1) ratio,expansion
膨胀比率
2) expansion efficiency
膨胀系数，膨胀率，膨胀比
3) specific volume expansion rate
比容膨胀率
1.
The specific volume expansion rate introduced in modified PL model can reflect the volume expansion caused by the change of temperature,but not reflect the effect of the mass fraction of foam,because the change of the foam structure caused by the increase of foam mass fraction can not be considered in the specific volume expansion rate when the mass fraction of foam is higher than 70%.
改良幂律模型中引入的比容膨胀率能包含温度造成的体积膨胀影响,但不能包含泡沫质量的影响,因为当泡沫质量高于70%时,泡沫质量增加带来的泡沫结构的变化没有考虑在比容膨胀率中。
4) nozzle expansion ratio
喷管膨胀比;喷嘴面积膨胀率
5) expansion ratio
膨胀比
1.
The temperature distributions in the heating plate as well as the flow fields inside the precessing jet nozzle were acquired and analyzed under different inlet Re number and expansion ratio.
本文使用大涡模拟模型对自激励旋进射流的内部流场和冲击平板换热的温度场进行数值模拟,得到了不同进口Re数和不同膨胀比情况下的旋进射流的内部流场和冲击平板的温度场,并在此基础上分析了不同进口Re数和不同膨胀比对换热Nu数的影响。
2.
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。
3.
The experiment results show that the cooling performance of the vortex tube keeps unchanged under a fixed lower expansion ratio,with the increase of the expansion ratio,the effect of the inlet pressure on the cooling performance of the vortex tube is becoming remarkable.
采用自行设计的涡流管,并以空气作为工作介质,通过实验研究了在保持膨胀比不变的情况下,不同进口压力对涡流管性能的影响。
补充资料：膨胀比
分子式：
CAS号：
性质：流化床的膨胀比R=某流速下密相流化床高度Lf/最小流化速度时床高Lmf。与Lf和Lmf相对应的床层空隙率εf和εmf，床层密度ρf和ρmf之间存在以下关系：下标m表示固定床。所以，只要知道了任一组相应的L、ε或ρ，床膨胀比就可算出来。
CAS号：
性质：流化床的膨胀比R=某流速下密相流化床高度Lf/最小流化速度时床高Lmf。与Lf和Lmf相对应的床层空隙率εf和εmf，床层密度ρf和ρmf之间存在以下关系：下标m表示固定床。所以，只要知道了任一组相应的L、ε或ρ，床膨胀比就可算出来。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条