量纲分析中的Π定理及其应用

The Π Theorem and Its Application to Dimensional Analysis

绍了量纲分析中的一个重要定理Π定理 ,并应用该定理半定量地分析了部分实际物理问题 。

An importment theorem of dimensional analysisΠ theorem is introduced.With it some actual physical questions are analysed in semi-quantification,and the functions of that Π theorem are explained in discovering new physical phenomenon and laws.