Nusselt number
/ˈnʊsəlt/noun
1- Physics a dimensionless parameter used in calculations of heat transfer between a moving fluid and a solid body【物理】努塞特数。
1.1
- It is equal to hD/k, where h is the rate of heat loss per unit area per degree difference in temperature between the body and its surroundings, D is a characteristic length of the body, and k is the thermal conductivity of the fluid.努塞特数等于hD/k, 其中h代表物体与环境温差每度每单位面积的热耗率, D代表物体的特征长度, k代表流体的热导率。
词源
mid 20th cent.: named after Ernst K. W. Nusselt （1882-1957）， German engineer.