The main objective of this thesis is to study three-dimensional thermoconvective transfers in impact and channel jets using single and hybrid nanofluids (binary and ternary hybrid nanofluids) of different types and shapes. ...

This thesis's work contributes to the numerical study of mixed convection and entropy generation in two different configurations filled with simple and hybrid nanofluids. Two computational codes (Ansys-Fluent 18 and ...

Cracks can exist as a basic material defect or be created during fabrication or construction. These cracks are responsible for the majority of failures that occur in structures such as pipelines that are subjected to ...

The work undertaken in this thesis aims to establish new optimization and modeling approaches for hybrid solar installations (thermodynamic plants). Also, modeling was carried out on the main functional organs of this type ...

In this work, a two-dimensional numerical analysis of the unstable state of an reactive system of two immiscible, non-isothermal liquid layers filling a reactor formed by two parallel glass plates, called Hele-Shaw cell, ...

This work takes into account the economic, environmental and mechanical contexts of regional and local bioproducts from fertile environments in Algeria. We find in nature several solutions to physical problems, particularly ...

Tubular steel structures are widely used in the construction of offshore platforms; several types of junctions are used in this field. The tubular members are assembled by welding, thus forming complex brace/chord intersections ...

The problem of cracks in continuous structures such as plates, beams, bars, trellis or hulls is often very apparent around riveting holes, notches or other connecting leaves. In fact, the holed plates assembled by riveting ...

The present work involves the thermal numerical simulation of laminar forced convection inside an annular pipe completely filled porous material. The DarcyBrinkman-Forcheimer- model is considered to describe the fluid ...

The tribological behavior of the bronze-steel and graphite-bronze couples was studied as a function of electromechanical parameters. To do this, a pin on cylinder tribometer was used. The tests were conducted in dry ...