Formation of a dispersed oil—water flow pattern is common occurrence in lines and pipelines. The capability predicting the size droplets, as well distribution phase volume fraction utmost importance for proper design such systems. present study aims at modelling water oil flows horizontal pipe by employing multi-fluid Eulerian approach along with population balance model. To this end, momentum ...

This paper describes a collaborative theoretical and experimental research effort to investigate both the atomization dynamics of non-Newtonian liquids as well as the performance of coaxial atomizers utilized in pharmaceutical tablet coating. In pharmaceutically relevant applications, the coating solutions being atomized are typically complex, non-Newtonian fluids which may contain polymers, su...

A discrete-bubble model that predicts the rate of oxygen transfer in diffused-bubble systems is evaluated. Key inputs are the applied gas flow rate and the initial bubble size distribution. The model accounts for changes in the volume of individual bubbles due to transfer of oxygen and nitrogen (and hence changing partial pressure), variation in hydrostatic pressure, and changes in temperature....

in this research the quality of walnut kernels under impact loading were studied. due to unavailability of specific varieties of walnut in iran, the tests were carried out on the available genotypes. three different genotypes from walnut orchards of azarshar region were selected and were collected in 2009. a drop test device was designed and constructed to perform the experiments. the impact te...

The application of direct injection (DI) technology can effectively improve the atomization effect heavy fuel to reduce loss engines (HFE). spray characteristics directly affect combustion performance engine. To investigate process and evaporation in-cylinder for an air-assisted (AADI) engine, a simulation calculation model AADI HFE was established with use computational fluid dynamics tool. in...

This article presents research results on mechanically generated oil mists. The was carried out for mixtures the Agip/Eni Cladium 120 SAE 40 API CF industrial and marine engines diluted with diesel Orlen Efecta Diesel Bio at concentrations of 2%, 5%, 10%, 20%, 50% m/m. Pure lubricating pure were also tested. Droplet size distributions determined reference moment which residual discrepancies R b...

drop size distribution in a mixer-settler is an essential design parameter, as obtaining drop size distribution will result in optimum performance of equipment. in this paper for obtaining drop size, several experiments have been performed with a single stage horizontal mixer-settler. a video technique has been used in order to measure the drop size in the mixer-settler with the help of a digit...

In soils under wheat cultivation, soil aggregates stability is increased and destructive effects of erosion decreased, due to organic matters (OM) application. This trail was conducted in Shavoor agriculture research station to determine of mean weight diameter (MWD) under different organic matter sources and amounts in Khuzestan province (at south west of Iran) via a split plot experiment base...