...Irfan Karagoz; Atakan Avci 09 10 2010 22 11 2010 01 02 2011 01 02 2011 friction pipe flow pipes turbulence The discussion made by Tajadura and Gonzales ( 1 ) necessitates the clarification of the comments about our paper ( 2 ). The same notation and comment...

...Rafael Ballesteros-Tajadura; José González This paper shows a comparison of the most classic and historical formulations to obtain the friction factor for cylindrical pipes with novel approaches. Although there has been some evolution of the expressions, basically, the ideas and results remain very...

...B. P. M. van Esch Many centrifugal pumps have a suction velocity profile, which is nonuniform, either by design like in double-suction pumps, sump pumps, and in-line pumps, or as a result of an installation close to an upstream disturbance like a pipe bend. This paper presents an experimental study...

... that the injector-supplying pipe dimensions can exert on the frequency and amplitude of the injection-induced pressure oscillations was widely investigated and a physical explanation of cause-effect relationships was found by energetics considerations, starting from experimental tests. A parametric study...

... complex turbulent flows such as cross flows in banks of cylinders and packed beds, and longitudinal flows in channels, pipes, and rod bundles. For generalization, we shall reexamine the extra production terms due to the presence of the porous media, appearing in the transport equations of turbulence...

..., the effect of increasing polymer concentration is, however, barely discernible. For all welan gum concentrations, as coiled tubing curvature ratio is increased from 0 (for straight pipe) to 0.031, the friction factor increases at any given generalized Reynolds number. On a pound for pound basis...

... effects. With the diffuser effects, the energy is provided by the diffuser and the cavity does not contribute to the energy supply. The cavity is needed only for constituting a vibration system. 27 09 2007 15 01 2008 14 04 2008 hydraulic systems pipe flow pipes swirling...

.... 05 07 2007 08 10 2007 01 04 2008 pipes pistons shock tubes A newly designed double piston-actuated structure ( 1 2 ), which is a variation of the design reported by Oguchi et al. ( 3 ), has been developed for diaphragms that are usually employed to separate the high...

...Eduarda P. F. de Pina; M. S. Carvalho Flow in annular space occurs in drilling operation of oil and gas wells. The correct prediction of the flow of the drilling mud in the annular space between the well wall and the drill pipe is essential to determine the variation in the mud pressure within...

...Peter D. Lysak An important source of vibration and noise in piping systems is the fluctuating wall pressure produced by the turbulent boundary layer. One approach to calculating the wall pressure fluctuations is to use a stochastic model based on the Poisson pressure equation. If the model...