格鲁尼森数是已知诸热力参数中对流体的临界点最不敏感的参数之一,将这个通常描述固体热力学性质的格鲁尼森数应用于描述非理想流体的流动可以给出合理的结果。本文计算了氦在不同的温度和压力下的格鲁尼森数,给出了广宽流动区域内氦的格鲁尼森数的普遍关联式,与用标准热力参数值计算结果的最大误差小于5％。 The Grouhsson number is one of the most sensitive parameters of the known thermodynamic parameters to the critical point of the fluid. Applying this Grunellian number, which usually describes the thermodynamic properties of solids, to describing the flow of non-ideal fluids can give reasonable results . In this paper, the Gurren’s number of helium at different temperatures and pressures is calculated. The general formula for the correlation between the Gurren’s number of helium and the helium in a wide flow field is given. The maximum error of the calculation results with standard thermodynamic parameters is less than 5% .