pipe friction meaning in Chinese

管壁摩擦
管摩擦

The results show that the heat transfer in intake manifold and cylinder has obvious effects on the volume efficiency , while the pipe friction coefficients and bent pressure loss coefficients have less effect
结果表明，进气管和气缸的传热对充气效率的影响较显著，而管道摩擦系数和弯管压力损失系数对充气效率的影响较小。
In order to improve the prediction accuracy , the sensitivities of pipe friction coefficients , pressure loss coefficients in bents , wall temperatures and heat transfer coefficients in pipes and cylinders on the volume efficiency are investigated
为提高充气效率的计算精度，由模拟计算和相关试验，分析了管道的摩擦系数、弯管的压力损失系数、进气管壁和气缸壁温度及其传热系数对充气效率的影响程度。
Influencing factors of buried pipeline ’ s damage and numerical modeling are investigated . complex site conditions , fault and fluid - pipe coupling are considered . considering soil - pipe interaction , boolean operator is used to merge site and pipe , and site - pipe physics contact is solved through soil - pipe friction
考虑到场地和管道间的相互作用,在adina三维有限元建模过程中,应用布尔操作实现场地与管道间的几何融合,并通过管土摩擦解决场地与管道间的物理接触问题。