Experimental Determination of the Discharge Coefficients for Critical Flow through an Axisymmetric Nozzle
Experimental Determination of the Discharge Coefficients for Critical Flow through an Axisymmetric Nozzle
复制标题
轴对称喷嘴临界流量流量系数的实验测定
作者：
S. P. Tang;J. Fenn
临界流量喷嘴的流量系数是通过实验确定的，氢气、氦气、氮气和氩气的雷诺数范围为 10 到 10。高于约 200 的值，测量的系数与直接应用边界层理论预测的系数非常一致。结果表明，在许多情况下，可以避免计量喷嘴的实验校准。
Discharge coefficients for critical flow nozzles were determined experimentally for hydrogen, helsum, nitrogen, and argon over a Reynolds number range from 10 to 10. Above values of about 200, the measured coefficients are in excellent agreement with those predicted by a straightforward application of boundary-layer theory. The results suggest that in many cases experimental calibration of metering nozzles might be avoided.