... pipe flow pipelines pneumatic systems pneumatics pipelines modeling simulation Manufactured from various mechanical, hydraulic, pneumatic and electrical components, contemporary machinery and equipment can be classified as so-called heterogeneous engineering systems [( 1 )]. One...

... is illustrated with a simple application to a conduit of a general topographic shape. As an example, the model is adapted to simulate the transient pressure response of an oil-industry-like pipeline configuration. The results are validated with experimental data for short, medium, and long slugs. The model...

.... In this paper, an experimental model (a circular and transparent pipeline, 90 mm in ID and 10 m in length) is used to predict pressure loss in a pipeline or tunnel involving resonance and shock waves introduced by a two-phase air-water slug flow. For this purpose, differential pressure transducers were used...

... of Developing Plug and Slug Flows ,” Ph.D. thesis, Technical University of Munich, München. Oroskar , A. R. , and Turian , R. M. , 1980 , “ The Critical Velocity in Pipeline Flow of Slurries ,” AIChE J. 0001-1541 , 26 ( 4 ), pp. 550 – 558 . 10.1002/aic.690260405 Turian , R. M...

...Jaqueline Costa Martins; Paulo Seleghim, Jr. On-line leak detection is a main concern for the safe operation of pipelines. Acoustic and mass balance are the most important and extensively applied technologies in field problems. The objective of this work is to compare these leak detection methods...

...E. Kojima; T. Yamazaki; M. Shinada A new simulation technique called the system modal approximation method (SMA) for fluid transients in complex pipeline systems has been proposed. The superiority of this technique compared to other existing methods has been verified. Thus far, however, detailed...

... region on a part of the valve body. As this region rotates circumferentially, it causes a cyclic asymmetric side load on the valve body, which is considered to be the cause of the vibrations. 26 07 2005 11 06 2006 computational fluid dynamics external flows valves pipelines power...

...Mark A. Chaiko A finite-volume approach, based on the MUSCL-Hancock method, is presented and applied to liquid-column separation transients in pipelines. In the mathematical model, sudden closure of a valve on the downstream end of a pipeline initiates the hydraulic transient, while a head tank...

... section and for the pump efficiency, it is possible to accurately predict the energy savings of the pumping power in the pipeline system. 10 12 2004 07 12 2005 The effect of surfactant additives on centrifugal pump performance was investigated experimentally. It was clarified...

...Xiao-Jian Wang; Martin F. Lambert; Angus R. Simpson By integrating the continuity equation over a short lateral dead end, the effects of a short lateral dead end side branch on pipeline fluid transients can be lumped into a node. The analytical solution to a linearized equation shows...

...Margaret S. Greenwood; Judith A. Bamberger An ultrasonic instrument to measure the density of a liquid or slurry through a stainless steel pipeline wall is described. By using multiple reflections of the ultrasound within the stainless steel wall, the acoustic impedance (defined as the product...

... loop of 23 mm internal diameter. Obtained data are useful for pipeline systems design and also valuable for verification of numerical simulations of the slurry flows. slurries pipe flow pipelines two-phase flow Pipeline systems are widely used in the transportation of coal, iron ore...