K., Coole, T., 2013, "Explicit Friction Factor Accuracy and Computational Efficiency for Turbulent Flow in Pipes," Flow, turbulence and combustion, 1-27. https://doi.org/10.1007/s10494-012-9419-7WINNING, H.K., COOLE, T., "Explicit friction factor accuracy and computational efficiency for...
Darcy Friction Factor Formulae in TurbulentPipe FlowJukka KiijärviLunowa ∗ Fluid Mechanics Paper 110727July 29, 2011AbstractThe Darcy friction factor in turbulent pipe flow must be solvedfrom the Colebrook equation by iteration. Because of the iterationnew equations to solve this friction factor...
Friction Factors for Turbulent Flow in Curved Pipes 来自 ResearchGate 喜欢 0 阅读量: 242 作者: H Ito 摘要: The object of this paper is to furnish the engineer with reliable data on the friction factors to be used in computing the pressure losses for turbulent flow in smooth curved pipes...
1984; Desouky, and El-Emam, 1990; El-Emam et al., 2003). Dodge and Metzner (1959) developed the most widely used implicit Fanning friction factor equation for turbulent flow of non-Newtonian fluids in smooth pipes. This equation for power-law fluid and smooth pipe can be written as1f=4n...
1. Definition of friction factor. The friction factor is representingthe loss of pressure of a fluid in a pipe due to the interactions in between the fluid and the pipe. What is Fanning friction factor for laminar flow in pipe? Most charts or tables indicate the type of friction factor, ...
An equation has been used which correlates the friction factor of the rough surface which has been developed which combines the effects of the rough and smooth surface on the flow to obtain a friction factor vs. Reynolds Number plot for the entire pipe-type cable system. This theory has been...
In open channel flow, it is common practice to use the Darcy friction factor f which is related to the skin friction coefficient by f = 4Cd. It yields: τo=f8ρV2 2. The shear velocity is a measure of shear stress and velocity gradient near the boundary. It may be rewritten as: V...
J. 2007. New assessment of friction factor correlations for power law fluids in turbulent pipe flow: A statistical approach. Journal of Central South University of Technology, 14, 77-81.GaoPeng, and Jin-jun Zhang, New assessment of friction factor correlations for power law fluids in turbulent...
The friction factor or Moody chart is the plot of the relative roughness (e/D) of a pipe against theReynold's number. The blue lines plot the friction factor for flow in the wholly turbulent region of the chart, while the straight black line plots the friction factor for flow in the wh...
The performance of the proposed model was compared with respect to the conventional procedures using some statistic parameters for error estimation. The comparison test results reveal that through fuzzy rules and membership functions, the friction factor can be identified, precisely. 展开 ...