埃克特数(Ec)是连续介质力学中的无量纲,是流体动能和其焓之间的关系,也用来描述[耗散]],得名自Ernst R. G. Eckert。
其定义为
其中
英语百科
Eckert number 埃克特数
The Eckert number (Ec) is a dimensionless number used in continuum mechanics. It expresses the relationship between a flow's kinetic energy and the boundary layer enthalpy difference, and is used to characterize heat dissipation. It is named after Ernst R. G. Eckert.