In this paper, nanofluid heat transfer in a microchannel has been studied using homogenous and Buongiorno’s models, compared with Eulerian-Lagrangian model. The base fluid is water the particles are Al2O3 Cu diameter of 100nm. volume fraction up to 2% Reynolds number range 250-1000. governing equations including continuity, momentum energy, have solved control method (SIMPLE). results show that...

In the present research, the laminar forced convective heat transfer and fluid flow characteristics for Al2O3-water nanofluid flowing in different bend (i.e., 180o and 90o) pipes have been investigated numerically in a three-dimensional computational domain using the finite volume technique. The effects of different pertinent parameters, such as the Reynolds number of the duct, volume fraction ...

For better understanding the effect of nanofluid flow in a porous medium, a set of experiments were conducted on a horizontal glass micromodel for Al2O3-water nanofluids. To characterize the flow of nanofluids the same experiment was done by pure water. The glass micromodel was constructed by a photolithography techniqu...

A nanofluid is composed of a base fluid with suspension nanoparticles that improve the fluid’s thermophysical properties. In this work, authors have conducted experimental tests on an alumina-based (Al2O3/H2O) moving inside 3D-printed lattice channel. The unit cell’s shape can be considered double X or pyramidal truss common vertex. test channel 80 mm long and has cross-sectional area, without ...

common heat transfer fluids such as water, ethylene glycol, and engine oil have limited heat transfer capabilities due to their low heat transfer properties. nanofluids are suspensions of nanoparticles in base fluids, a new challenge for thermal sciences provided by nanotechnology. in this study, we are to optimize and report the effects of various parameters such as the ratio of the thermal co...

in this paper, mixed convection of al2o3-eg-water nanofluid in a square lid-driven enclosure is investigated numerically. the focus of this study is on the effects of variable thermophysical properties of the nanofluid on the heat transfer characteristics. the top moving and the bottom stationary horizontal walls are insulated, while the vertical walls are kept at different constant temperature...

This paper examines the impact of hybrid nanoparticles on stagnation point flow towards a curved surface. Silica (SiO2) and alumina (Al2O3) are added into water to form SiO2-Al2O3/water nanofluid. Both buoyancy-opposing -assisting flows considered. The governing partial differential equations reduced set ordinary equations, before being coded in MATLAB software obtain numerical solutions. Findi...