This study aims to perform optimizatione achieve the best diffusion control between channels by designing and analysing a microfluidic-based micromixer. The design analysis of micromixer were made with COMSOL Multiphysics program. Some input output parameters must be defined for Among these parameters, inputs are coefficient inlet flow rate, while outputs velocity, pressure, concentration. Each...

In this study, the effects of maldistribution coefficient on thermo-hydraulic performance discontinuous fin printed circuit heat exchanger (DF-PCHE) entrance head and channels are numerically investigated. To improve flow uniformity at head, in with three types spoiler perforated boards (SPBs) having 3 × 3, 4 4, 5 holes kinds hole diameters (Φd = 30, 25, 20 mm), respectively, compared to an no ...

spatial measurements of conductivity, temperature and depth were used to study salinity variations along the principal channels of the tidal hypersaline creek network in the vicinity of bushehr port, persian gulf during three 25- tidal cycles in both warm and cold months. salinity variations and tidal fluctuations were out of phase throughout the short inverse estuary. the salinity values insid...

In this study, the heat transfer and flow characteristics for cube circular hollow models in channels with cross flow-impinging jet were numerically investigated by using water 2% CuO-Water nanofluid. The numerical work was carried out steady three-dimensional Ansys-Fluent program k-? turbulence model. A fin 45? 90? angles D, 1.166D, 1.333D (K) lengths added to upper channel surface from imping...

Critical heat flux (CHF) was measured and examined with high-speed video for subcooled flow boiling in micro-channel heat sinks using HFE 7100 as working fluid. High subcooling was achieved by pre-cooling the working fluid using a secondary low-temperature refrigeration system. The high subcooling greatly reduced both bubble departure diameter and void fraction, and precluded flow pattern trans...

Catalytic partial oxidation (CPOX) has recently received particular attention because it is one of the most attractive technologies for the production of syngas and hydrogen in small to medium scales. Current study subjected to partial oxidation reforming which have simultaneously studied the effect of the fuel composition and flow rates of methane-oxygen mixed gas on the SOFCs performances. In...

The microfluidic sperm-sorting (MFSS) device is a promising advancement for assisted reproductive technology. Previously, poly(dimethylsiloxiane) and quartz MFSS devices were developed and used for intracytoplasmic sperm injection. However, these disposable devices were not clinically suitable for assisted reproduction, so a cyclo-olefin polymer MFSS (COP-MFSS) device was developed. By micromac...