摘要：

在广泛搜集标准氢（25%仲氢）黏度实验数据的基础上，运用单纯形算法拟合了标准氢的黏度计算方程，方程计算值与实验数据的偏差一般在2.0%以内。方程的适用范围为温度100～500 K，压力不超过200 MPa的区域。方程的不确定度为2.0%。方程具有一定的外推性，可以用于标准氢三相点温度到100 K以及500～1000 K，压力不超过500 MPa的区域；100 K以下，除临界区和气相区，方程的不确定度为3.0%，500 K

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Abstract:

In this work, a new viscosity equation for the normal hydrogen (25% parahydrogen) has been fitted based on an extensive selection of experimental data using simplex method.The deviations between the values calculated by the equation and the experimental data are generally less than 2.0%The valid range of the equation is from 100 K to 500 K, with pressure up to 200 MPaThe uncertainty in viscosity of the equation is estimated to be 2.0%In addition, the extrapolation behavior of the equation is reasonable, and the equation could be used from the triple point temperature to 100 K or from 500 K to 1000 K, with pressure up to 500 MPa.The uncertainty is estimated to be 3.0% below 100 K except for the gas phase and critical region, and 5.0% above 500 K.

Key words: FONT-FAMILY: 宋体, mso-bidi-font-size: 11.0pt, mso-bidi-font-family: 宋体, mso-font-kerning: 1.0pt, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, mso-bidi-language: AR-SA, mso-ascii-font-family: Calibri">氢；黏度；关联