Supercritical Correlation Length of Carbon Dioxide Along the Critical Isochore
Supercritical Correlation Length of Carbon Dioxide Along the Critical Isochore
复制标题
二氧化碳沿临界等容线的超临界相关长度
DOI：
10.1103/physrevlett.27.495
复制
发表时间：
1971
影响因子：
8.6
通讯作者：
J. White
中科院分区：
文献类型：
--
作者：
B. Maccabee;J. White
通过将热扩散系数测量值的临界部分等同于扩散系数的川崎表达式，在流体动力区计算了总关联长度的值。这些新的关联长度的值在0.10℃的范围内与由(A)角各向异性数据和(B)静态可压缩性数据计算的值非常接近，后者按Ornstein-Zernike理论解释，其直接关联长度R0=4.2C。
Values of the total correlation length have been calculated in the hydrodynamical region by equating the critical part of measured values of the thermal diffusivity to the Kawasaki expression for the diffusivity. These new values of the correlation length are found to agree rather closely in the range 0.1<~ Δ T<~ 10 C with values calculated from (a) angular anisotropy data and (b) static compressibility data, the latter interpreted according to Ornstein-Zernike theory, with a constant direct correlation length R 0= 4.2 Å.