1) critical compression ratio
临界压缩比
1.
From the ample computational results,the relationships among maximum entrainment ratio,expansion ratio and critical compression ratio were concluded.
在以往大量数值模拟工作的基础上,总结出了一定喷射器结构时,喷射器的最大喷射系数、膨胀比及临界压缩比三者之间的关系,并给出了膨胀比与喷嘴出口马赫数之间的幂指数关系。
2.
Two compound parameters, expansion ration and critical compression ratio, are introduced to conc.
并给出喷嘴出口马赫数与喷射器膨胀比和临界压缩比的关系式。
2) CCR
压缩机的临界压缩比
3) critical pressure ratio
临界压比
1.
Sonic point position and critical pressure ratio in non-uniform microchannels*;
变截面微管道内声速点位置及临界压比
2.
This paper gives a mathematics model based on the definition of the critical pressure ratio of the steam turbine stage, the characteristics of the water and the steam and the detail calculation of a single stage.
从级临界压比的定义出发,依据水和水蒸汽性质,在单级详细计算的基础上给出汽轮机单级临界压比的求算方法,该算法易在计算机上实现。
4) critical compression
临界压缩量
5) critical pressure ratio
临界压力比
1.
The formula of the critical pressure ratio for safety valve is proposed.
在安全阀临界压力比分析研究的基础上 ,提出了一种确定安全阀临界压力比的计算公式 安全阀临界压力比主要受喷管临界压力比和阀瓣流阻系数的影响 ,由喷管临界压力比可确定安全阀临界压力比 由于阀瓣流阻系数过大 ,安全阀一般处于亚临界流动状
2.
The necessity of using sonic conductance C and critical pressure ratio b to describe the flow rate characteristics of pneumatic components was discussed firstly,then the principles and the test device of ISO/DIS6358 standard were introduced and its advantages and disadvantages were analyzed.
论述了利用声速流导C与临界压力比b描述气动元件的流量特性的必要性,介绍了ISO/DIS6358标准的原理及试验装置,分析了其优缺点,参考等温容器放气法替代ISO标准测试方法,介绍了等温容器放气法的试验装置和方法及测试原理。
3.
According to ISO6358 which is concerned with the definition of two parameters, that is sonic conductance C and critical pressure ratio b for flow characteristics of pneumatic components, calculating methods of C & b for air tube are derived from theoretical analysis.
根据ISO6358关于流量特性参数声速流导C值和临界压力比b值的定义,结合相关气动理论,给出了气管道流量特性参数的计算方法,并编制了相应的计算机程序进行了仿真。
6) critical pressure ratio
压比临界点
1.
In the study of flow oscillation and discrete frequency noise of impinging jet, it is found that there is a critical pressure ratio for a given nozzle and a nozzle-to-plate distance.
发现对于给定的喷嘴和冲击距离 ,存在一个压比临界点 ,当压比高于此临界点值时 ,流场振荡和离散频率噪声被显著抑制乃至消失。
补充资料：临界压缩因子
分子式：
CAS号：
性质：将以临界参量Tc,pc，Vm,c及对比变量Tr，pr，Vr，所表示的温度T=Tr·Tc，压力p=pr·pc和摩尔体积Vm=Vr·Vm，c代入压缩因子Z的定义式时，有Z=pVm/RT=prpcVrVm,c/RTrTc =(pcVm,c/RTc)(prVr/Tr) =Zc(prVr/Tr)上式中的Zc=pcVm，c/RTc，称为临界压缩因子。由于存在着R=(8/3)(pcVm，c/Tc)的普遍关系，所以对于不同种实际气体来说，Zc均为3/8，是一个常数。
CAS号：
性质：将以临界参量Tc,pc，Vm,c及对比变量Tr，pr，Vr，所表示的温度T=Tr·Tc，压力p=pr·pc和摩尔体积Vm=Vr·Vm，c代入压缩因子Z的定义式时，有Z=pVm/RT=prpcVrVm,c/RTrTc =(pcVm,c/RTc)(prVr/Tr) =Zc(prVr/Tr)上式中的Zc=pcVm，c/RTc，称为临界压缩因子。由于存在着R=(8/3)(pcVm，c/Tc)的普遍关系，所以对于不同种实际气体来说，Zc均为3/8，是一个常数。
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参考词条