are great differences between ground test of a flight vehicle ' s aerodynamics and that of a dual - mode scramjet when ground test facilities are used to do experiments on a dual - mode scramjet engine , the components of incoming flow and its parameters , including total pressure , total temperature ( or total enthalpy ) and velocity must be simulated . at the same time , since the fuel ' s resident time within a combustor is very short , on the order of one millisecond , it is difficult to measure the flow - fields 进行双模态冲压发动机地面试验研究时，必须要求试验设备能模拟实际飞行条件下来流气体的组分、总压、总温(或总焓)以及来流气体的流动速度；同时由于燃料在燃烧室内驻留的时间很短，一般为毫秒量级，从而使流场物理量的测定显得非常困难。
( 3 ) a new method was developed to measure the sizes of bubbles in vertical pipeline . a rapid and simple filling algorithm was presented acorrding to bubble features . a new method was developed for bubble velocity by searching the united character ( 3 )本文基于数字图像处理技术，提出了一种用于快速测量垂直管道中气液两相流气泡尺寸的新方法，根据气泡特征提出了一种快速简单的气摘要泡填充算法;设计了一种通过搜索气泡的联合特征量来测量气液两相流中气泡速度的新方法，图像处理速度约为19帧/秒。
