College Physics ›› 2020, Vol. 39 ›› Issue (02): 18-20.doi: 10.16854 / j.cnki.1000-0712.190192

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The energy loss of viscous flow in a horizontal circular pipe

ZHOU Yue1,ZHANG Guo-feng2   

  1. 1. College of Science,Beijing Forestry University,Beijing 100083,China; 2. School of Physics and Nuclear Energy Engineering,Beihang University,Beijing 100191,China
  • Received:2019-05-04 Revised:2019-08-05 Online:2020-02-20 Published:2020-03-05

Abstract:

The origin and distribution of the energy loss and heat in a laminar flow of viscous fluid through a

horizontal circular pipe are analyzed,and a misconception about the energy loss term in Bernoulli’s equation of vis

cous fluids was corrected.

Key words: 黏性流体, 内摩擦, 热量, 能量损耗