1) low density wind tunnel
低密度风洞
1.
The experiment was conducted in hypersonic low density wind tunnel,a type of high sensitivity external microbalance had been designed,both problems of temperature proof and high accuracy calibration were solved,Aerodynamic data of sphere-bicone configuration had been measured under simulating altitude 65km～75km and hypersonic flow conditions.
风洞试验在高超声速低密度风洞中进行,设计了高灵敏度的外式微量天平,解决了温度防护和高精度校准的问题,得到了球双锥外形在高度65km~75km、高超声速流动的气动力数据。
2) density channel
密度风洞
3) high-density wind tunnel
高密度风洞
4) variable-density wind tunnel
变密度风洞
5) low turbulence wind tunnel
低湍流度风洞
1.
This paper reports the measurement of transition location change of NLF(2)-0415 swept wing in a low-speed flow along with the attack angle based on sublimation method in a low turbulence wind tunnel mounted at Northwestern Polytechnical University.
报导了在西北工业大学低湍流度风洞中采用升华法测量后掠翼上表面流动转捩位置及其随攻角变化而改变情况,并参照后掠翼压力分布的实验结果进行分析。
6) cryogenic wind tunnel
低温风洞
1.
In order to study the cryogenic wind tunnel,in which highReynolds number tests can be conducted,a 0.
为研究低温风洞的设计运行技术,CARDC(气动中心)建成了0。
2.
Existing cryogenic wind tunnels with cooling accomplished by spraying liquid nitrogendirectly into the tunnel circuit must equally discharge cryogenic gaseous nitrogen for keeping thesteadiness of the test flow.
描述了用于低温风洞的新颖制冷系统，利用热交换器回收排气冷量预冷压缩空气，然后再用热分离器将其降至深低温作风洞气源。
补充资料：线型低密度聚乙烯/低密度聚乙烯共混物
分子式：
CAS号：
性质：系由线性低密度聚乙烯与低密度聚乙烯组成的共混物，20％的低密度聚乙烯可显著改善线性低密度的加工性能，提高薄膜韧性和透光性，当低密度聚乙烯达50％时，可提高薄膜撕裂强度和断裂伸长率。可通过粒料直接掺混制备。主要用于吹塑农膜、包装膜及挤出包覆电缆。
CAS号：
性质：系由线性低密度聚乙烯与低密度聚乙烯组成的共混物，20％的低密度聚乙烯可显著改善线性低密度的加工性能，提高薄膜韧性和透光性，当低密度聚乙烯达50％时，可提高薄膜撕裂强度和断裂伸长率。可通过粒料直接掺混制备。主要用于吹塑农膜、包装膜及挤出包覆电缆。
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