Beginning with the prescribed wake model, a SemiEmpirical Correction for the vortex core effect on rotor wake is made and free wake calculation is carried out.
首先从预定的广义尾流入手，并引入尖涡涡核作用的半经验修正，对旋翼的自由尾流进行计算分析。
2
It is very easy to apply this optimization approach to various semi-empirical and ab initio molecular orbital calculation.
该法容易应用到各种半经验的和从头计算量子化学的方法中去。
3
The results of numerical calculation compared well with test data, as illustrated that this semi-empirical and semi-theoretical formula for predicting the bore pressure is feasible.