The metallic corrosion is a spontaneous process that causes damage in almost all sectors of human activity. Among the most affected structures stand out the pipes for oil transportation. The biocorrosion occurs due to the fixation of bacteria, release of metabolites and formation of biofilms that induce or accelerate the corrosion process. Among the groups of bacteria involved in the corrosion ...

The Lattice Boltzmann (LB) method has been shown to be a highly efficient numerical method for solving fluid flow in confined domains such as pipes, irregularly shaped channels or porous media. Traditionally the LB method has been applied to flow in void regions (pores) and no flow in solid regions. However, in a number of scenarios, this may not suffice. That is partial flow may occur in semi-...

I Research on fundamentals for multiphase pipelining ................................................... 1 II Accomplishments of our previous DOE/DE-FG02-87ER 13798, 9/1/98--8/31/01...... 2 III Lubricated transport of viscous oils. Friction factor efficiency ratio......................... 5 IV Numerical simulation of laminar wavy core flow...........................................................

the use of solar collectors in combination with heat pipes is rapidly growing in recent years.heat pipes, as heat transfer components, have undeniable advantages in comparison with other alternatives. the most important advantage is their high rate of heat transfer at minor temperature differences. although there have been numerous studies on the heat analysis or first thermodynamic analysis of...

Uen-Chin Liang National Tsinghua University Department of Atomic Science Hsinchu 30043, Taiwan Abstract. Oil spillage in a body of water has been of great environmental concern. We present in this paper an automatic oil-spill detection system, which employs thin-film and wavefront-splitting interference techniques to determine the existence of surface oil or oil drops in water. Two independent ...

• A mechanistic model for the prediction of flow pattern transitions in two-phase, oil-water dispersed pipe flows was developed. Mechanistic can predict separation both oil-in-water and water-in-oil dispersions. Dispersion is controlled by either drop settling rate or coalescence rate. one-dimensional that predicts during liquid-liquid horizontal pipes The able to capture evolution along four c...

Glass fiber reinforced polymer (GFRP) composite pipes are mostly used in transmission lines of submarine oil, natural gas, and chemical fluids. The alterations mechanical characteristics applications great importance to the lifespan material. Some important properties materials density hardness value. In this study, changes values GFRP which were unexposed seawater exposed for 1, 2 3 months inv...

Water displacing oil is one of the main emptying methods for mobile pipelines. It has advantages being a simple process and highly safe. At present, determination water scheme pipelines based on oil–oil alternating transport theory product However, insolubility phase results in great difference between flow characteristics pipeline. In addition, due to effect buoyancy, gathers at high point pip...

The chemical stability of iron corrosion scales and the microbial community of biofilm in drinking water distribution system (DWDS) can have great impact on the iron corrosion and corrosion product release, which may result in "red water" issues, particularly under the situation of source water switch. In this work, experimental pipe loops were set up to investigate the effect of sulfate on the...

in this paper, we study the existence of coupled coincidence andcoupled common fixed points for single-valued and fuzzy mappingsunder a contractive condition in metric space. presented theoremsextend and improve the main results of abbas and$acute{c}$iri$acute{c}$ {itshape et al.} [m. abbas, l.$acute{c}$iri$acute{c}$, {itshape et al.}, coupled coincidenceand common fixed point theorems for hybr...