Discussion of "Hydraulic Friction Factors for Pipe Flow" Ab initio valence bond calculations have been performed for the ground and excited states of H2S, H2S+, H2S-, SH, SH+, SH-. The dependence of calculated pr... B Mcenroe - Journal of Irrigation and Drainage Engineering-asce 被引量:...
Dlugogorski B Z,Schaefer T H,Kennedy E M.Friction factors for pipe flow of xanthan-based concentrates of fire-fighting foams. 8th International Symposium on Fire Safety Science . 2005Dlugogorski B.Z., Schaefer T.H. and E.M. Kennedy (2005), "Friction factors for pipe flow of xanthan-...
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...
L.F. Moody Friction factors for pipe flow Trans ASME, 66 (8) (1944), pp. 671-684 CrossrefView in ScopusGoogle Scholar Motozawa et al., 2012 M. Motozawa, S. Ishitsuka, K. Iwamoto, H. Ando, T. Senda, Y. Kawaguchi Experimental investigation on turbulent structure of drag reducing chan...
A novel method for the calculation of friction factors through the computation of the irreversibility and rate of entropy production in two-phase flows has been developed. The model uses the momentum equation of the twophase fluid as well as appropriate closure equations to compute energy dissipation...
The frictional force between two bodies depends mainly on three factors:(I) the adhesion between body surfaces (ii) roughness of the surface (iii) deformation of bodies. What is the value of friction factor? f stands for the Darcy friction factor. Its value depends on the flow's Reynolds ...
Estimating when a particular turbulent flow becomes computable depends on the details of the flow and of the code, as well as on economic factors, but some approximate rules can be derived from past experience. Consider the compilations in Fig. 2. Simulations can be classified as ‘heroic’, ...
Therefore, the Dodge-Metzner correlation is recommended for predicting the friction factors for the turbulent pipe flow of power law fluids.doi:10.1007/s11771-007-0219-5Peng GaoJin-jun ZhangCentral South University of TechnologyJournal of Central South University of Technology...
ZHANG J H; YAN C Q; GAO P Z.Character- istics of pressure drop and correlation of friction factors for single-phase flow in rolling horizontal pipe... JH Zhang,CQ Yan,PZ Gao - 《水动力学研究与进展B辑》 被引量: 68发表: 2009年 Ammonia two-phase flow in a horizontal smooth tube: ...
Whenthefluidisinsteady-statelaminarflowinapipe,foraNewtonianfluid,theHagen–Poiseuilleequationisobtained.Thiscanbewrittenas 32LV pfp1p2D2 1.4-20 Therelationshipbetweenskinfrictionandpressuredropcanbewritten.Thenequationbecomes pf hf 1.4-5 Thisisthemechanical-energylossduetoskinfriction andispartoftheΣhf...